JPH0315326B2 - - Google Patents
Info
- Publication number
- JPH0315326B2 JPH0315326B2 JP63064106A JP6410688A JPH0315326B2 JP H0315326 B2 JPH0315326 B2 JP H0315326B2 JP 63064106 A JP63064106 A JP 63064106A JP 6410688 A JP6410688 A JP 6410688A JP H0315326 B2 JPH0315326 B2 JP H0315326B2
- Authority
- JP
- Japan
- Prior art keywords
- thermistor
- group
- oxide
- carbide
- thermistor material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 107
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 63
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 59
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 48
- 239000011521 glass Substances 0.000 claims description 42
- 239000011159 matrix material Substances 0.000 claims description 29
- 229910052580 B4C Inorganic materials 0.000 claims description 19
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims description 19
- 229910052742 iron Inorganic materials 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 229910052788 barium Inorganic materials 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- 229910052712 strontium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 description 53
- 239000010410 layer Substances 0.000 description 45
- 239000000203 mixture Substances 0.000 description 39
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 36
- 229910045601 alloy Inorganic materials 0.000 description 34
- 239000000956 alloy Substances 0.000 description 34
- 239000004020 conductor Substances 0.000 description 30
- 239000010408 film Substances 0.000 description 29
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 26
- 229910052751 metal Inorganic materials 0.000 description 24
- 239000002184 metal Substances 0.000 description 24
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 20
- 238000005245 sintering Methods 0.000 description 20
- 239000010931 gold Substances 0.000 description 18
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 18
- 229910052737 gold Inorganic materials 0.000 description 17
- 230000008859 change Effects 0.000 description 16
- 239000002245 particle Substances 0.000 description 16
- 238000010304 firing Methods 0.000 description 15
- 239000002131 composite material Substances 0.000 description 14
- 229910052750 molybdenum Inorganic materials 0.000 description 14
- 229910052759 nickel Inorganic materials 0.000 description 14
- 229910052721 tungsten Inorganic materials 0.000 description 14
- 239000010936 titanium Substances 0.000 description 13
- -1 Si 3 N 4 Inorganic materials 0.000 description 12
- 239000012212 insulator Substances 0.000 description 12
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 12
- 229910052763 palladium Inorganic materials 0.000 description 12
- 229910052719 titanium Inorganic materials 0.000 description 12
- 229910004298 SiO 2 Inorganic materials 0.000 description 11
- 239000007789 gas Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000007789 sealing Methods 0.000 description 11
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 229910052697 platinum Inorganic materials 0.000 description 10
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 9
- 229910052593 corundum Inorganic materials 0.000 description 9
- 239000011733 molybdenum Substances 0.000 description 9
- 239000000843 powder Substances 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- 229910052709 silver Inorganic materials 0.000 description 9
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 9
- 239000010937 tungsten Substances 0.000 description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 8
- 229910001845 yogo sapphire Inorganic materials 0.000 description 8
- 229910010413 TiO 2 Inorganic materials 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 230000002349 favourable effect Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 239000010409 thin film Substances 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 238000005187 foaming Methods 0.000 description 6
- 229910000833 kovar Inorganic materials 0.000 description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 238000007740 vapor deposition Methods 0.000 description 6
- 239000011651 chromium Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 5
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 5
- 150000001247 metal acetylides Chemical class 0.000 description 5
- 238000007751 thermal spraying Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- LTPBRCUWZOMYOC-UHFFFAOYSA-N Beryllium oxide Chemical compound O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 239000005388 borosilicate glass Substances 0.000 description 4
- 238000005219 brazing Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000009713 electroplating Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 4
- 238000007750 plasma spraying Methods 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- 229910052715 tantalum Inorganic materials 0.000 description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 229910001030 Ironânickel alloy Inorganic materials 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 229910017709 Ni Co Inorganic materials 0.000 description 3
- 229910003267 Ni-Co Inorganic materials 0.000 description 3
- 229910003262 NiâCo Inorganic materials 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 3
- 150000001342 alkaline earth metals Chemical class 0.000 description 3
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 229910052810 boron oxide Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
- 239000010955 niobium Substances 0.000 description 3
- 150000002902 organometallic compounds Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910021332 silicide Inorganic materials 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 239000012808 vapor phase Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910017309 MoâMn Inorganic materials 0.000 description 2
- 229910001252 Pd alloy Inorganic materials 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 229910001260 Pt alloy Inorganic materials 0.000 description 2
- 229910018885 PtâAu Inorganic materials 0.000 description 2
- 229910033181 TiB2 Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 150000004703 alkoxides Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 229910021472 group 8 element Inorganic materials 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 125000002524 organometallic group Chemical group 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000001272 pressureless sintering Methods 0.000 description 2
- 239000010944 silver (metal) Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 229910003470 tongbaite Inorganic materials 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000001947 vapour-phase growth Methods 0.000 description 2
- VXQBJTKSVGFQOL-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethyl acetate Chemical compound CCCCOCCOCCOC(C)=O VXQBJTKSVGFQOL-UHFFFAOYSA-N 0.000 description 1
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 description 1
- 229910004762 CaSiO Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 229910017563 LaCrO Inorganic materials 0.000 description 1
- 229910002262 LaCrO3 Inorganic materials 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910016006 MoSi Inorganic materials 0.000 description 1
- 229910017493 Nd 2 O 3 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- VIJYFGMFEVJQHU-UHFFFAOYSA-N aluminum oxosilicon(2+) oxygen(2-) Chemical compound [O-2].[Al+3].[Si+2]=O VIJYFGMFEVJQHU-UHFFFAOYSA-N 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010416 ion conductor Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- UFQXGXDIJMBKTC-UHFFFAOYSA-N oxostrontium Chemical compound [Sr]=O UFQXGXDIJMBKTC-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229940098458 powder spray Drugs 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000005394 sealing glass Substances 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 229940116411 terpineol Drugs 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- ZVWKZXLXHLZXLS-UHFFFAOYSA-N zirconium nitride Chemical compound [Zr]#N ZVWKZXLXHLZXLS-UHFFFAOYSA-N 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Thermistors And Varistors (AREA)
Description
ãçºæã®è©³çŽ°ãªèª¬æã
çºæã®èæ¯
æè¡åé
æ¬çºæã¯ãé«æž©çšã®è² ã®æµæ枩床ç¹æ§ãæãã
ãµãŒãã¹ã¿çŽ åã«é©çšããŠæå¹ãªãµãŒãã¹ã¿ææ
ããã³ãµãŒãã¹ã¿çŽ åã«é¢ããã å è¡æè¡ãšãã®åé¡ç¹ ãµãŒãã¹ã¿ã¯ãææž©æµæäœã®é»æ°æµæã®æž©åºŠäŸ
åæ§ãå©çšãã枩床ã»ã³ãµã§ããã枩床枬å®ãæž©
床å¶åŸ¡çã«æ±çšãããŠãããç¹ã«é«æž©çšãšããŠ
ã¯ãäŸãã°èªåè»ææ°ã¬ã¹æž©åºŠæ€åºã»ã³ãµãç³
æ²¹ã»ã¬ã¹ççŒå¶åŸ¡çšã»ã³ãµãªã©ã«äœ¿çšãããŠã
ãã åŸæ¥ã®é«æž©çšãµãŒãã¹ã¿çŽ åã®ææž©æµæäœã®æ
æãããªãã¡ãµãŒãã¹ã¿ææãšããŠã¯ããã¿ã«ç³
åïŒZrO2âCaOâY2O3âNd2O3âThOçã®ãžã«
ã³ãã¢ç³»ïŒãã¹ããã«åïŒMgOâNiOâAl2O3â
Cr2O3âFe2O3çïŒCoOâMnOâNiOâAl2O3â
Cr2O3âCaSiO3çïŒNio2âCoOâAl2O3çïŒ
MgOâAl2O3âCr2O3âLaCrO3çïŒãã³ã©ã³ãã
åïŒAl2O3âCr2O3âMnO2âCaOâSiO2çïŒãã
ã®ä»ãããã¹ã«ã€ãåãã«ãã«åãªã©ã®è€åé žå
ç©ã®çŒçµäœãçšããããŠããã ãããã®ãã®ã¯ãè€åé žåç©çŒçµäœã§ãããã
ã«ã 1000â以äžã«çµæ¶å€æ ç¹ãæããããšã ç²åéã«ããªã¢ãŒãçæããããšã ãªã©ã®åå ã«ãããçµæå€åã倧ããäžå®å®ãªã
ã®ãå€ããç¹ã«ããžã«ã³ãã¢ç³»ã¯ãé žçŽ ã€ãªã³äŒ
å°äœã§ããããé žåéå åå¿ã䌎ããçµæå€åã
倧ããã ãŸããå€å ç³»ã®è€åé žåç©ã§ããããã«ãæµæ
å€çãç¹æ§ã«ãããŠããã©ããã倧ããã ããã«ããããã®ãã®ã§ã¯ããµãŒãã¹ã¿å®æ°ïŒ¢
ã®å€ã倧ããããµãŒãã¹ã¿ã®æµæã®æž©åºŠä¿æ°ã倧
ããããããšãšãªããåžžæž©ããé«æž©ãŸã§ã®åºãæž©
床ç¯å²ãã«ããŒãããµãŒãã¹ã¿ãšããããšãã§ã
ãªãã€ããç¹ã«500â以äžã®æž©åºŠã§ã¯äœ¿çšã«èã
ãªãã€ãã ããã«å¯Ÿããçåã±ã€çŽ ãçåããŠçŽ ãäž»æå
ãšããåçš®ãµãŒãã¹ã¿çŽ åãç¥ãããŠããã äŸãã°ãç¹å ¬æ42â19061å·ã«ã¯ãåçµæ¶çå
ã±ã€çŽ ã«3Bãããã¯5Bæå çŽ ãïœåãªããïœå
äžçŽç©ãšããŠåŸ®éæ·»å ãããµãŒãã¹ã¿çŽ åãèšèŒ
ãããŠããã ãããããã®ãã®ã¯åçµæ¶äœè£œã䌎ããããç
ç£æ§ãäœã補é ã³ã¹ããé«ããªãã ãŸãããã®ãã®ã¯é«æž©ã§éåžžã«å®å®ãªé»æ°æµæ
å€ã瀺ããã®ã§ã¯ããããçŽ åã倧æ°äžã§é«æž©ã«
ãŠäœ¿çšããå Žåãç¹ã«400â以äžã§ã¯è¡šé¢é žåã
åããŠããŸãããã®ãããä¿è·èãå¿ èŠãšããã
ãã®ä¿è·è圢ææ³ãšããŠã¯ã補é ãæã容æã§ã
ãç¹ã§ãã¬ã©ã¹ã«ãããããã®å°æ¢ã奜é©ã§ã
ãã ããããäžèšã®ãµãŒãã¹ã¿çŽ åã¯ãã¬ã©ã¹å°æ¢
ãè¡ãå·¥çšã«ãããŠãçåã±ã€çŽ ãã¬ã©ã¹ãšã®å
å¿ã«ããçºæ³¡ãããããã¬ã©ã¹å°æ¢ãã§ããªãã ããã«ãç±³åœç¹èš±ç¬¬4086559å·æ现æžã«ã¯ãïœ
åäžçŽç©ã0.7volïŒ ä»¥äžæ·»å ããç±å解ã«ããå€
çµæ¶ç軞æ¶ç³»çåã±ã€çŽ ãçšãããµãŒãã¹ã¿çŽ å
ãèšèŒãããŠããã ãŸããç±³åœç¹èš±ç¬¬4359372å·ããã³å4424507å·
æ现æžã«ã¯ãäžçŽç©ã埮éå«ãçåã±ã€çŽ ãŸãã¯
çåããŠçŽ ã®ã¹ããã¿èèãµãŒãã¹ã¿çŽ åãèšèŒ
ãããŠããã ãããããããã®èèåã®ãµãŒãã¹ã¿ã¯ãåçµ
æ¶åæ§çç£æ§ãäœãã補é ã³ã¹ããé«ããªãããŸ
ãã¬ã©ã¹å°æ¢ãè¡ãããšãã§ããªãã ããã§ãåŸè ã®ã¹ããã¿èèã§ã¯ã¬ã©ã¹ãèžç
ããŠä¿è·èãšããŠçºæ³¡ãæããŠãããããã®å Žå
ã«ããã«çç£æ§ãäœäžããã ä»æ¹ãé žåç©ææãšéé žåç©ææã®è€åçŒçµäœ
ãç¥ãããŠããããã®ãã®ã¯ãåçµæ¶ãèèãšæ¯
èŒããŠçç£æ§ãé«ãã ãã®ãããªè€åçŒçµäœãšããŠã¯ã以äžã®ãããª
çåã±ã€çŽ ãäž»äœãšããè€åçŒçµäœãç¥ãããŠã
ãã (A) çåã±ã€çŽ ãäž»æåãšããŠãBeïŒBeOïŒïŒ¢ïŒ
B2O3ïŒBNïŒB4Cã®ãããããå çŽ æç®ã§20wt
ïŒ ä»¥äžå«æããå€çµæ¶çåã±ã€çŽ çŒçµäœïŒç±³åœ
ç¹èš±ç¬¬4467309å·æ现æžïŒã (B) çåã±ã€çŽ ã«ãã¢ã«ãããŠã ãé žåã¢ã«ãã
ãŠã çã®ã¢ã«ãããŠã ååç©ã®ïŒçš®ä»¥äžã0.5
ã10wtïŒ å«æããå€çµæ¶çŒçµäœïŒç¹éæ60â
49607å·å ¬å ±ïŒã (C) çåã±ã€çŽ ã«ïŒ¢ãç±æ¡æ£ãã埮éã®ïŒ¢ãæ·»å
ããçåã±ã€çŽ çŒçµäœïŒç¹å ¬æ60â52562å·å ¬
å ±ïŒã ãããããããã§ã¯SiCå«æéãå€ããããå
èšåæ§çºæ³¡ã®ããã¬ã©ã¹å°æ¢ãå°é£ã§ããã ãŸããçåã±ã€çŽ ãäž»äœãšãããšãé£å å·¥æ§ã§
ããããµãŒãã¹ã¿ããããžã®åæå å·¥ãå°é£ã§ã
ãã ããã«ãã®å€ã10000K以äžãšå€§ãããªãã
ãµãŒãã¹ã¿ã®æž©åºŠä¿æ°ã倧ãããªããããŠåºãæž©
床ç¯å²ãã«ããŒã§ããªããšããæ¬ ç¹ãããã ãŸãããµãŒãã¹ã¿ææã®çµææ¯ãšæµæçïŒÏïŒ
ãšã®é¢ä¿ã調ã¹ããšããããã§ã¯ãããããªçµæ
æ¯ã®å€åã«å¯ŸããŠãÏãæ¥æ¿ã«å€åããæµæã®ã³
ã³ãããŒã«ãå°é£ã§ããã ããã«ãç¹éæ55â140201å·å ¬å ±ã«ã¯ãSiCã
äž»æåãšããïŒã15wtïŒ RuO2ãš20ã50wtïŒ ã®ã¬
ã©ã¹ãå«ãåèãµãŒãã¹ã¿ãèšèŒãããŠãããã
ããããã®ãã®ããå°å·ãçŒæå·¥çšã«ãããŠãç²
æ«ç¶ã®SiCãšã¬ã©ã¹ãšã®çºæ³¡ãæ¿ãããããã³ã³
ãããŒã«ããããšã¯éåžžã«é£ããã ããã«ãç¹éæ60â37101å·å ¬å ±ã«ã¯çåã±ã€
çŽ ãçªåã±ã€çŽ ã«ãé žåãžã«ã³ããŠã ãé žåãã
ã±ã«ãé žåäºéãé žåã³ãã«ããé žåã¯ãã ãé ž
åãã¿ã³ã®åå°äœé žåç©ãè€åããææãçŒçµã
ããã®ãããã«ã¯ãé žåã¢ã«ãããŠã ãé žåãžã«
ã³ããŠã ã«ã3AïŒ4AïŒ5AïŒ6Aæé·ç§»å çŽ ã®çª
åç©ãããŠåç©ãçåç©ããªããã±ã€åç©ãè€å
ããææãçŒçµãããã®ãèšèŒãããŠããã çåã±ã€çŽ ãçªåã±ã€çŽ ã«åå°äœé žåç©ãè€å
ããææãçŒçµãããã®ã¯ã åå°äœé žåç©ãçŒææã«éå ããããããé»
æ°æµæå€ã®ã³ã³ãããŒã«ãé£ããããŸãé žçŽ æ¬
é¥çã«ãã䜿çšé°å²æ°ã®åœ±é¿ããããããã çåã±ã€çŽ ãçªåã±ã€çŽ ã«æ¯èŒããåå°äœé ž
åç©ã¯çŒæ枩床ãäœããããè€åææã®çŒææ¡
件ãé£ããã ïŒã§èšè¿°ããæ§ã«åå°äœé žåç©ã¯éå ãã
ããšé»æ°æµæå€ããã¡ããããäœäžããããã
æ¯æµæå€ã500âã§æ°åΩcm以äžã«ããã®ãé£
ããããã®ãããµãŒãã¹ã¿åè·¯ã§äžè¬ã«äœ¿çšã
ãã103ã106Ωã®çŽ åã«ããã«ã¯é»æ¥µéãé·ã
ãšããªããã°ãªãããå°ååãé«å¿çæ§ã«åé¡
ãçããã ãŸãã3AïŒ4AïŒ5AïŒ6Aæé·ç§»å çŽ ã®çªåç©ã
ããŠåç©ãçåç©ãªããã±ã€åç©ã¯ãé»æ°çã«è¯
å°äœã«è¿ããããé žåã¢ã«ãããŠã ãé žåãžã«ã³
ããŠã ãšè€åãããå Žåãããããªçµææ¯ã®å€å
ã«ããé»æ°æµæå€ããæ¥æ¿ã«å€åãããã®ã³ã³ã
ããŒã«ãå°é£ã§ããã ããã«ãåèšç¹éæ60â37101å·å ¬å ±ã«ã¯ããµ
ãŒãã¹ã¿ææã®å ·äœççµæãããã€ãèšèŒãããŠ
ããããã®ãã¡ããã®å ¬å ±èšèŒã®36wtïŒ SiCâ
7wtïŒ B4Câ55wtïŒ CoOâ2wtïŒ Li2Oã§ã¯ãLiã
é»å§å°å ã«ããæ¡æ£ãããããCoã¯500âä»è¿ã§
äžå®å®ã§ããããŸãããããã®çµæã§ã¯500âã§
60Ωcm以äžã®ããé»æ¥µéã®ééãæããããªããª
ã©å°ååã§ããªããããã«ã¯ã65wtïŒ SiCâ
35wtïŒ Al2O311éééšã«ïŒéééšã®TiO2ãæ·»å
ãããã®ããŸãã37wtïŒ SiCâ20wtïŒ Al2O3â
35wtïŒ TiO2â8wtïŒ Ta2O3ã§ã¯TiO2ãSiCã®äœç©
æ¯ã§0.5ããå€ãå«æããããããTiO2ãSiCã
ãã³çŒæé°å²æ°ã«ããéå ããå°é»äœãšãªããã
ãã®æµæã®ã³ã³ãããŒã«ãé£ãããããã500â
ã§ã®æµæå€ã®å®å®æ§ã«ãããã ãã®ä»ãåå ¬å ±ã«èšèŒã®çŒçµäœã®å ·äœäŸã¯ã
SiCïŒSi3N4ïŒAl2O3ïŒZrO2ã®ïŒçš®ä»¥äžãšãNiOïŒ
ZnOïŒCoOïŒCr2O3ïŒTiO2ã®ïŒçš®ä»¥äžãšãè€åã
ãŠåœ¢æãããŠãããããããéå±é žåç©åå°äœã¯
çåç©ã«ããéå ããããããé°å²æ°ã«åŒ±ããçŽ
åã®é»æ°æµæå€ãäœãã500â以äžã§äŸ¡æ°ãå€å
ããããçã®ããããã®ç¹ã§æ¬ ç¹ãããã çºæã®ç®ç æ¬çºæã®ç®çã¯ãé«æž©ãç¹ã«400ã800âã®æž©åºŠ
ã§äœ¿çšããŠãå®å®æ§ãæããæµæå€ã®ã³ã³ãããŒ
ã«ã容æã§ããããã¬ã©ã¹å°æ¢ã容æã§ãããµãŒ
ãã¹ã¿ææããã³ãã®ææãé©çšããŠç¹æ§ã®åªã
ããµãŒãã¹ã¿çŽ åãæäŸããããšã«ããã çºæã®é瀺 ãã®ãããªç®çã¯ãäžèšã®æ¬çºæã«ãã€ãŠéæ
ããããããªãã¡ãæ¬çºæã¯å°é»è·¯åœ¢æç©è³ªãšã
ãŠçåã±ã€çŽ ããã³ïŒãŸãã¯çåããŠçŽ ãšãã¢ã«
ãããŠã ãã·ãªã³ã³ããã°ãã·ãŠã ãã«ã«ã·ãŠ
ã ãã¹ããã³ããŠã ããã³ããªãŠã ã®é žåç©ã®ïŒ
皮以äžãããªã矀ããéžæãããçµæ¶è³ªã®ãããª
ãã¯ã¹ç©è³ªãšãå«æããåèšçåã±ã€çŽ ã®å«æé
ãåèšãããªãã¯ã¹ç©è³ªã®å«æéã«å¯Ÿãäœç©æ¯ã§
1.24以äžã§ããçŒçµäœããæ§æãããããšãç¹åŸŽ
ãšãããµãŒãã¹ã¿ææãšãã®ãµãŒãã¹ã¿ææãã
圢æããããµãŒãã¹ã¿ããããæãããµãŒãã¹ã¿
çŽ åã§ããã çºæã®å ·äœçæ§æ 以äžãæ¬çºæã®å ·äœçæ§æã«ã€ããŠè©³çŽ°ã«èª¬æ
ããã æ¬çºæã®ãµãŒãã¹ã¿ææã¯ãå°é»è·¯åœ¢æç©è³ªãš
ããŠçåã±ã€çŽ ããã³ïŒãŸãã¯çåããŠçŽ ãšã
AlïŒSiïŒMgïŒCaïŒSrããã³Baã®ãã¡ã®ïŒçš®ä»¥
äžã®é žåç©ã®éåžžå€çµæ¶è³ªã®ãããªãã¯ã¹ç©è³ªãš
ãå«æããçŒçµäœããæ§æããããã®ã§ããã ãããŠãçåã±ã€çŽ ã®å«æéã¯ãåèšãããªã
ã¯ã¹ç©è³ªïŒAlïŒSiïŒMgïŒCaïŒSrïŒBaã®é žåç©
ã®ïŒçš®ä»¥äžïŒã®å«æéã«å¯Ÿãäœç©æ¯ã§1.24以äžã§
ããã ãã®äœç©æ¯ã1.24ãããããšãæµæå€ãäœäž
ãããŸãåŸè¿°ã®ã¬ã©ã¹å°æ¢å·¥çšçã§çºæ³¡ãçãã
ã¬ã©ã¹å°æ¢ã«ããçŽ ååãå°é£ãšãªãããã§ã
ãã ãªããçåã±ã€çŽ ïŒãããªãã¯ã¹ç©è³ªã®äœç©æ¯
ãïŒã1.24ã§ããã°ãçåã±ã€çŽ ãšçåããŠçŽ ã®
éæ¯ã¯ïŒïŒïŒãïŒïŒïŒã®çš®ã ã®éæ¯ã§ãã€ãŠã
ãããã ããBeã®é žåç©ãããªãªã¢ã¯ããããŠ
æ¯æ§ã匷ãã®ã§é€å€ãããã ãŸããçåã±ã€çŽ ãçåããŠçŽ ããã³ãããªã
ã¯ã¹ç©è³ªã®äœç©æ¯ã¯ãçŒçµäœã®åæé¢ãé¡é¢å å·¥
ããã®ã¡ããããé»åé¡åŸ®é¡èŠ³å¯ããåæåã®é¢
ç©æ¯ãç®åºãããããäœç©æ¯ãšããã°ããã ãããªãã¯ã¹ç©è³ªã¯AlïŒSiããã³2Aæå çŽ ã®
é žåç©ã®ïŒçš®ä»¥äžã®çŒçµäœã§ããã ãããªãã¯ã¹ç©è³ªããã®ãããªé žåç©çŒçµäœãš
ããããšã«ãããã¬ã©ã¹å°æ¢çã®éã®çºæ³¡ãæžå°
ããã ãã®ãããªé žåç©ãšããŠã¯ãé žåã¢ã«ãããŠã
ïŒAl2O3ãç¹ã«Î±âAl2O3ïŒã§ãã€ãŠãããããã
ãã¯ãé žåã·ãªã³ã³ïŒSiO2ïŒãããã«ã¯çš®ã ã®é
æ¯ã®é žåã¢ã«ãããŠã âé žåã·ãªã³ã³ã§ãã€ãŠã
ãããé žåã·ãªã³ã³ãçšããããšã«ãã€ãŠãåæ
å å·¥æ§ãåäžãããããåã容æãšãªãã ãŸãããããã«ããããããã¯ãããã«å ãã
2Aæå çŽ ã®é žåç©ã®ïŒçš®ä»¥äžã§ãã€ãŠãããã Be以å€ã®2Aæå çŽ ã®é žåç©ãå«æãããããš
ã«ãã€ãŠãé»æ°æµæå€ã®ã³ã³ãããŒã«ã容æãšãª
ããçŒçµäœãŠãšãå ã«ãŠçããé»æ°æµæå€ã®äœçœ®
çãªãã©ãããå°ãããªãããŸããåæå å·¥æ§ã
容æãšãªãã ãããã¯ãéåžžãé žåãã°ãã·ãŠã ïŒMgOïŒã
é žåã«ã«ã·ãŠã ïŒCaOïŒãé žåã¹ããã³ããŠã
ïŒSrOïŒãé žåããªãŠã ïŒBaOïŒãç¹ã«ã®åœ¢ã§å«æ
ãããã 2Aæå çŽ ã®é žåç©ã®éã¯ãç®çãšããé»æ°æµ
æå€ã«å¿ããããªãã¯ã¹ç©è³ªã®ïŒã100ïŒ ã®ç¯å²
ã®äžããé©å®æ±ºå®ããã°ããã ããã«ããããªãã¯ã¹ç©è³ªã¯ãAlïŒSiããã³
Be以å€ã®2Aæå çŽ ã®é žåç©ã®ïŒçš®ä»¥äžã«å ãã
4Aæå çŽ ã®é žåç©ã®ïŒçš®ä»¥äžãå«æããŠãããã 4Aæå çŽ ã®é žåç©ãå«æããããšã«ãã€ãŠã
é»æ°æµæå€ã®ã³ã³ãããŒã«ã容æãšãªãããã®çŒ
çµäœå ã§ã®ãã©ãããå°ãããªããåæå å·¥æ§ã
åäžããã 4Aæå çŽ ïŒTiïŒZrïŒHfïŒã®é žåç©ãšããŠã¯ã
é žåãã¿ã³ïŒTiO2ïŒãé žåãžã«ã³ããŠã ïŒZrO2ïŒ
ã奜ãŸããã ããã4Aæå çŽ ã®é žåç©ã®éã¯ãçåã±ã€çŽ
ãçåããŠçŽ ã®å«æéã«å¯Ÿããäœç©æ¯ã§0.5以äžã
ç¹ã«0.3以äžã§ããã ããã¯ãäœç©æ¯ã0.5ãããããšã4Aæå çŽ ã®
é žåç©ãçŒææã«ãSiCãB4Cã«ããéå ãããŠ
å°äœæ§ããã¡ãSiCïŒB4Cãå°äœè·¯åœ¢æç©è³ªã®äž»
äœãšãªãããé«æž©ã§ã®ãµãŒãã¹ã¿ç¹æ§ããã®å®å®
æ§ãäœäžããããã§ããã ãã®ãããªãããªãã¯ã¹ç©è³ªã圢æããé žåç©
çŒçµäœã®å ·äœäŸãšããŠã¯ãαâAl2O3ïŒSiO2ãã
ã©ã€ãïŒ3Al2O3ã»2SiO2ïŒãã¹ãã¢ã¿ã€ã
ïŒMgOã»SiO2ïŒãããªã«ã¹ãã©ã€ãïŒ2MgOã»
SiO2ïŒããžã«ã³ã³ïŒZrO2ã»SiO2ïŒãç£åšïŒSiO2ã»
Al2O3ïŒããã°ãã·ã¢ïŒMgOïŒãAl2O3ã»CaOïŒ
Al2O3ã»TiO2ïŒBaOã»SiO2çã âEngineering Properties of Ceramics
Databook to Guide Materials Selection for
Structural Applicationsâ Battele Memorial
Institute Columbus Laboratries P445ãP447ïŒ
P459ïŒP469ïŒP472ïŒP479ãP480ã«èšèŒã®è€åé ž
åç©ãªã©ãæããããã ãããã®é žåç©çŒçµäœã®ååŠåŒã¯ãããããã«
ãã³å ã«ç€ºããããã®çã§ããããååŠéè«çã«
ãã®çµæãå€å°ã¯ãããŠãããã ãŸãããã®å¹³åã°ã¬ã€ã³ç²åŸã¯éåžž0.1ã100ÎŒ
ïœãç¹ã«0.1ã10ÎŒïœã®ç¯å²ã«ããã çŒçµäœäžã«ãããçåã±ã€çŽ ã¯ãååŠåŒSiCã§
瀺ããããã®ã§ãããååŠéè«çã«ãã®çµæãå€
å°ã¯ãããŠãããããŸãããã®å¹³åã°ã¬ã€ã³ç²åŸ
ã¯ãéåžž0.1ã15ÎŒïœã®ç¯å²ã«ããã çŒçµäœäžã«ãããçåããŠçŽ ã¯ãååŠåŒB4Cã§
瀺ããããã®ã§ãããååŠéè«çã«ãã®çµæãå€
å°ã¯ãããŠãããããŸãããã®å¹³åç²åŸã¯éåžž
0.1ã15ÎŒïœã®ç¯å²ã«ããã æ¬çºæã¯ããããçåããŠçŽ ãçåã±ã€çŽ ãã
ããã¯çåããŠçŽ ãšçåã±ã€çŽ ãšãããããªãã¯
ã¹ç©è³ªäžã«ãŠå°é»è·¯ã圢æããŠãµãŒãã¹ã¿ç¹æ§ã
çºæ®ãããã®ã§ããããããŠãããããã圢æã
ããå°é»è·¯ã¯400â以äžã®é«æž©ã«ãŠå®å®ã§ãè¯å¥œ
ãªãµãŒãã¹ã¿ç¹æ§ãæãããã®ã§ããã 次ã«ãåèšãããªãã¯ã¹ç©è³ªã®é žåç©çŒçµäœã«
é žåã¢ã«ãããŠã ïŒÎ±âAl2O3ïŒãé©çšããå Žå
ã«ã€ããŠãã詳现ã«èª¬æããããã®å Žåãçµæ
ã¯ãäžèšã®çŒçµäœãååŠåæããŠåŸãwtïŒ ã§ç€º
ããŠããã é žåã¢ã«ãããŠã ãçåã±ã€çŽ ããã³çåããŠ
çŽ ã®å«æéããïœïŒïœïŒïœïŒ100wtïŒ ã«ãŠããã
ããé ã«xwtïŒ ïŒywtïŒ ïŒzwtïŒ ãšããå Žåãé ž
åã¢ã«ãããŠã ãçåã±ã€çŽ ããã³çåããŠçŽ ã®
çµæïŒïœïŒïœïŒïœïŒã第ïŒå³ã«ç€ºãããã«ãïŒå
çµæå³ã§ïŒ¡ïŒ100ïŒïŒïŒïŒïŒãïŒïŒïŒïŒïŒ100ïŒã
ïŒ50ïŒ50ïŒïŒïŒã«ãã€ãŠå²ãŸãããã€ïŒ¡ç¹ããã³
ç¹ãå«ãŸãªãçµæç¯å²ã«ããããã®å Žåã奜ãŸ
ããã¯ãïŒ95ïŒïŒïŒïŒïŒãïŒïŒïŒïŒïŒ95ïŒã
ïŒ50ïŒ50ïŒïŒïŒãïŒ95ïŒïŒïŒïŒïŒã«ãã€ãŠå²ãŸã
ãçµæç¯å²ããã奜ãŸããã¯ãïŒ95ïŒïŒïŒïŒïŒã
ïŒ50ïŒïŒïŒ50ïŒãïŒ50ïŒ50ïŒïŒïŒãïŒ95ïŒïŒïŒ
ïŒïŒã«ãã€ãŠå²ãŸããçµæç¯å²ãç¹ã«å¥œãŸããã¯
ïŒ95ïŒïŒïŒïŒïŒãïŒ80ïŒïŒïŒ20ïŒãïŒ65ïŒ35ïŒ
ïŒïŒãïŒ95ïŒïŒïŒïŒïŒã«ãã€ãŠå²ãŸããçµæç¯å²
ã«ãã奜ãŸããçµæãåŸãã ãã®ãããªçµæç¯å²ãšããã®ã¯ã第ïŒå³ã«ãã
ãŠïŒ¡ïŒ100ïŒïŒïŒïŒïŒç¹ãããªãã¡é žåã¢ã«ãããŠ
ã ãããã¯ãããªãã¯ã¹ç©è³ª100wtïŒ ãšãªããšé«
æž©ã§ãé«æµæãšãªããïŒïŒïŒïŒïŒ100ïŒç¹ãããª
ãã¡çåããŠçŽ 100wtïŒ ãšãªããšçŒçµäœãšããã®
ãå°é£ãšãªãããã§ããããŸãBCç·ããäžã«ãª
ããšããµãŒãã¹ã¿çŽ åãšããæã®ïŒ¢å®æ°ã倧ãã
ãªããçŒçµäœãšããã®ãå°é£ãšãªãããã§ããã ãããŠãDFç·ä»¥äžã«ãªããšB4Cããã³ïŒãŸã
ã¯SiCæ·»å ã®å¹æã«ããææã®æµæå€ãåŸãããš
ãã§ãããŸããECç·ä»¥äžã«ãªããšçŒçµæ§ãåäž
ããè¯å¥œãªãµãŒãã¹ã¿ããããåŸãããšãã§ã
ãã ãããŠãGCç·ä»¥äžãšãªã€ãŠãAl2O3éã50wt
ïŒ ä»¥äžãšãªããšçŒçµæ§ã¯ããäžå±€è¯å¥œãªãã®ãšãª
ãã ãã®ãããªå ŽåãB4Cããã³ïŒãŸãã¯SiCæ·»å
ã®å¹æã®äžã€ã¯Al2O3ãããã¯ãããªãã¯ã¹ç©è³ª
ã®æµæãäœäžããããšã«ããããããŠããã®æµæ
äœäžã®å¹æã¯DGCFã§å²ãŸããé åå ã§çºçŸãã
ãã®é åå ã§B4Cããã³ïŒãŸãã¯SiCéãå¢å ã
ãã«ã€ãæµæå€ã¯æŒžæžããããããGCç·ããã
ããšæµæå€åã¯é£œåãæµæå€ã¯ã»ãšãã©äœäžããª
ãããšã«ãªãã ãã®ãããGECã§å²ãŸããé åå ã§ã¯ãéåžž
ã®å Žåã¯ãµãŒãã¹ã¿ãšããŠäœ¿çšå¯èœã§ããããçš
ããåæã«ãã€ãŠã¯æµæå€ãäœãããµãŒãã¹ã¿ãš
ããŠäœ¿çšã§ããªãããšããããåŸã€ãŠãåæã«ã
ãå¶çŽãåããªãããšããããŠãæ·»å éã«ãã€ãŠ
ææã®æµæå€ã«å¶åŸ¡ã§ãããšããç¹ã§ç¹ã«GCç·
以äžã§ããããšã奜ãŸããã ãã詳现ã«è¿°ã¹ããªãã°ãåæSiCã«ã¯ããªãŒ
ã®ïŒ£ããã³Siã®ä»ãïŒAlïŒFeïŒTiçãå«æã
ããããSiCå«æ99wtïŒ çšåºŠä»¥äžã®ãã®ã§ã¯é£œå
æµæå€ã104ΩcmçšåºŠä»¥äžãšãªããGCEã§å²ãŸã
ãé åå ã§äœ¿çšå¯èœã§ããããããåèšæªæºçŽåºŠ
ã®ãã®ã§ã¯GCç·ããäžã§æµæå€ãå°ãããªã€ãŠ
ããŸãããŸããåæB4Cã«ã¯ïŒ¯ïŒïŒ®ïŒFeçãäžçŽ
ç©ãšããŠå«æãããããçŽåºŠ99wtïŒ çšåºŠä»¥äžã®
ãã®ã§ã¯104Ωcm以äžã®é£œåæµæå€ããã¡ãGEC
ã§å²ãŸããé åå ã§äœ¿çšå¯èœã§ããããäžèšæªæº
ã®çŽåºŠã®ãã®ã§ã¯GCç·ããäžã§æµæå€ãå°ãã
ãªã€ãŠããŸãã ãªãããã®DHIFã§å²ãŸããé åã¯ããã奜ãŸ
ããã¯ïŒªïŒ90ïŒïŒïŒ10ïŒãïŒ85ïŒïŒïŒ15ïŒãïŒ80ïŒ
20ïŒïŒïŒãïŒïŒ70ïŒ30ïŒïŒïŒã§å²ãŸããé åãšãªã
ãšãããäžå±€å¥œãŸããæµæå€ãåŸãããšãã§ã
ãã 以äžã«ãããŠã¯ããããªãã¯ã¹ç©è³ªãšããŠÎ±â
Al2O3ãåç¬ã§çšãã αâAl2O3ïŒSiCããã³B4Cã®å«æéãïœïŒïœïŒ
ïœãšããå Žåã®å¥œãŸããçµæç¯å²ã«ã€ããŠè¿°ã¹ãŠ
ããã αâAl2O3ãä»ã®ãããªãã¯ã¹ç©è³ªã«ãããŠçš
ããå Žåã«ã¯ãä»ã®ãããªãã¯ã¹ç©è³ªã®çè«å¯åºŠ
ãÏmïŒÎ±âAl2O3ã®çè«å¯åºŠãÏaããããšãã
ïŒ100ïŒïŒÏmxïŒÏaïŒïœïŒïœïŒãšãããšããã
ãªãã¯ã¹ç©è³ªã¯AxÏmïŒÏaéééšãSiCã¯Ayéé
éšãB4Cã¯Azéééšçšããã°ããããããŠãå
èšç¬¬ïŒå³ã®ç¹ïŒ¡ãïŒã®ïŒïœïŒïœïŒïœïŒã«å¯Ÿå¿ãã
ïŒAÏmxïŒÏaïŒAyïŒAzïŒã«ãŠæ±ºå®ãããåçµæ
ç¯å²ãåæåã®å¥œé©ãªå«æééç¯å²ã§ããã ãã®ãããªå Žåãåæåã®çè«å¯åºŠã¯ãåèš
Battele Memorial Institute Columbus
Labovatoriesã®æç®ã«èšèŒãããŠããããŸãã
ããã容æã«èšç®å¯èœã§ããã αâAl2O3ã¯ÏaïŒ3.98ïœïŒcm3ãB4Cã¯2.52ïœïŒ
cm3ã SiCã¯3.21ïœïŒcm3ã§ããããã®ä»ãäŸãã°
2MgOã»SiO2ã¯3.71ïœïŒcm3çã§ããã ãªããæ¬çºæã§ã¯ãB4CïŒSiCããã³ãããªã
ã¯ã¹ç©è³ªã®äœç©æ¯ããµãŒãã¹ã¿ç¹æ§ããã³çºæ³¡é²
æ¢ç¹æ§ã決å®ãããã®ã§ããã åŸã€ãŠãαâAl2O3ã®çè«å¯åºŠãÏaïŒSiCã®ç
è«å¯åºŠãÏsïŒB4Cã®çè«å¯åºŠÏbãšãããšãã ïŒ100ïŒïŒïœïŒÏaïŒïœïŒÏsïŒïœïŒÏbïŒãšãããšã ïŒBxïŒÏaïŒByïŒÏsïŒBzïŒÏbïŒãäžèšïŒïœïŒïœïŒ
ïœïŒã«å¯Ÿå¿ããäœç©æ¯çãšãªãã æ¬çºæã®çŒçµäœã¯ã奜ãŸããã¯ãã®ãããªéé
æ¯çµæããã€ãã®ã§ããããåèšã®ããã«å®æž¬ã
ããSiCïŒãããªãã¯ã¹ç©è³ªã®äœç©ãšããŠã¯1.24
以äžã§ããã ãŸããçŒçµäœã®å®æž¬å¯åºŠã¯ãçŒçµäœã®çè«å¯åºŠ
ã®75ïŒ ä»¥äžãç¹ã«90ã100ïŒ ãç¹ã«95ã100ïŒ ã§ã
ãããšã奜ãŸãããããã«ãããçŽ åã®é»æ°æµæ
å€ã®çµæå€åç¹æ§ãåäžããã æ¬çºæã«ãããçŒçµäœã§ã¯ãçåã±ã€çŽ ãªãã
çåããŠçŽ ã®äžéšãçŒæäžã«é žåç©ïŒé žåã±ã€
çŽ ãé žåããŠçŽ ïŒã«å€åããŠããŠãããã ãããã¯åèšé žåç©ã®äžéšãçåç©ã«å€åããŠ
ããŠãããã ãã ããé žåããŠçŽ ã®å«æéã¯ïŒã1wtïŒ ã§ç¹
ã«0.1ã0.5wtïŒ ã§ããããšã奜ãŸããã é žåããŠçŽ ãç¹ã«B2O3ã¯ã¬ã©ã¹è³ªãšãªããã¬
ã©ã¹çžãå¢å ããäœèç¹ãšãªããé»æ°æµæã®ã³ã³
ãããŒã«ããçŒçµäœã®ç²ååŸã®ã³ã³ãããŒã«çã
å°é£ãšãªãããã§ããã æ¬çºæã®ãµãŒãã¹ã¿ææã¯ããããªãã¯ã¹ç©è³ª
ãšãå°é»è·¯åœ¢æç©è³ªãšããŠçåã±ã€çŽ ããã³ïŒãŸ
ãã¯çåããŠçŽ ãšãå«æãããã®ã«ãããã«å¯æ
åãšããŠ3Aæå çŽ ã®äžçš®ä»¥äžãå çŽ æç®ã§å¥œãŸ
ããã¯0.01ã10wtïŒ å«æãããçŒçµäœããæ§æã
ããããšãã§ããã 3Aæå çŽ ã¯ãéå±åäœãšããŠå«æãããŠãã
ååç©ãšããŠå«æãããŠãããããã¯ããããè€
åå«æãããŠãããã 3Aæå çŽ ãšããŠã¯ãç¹ã«ïŒ¹ïŒCeã奜ãŸããã
ååç©ãšããŠå«æãããå Žåã¯ããããã®å çŽ ã®
é žåç©ïŒY2O3ïŒCeO2ïŒãããã¯çåç©ã奜ãŸã
ãã ãããã®å çŽ ãå çŽ æç®ã§å¥œãŸããã¯0.01ã
10wtïŒ å«æãããããšã«ãããé»æ°æµæå€ã®ã³
ã³ãããŒã«ã容æãšãªããçŒçµäœãŠãšãå ã®é»æ°
æµæå€ã®äœçœ®çãã©ãããå°ãããªãã ãŸãã3Aæå çŽ ã«ããããããã¯ããã«å ãã
å¯æåãšããŠãéã奜ãŸããã¯éå±åäœãé žåç©
ïŒFe2O3ïŒãçåç©ã®ïŒçš®ä»¥äžã®åœ¢å«æãããŠãã
ãã Feã3Aæå çŽ ãšåçã®å¹æããã€ã Feã®å«æéã¯ãå çŽ æç®ã§0.01ã10wtïŒ ã奜
ãŸããã ãªããé以å€ã®ïŒæå çŽ ãäŸãã°CoïŒNiïŒRu
çã§ã¯ã500â以äžã®äœ¿çšæž©åºŠã§é žçŽ æ¬ é¥ã®éã
å€åãããããå«æéãå€ããªããšãé»æ°æµæã®
çµæå£åãçããããã®ããé以å€ã®ïŒæå çŽ ã®
éå±åäœãé žåç©ãçåç©çã®å«æã¯æé€ããã
ãã®ã§ã¯ãªãããå çŽ æç®ã§1wtïŒ ä»¥äžãç¹ã«ïŒ
ã0.5wtïŒ ã§ããããšã奜ãŸããã ãã®ãããªå¹æã¯ãåèšã«ãããŠãããªãã¯ã¹
ç©è³ªã«ã€ããŠè¿°ã¹ãããã«ã2Aæå çŽ ããã³4A
æå çŽ ã®é žåç©ã§ãå®çŸããããããŠããããã®
奜é©å«æéã¯ãåèšããããã«ããããªãã¯ã¹ç©
質ã®å šéšãŸãã¯äžéšã§ããããããå çŽ æç®ã§
0.01wtïŒ ä»¥äžã§ããããšã奜ãŸããã ããã«ããã®2Aæå çŽ ããã³4Aæå çŽ ã奜ãŸ
ããã¯MgïŒCaïŒSrïŒBaïŒTiïŒZrã®ïŒçš®ä»¥äžã¯
å çŽ åäœã§ãã€ãŠããçåç©ã§ãã€ãŠãããã奜
ãŸããã¯å çŽ æç®ã§0.01ã10wtïŒ ã®å«æéã«ãŠã
æµæå€ã®ã³ã³ãããŒã«ã容æãšãªãããã®ãã©ã
ããå°ãããªãã ããã«ãå¿ èŠã«å¿ããä»ã®å¯æåããäŸãã°å
äœãé žåç©ãçåç©çã®åœ¢ã§å«æããããšãã§ã
ãã ãŸãã5Aæã6Aæå çŽ ã«ã€ããŠã¯ããã®å«æ
ã«å¹æã¯ãªãããå¿ ããããã®å«æã¯æé€ããã
ãã®ã§ã¯ãªãããã ããå€éã®æ·»å ã¯ãµãŒãã¹ã¿
ç¹æ§ãäœäžãããã®ã§ãå çŽ æç®ã§10wtïŒ ãç¹
ã«1wtïŒ ããããªãããšã奜ãŸããã 次ã«ã1Aæå çŽ ãäŸãã°NaïŒLiçã«ã€ããŠã¯
ç¹ã«å«æãããªãããšã奜ãŸãããããã¯ãµãŒã
ã¹ã¿çŽ åã«é»å§ãå°å ãããšããããã®ã€ãªã³ã
移åãæ¡æ£ããæµæãçµæå£åããããããã§ã
ãããŸããã¬ã©ã¹å°æ¢ã®éã«ãã¬ã©ã¹äžã«ããã
ããæ¡æ£ãããããç¹æ§å£åãçããããããã§
ããã 1Aæå çŽ ã®å«æéã¯å çŽ æç®ã§ïŒã1wtïŒ ã
ç¹ã«ïŒã0.001wtïŒ ã§ããããšã奜ãŸããã ãŸãã7Aæå çŽ ã®å«æã奜ãŸãããªãã7Aæ
å çŽ ã¯äŸ¡æ°ãå€åãããããç¹æ§ã®çµæå€åãç
ããããããã§ããã 7Aæå çŽ ã®å«æéã¯ãå çŽ æç®ã§ïŒã1wtïŒ ã
ç¹ã«ïŒã0.05wtïŒ ã§ããããšã奜ãŸããã ããã«ã1Bæã2Bæããçµæå€åãçããã
ãã®ã§ãå çŽ æç®ã§ïŒã1wtïŒ ãç¹ã«ïŒã0.05wt
ïŒ ã§ããããšã奜ãŸããã ãã®ä»ãïŒAl以å€ã®3Bæå çŽ GaïŒInïŒTlã
ïŒã1wtïŒ çšåºŠä»¥äžå«æãããŠãããã ãã ããïŒSiïŒïŒ¯ïŒïŒ®ä»¥å€ã®4Bæã5Bæã
6BæïŒ7Bæå çŽ çã¯ç¹æ§äžå¥œãŸãããªãã®ã§ïŒ
ã1wtïŒ ã®å«æéã§ããããšã奜ãŸããã ãªããå¯æåãšããŠã¯ã埮éã®çªåç©ãã±ã€å
ç©ãããŠåç©çãå«æãããŠããŠãããã ãããå¯æåã®ç·èšã¯10wtïŒ ä»¥äžã§ããããš
ã奜ãŸããã çŒçµäœäžã«ããããããã®å¯æåã¯ãååç©ãš
ããŠå«æãããå Žåã¯ãååŠéè«çã«ãã®çµæã
å€å°ã¯ãããŠãããããŸãããã®å¹³åç²åŸã¯ãé
å±åäœã®å Žåã¯ãéåžžïŒã5ÎŒïœã®ç¯å²ã«ããã
ååç©ã®å Žåã¯ãéåžž0.1ã5ÎŒïœã®ç¯å²ã«ããã ããã«å¿ èŠã«å¿ããåèšã®å¯æåãããã¯çŒçµ
ã«ãããããã«å€åããååç©ãäŸãã°çé žå¡©ã
ææ©éå±ååç©çãæ·»å ããã 2Aæã3Aæã4AæãFeã®éå±åäœãããã¯
ååç©ã®ç²æ«ãšããŠã¯ãäžè¬ã«å¹³åç²åŸïŒã5ÎŒ
ïœã§ãçŽåºŠ95wtïŒ ä»¥äžã®ãã®ãçšãããããã
ã¯æº¶æ¶²æ·»å ããŠãããã ãã®ãããªçŒçµäœã¯æ¬¡ã®ããã«ããŠåŸãããã æå®éã®é žåã¢ã«ãããŠã çã®ãããªãã¯ã¹ç©
質ã®ç²æ«ãšçåã±ã€çŽ ç²æ«ããã³ïŒãŸãã¯çåã
ãŠçŽ ç²æ«ãšããšã¿ããŒã«ãã¢ã»ãã³çã®æº¶åªãå
ããŠããŒã«ãã«çã«ãã湿åŒæ··åããã é žåã¢ã«ãããŠã ïŒAl2O3ïŒçã®äžèšé žåç©ã®
ç²æ«ãšããŠã¯äžè¬ã«å¹³åç²åŸ0.1ã5ÎŒïœã§ãçŽåºŠ
99.5wtïŒ ä»¥äžã®ãã®ãçšããã ãããé žåç©ã¯ãçé žå¡©ãææ©éå±ååç©çã®
çŒçµã«ãã€ãŠé žåç©ã«ãªãååç©ã§ãã€ãŠãã
ãã çåã±ã€çŽ ïŒSiCïŒç²æ«ãšããŠã¯äžè¬ã«å¹³åç²
åŸ0.5ã5ÎŒïœã§éåžžçŽåºŠ98wtïŒ ä»¥äžã®ãã®ãçšã
ãã çåããŠçŽ ïŒB4CïŒç²æ«ãšããŠã¯äžè¬ã«å¹³åç²
åŸ0.5ã5ÎŒïœã§çŽåºŠ97wtïŒ ä»¥äžã®ãã®ãçšããã 溶åªéã¯ç²æ«ã®100ã120wtïŒ çšåºŠãšããã ãŸããå¿ èŠã«å¿ããŠããã«ãåæ£å€çãæ·»å ã
ãŠãããã ãã®åŸäžèšæ··åç©ã宀枩ã§å å§æ圢ããé žçŽ é°
å²æ°äžãããã¯éé žåæ§é°å²æ°äžã§åžžå§çŒçµæ³ã
ããããã¬ã¹ïŒHPïŒçŒçµæ³ãç±ééæ°Žå§ïŒHIPïŒ
æ³ãªã©ã«ãããã®æ圢äœãçŒçµããåŸãæŸå·ããŠ
åŸãããã å å§æ圢ã®éã®å§åã¯ã500ã2000KgïŒcm2çšåºŠ
ã§ããã çŒçµæã®éé žåæ§é°å²æ°ãšããŠã¯ãN2ïŒArïŒ
Heçã®äžæŽ»æ§ã¬ã¹ãïŒCOãåçš®çåæ°ŽçŽ ãª
ã©ããããã¯ãããã®æ··åé°å²æ°ãããã«ã¯ç空
çã®çš®ã ã®ãã®ã§ãã€ãŠããã åžžå§çŒçµæ³ã®å Žåã¯å€§æ°å§ã§ãããçŒçµæã®æž©
床ã¯1600ã1900âããã奜ãŸããã¯1750ã1800â
ã§æå¹ã§ããã 枩床ã1600âããäœãå Žåã«ã¯ãé·æéçŒçµã
ãŠãååã«ã¯ç·»å¯åããã1900âããé«ãå Žå
ã¯ãAl2O3çã®é žåç©ãšSiCããã³ïŒãŸãã¯B4C
ãšã®çžäºåå¿ãæ¿ãããªãããã§ããã çŒçµæéã¯ãéåžž0.5ãïŒæéã§ãããç¹ã«ã
1750âã§ã¯ïŒæéçšåºŠã§ããããšã奜ãŸããã HPçŒçµæ³ã®å Žåããã¬ã¹å§åã¯150ã250KgïŒ
cm2ã枩床ã¯1500ã1800âãç¹ã«1650ã1750âã奜
ãŸããã 枩床ã1500âããäœããšãç·»å¯ãªçŒçµäœãåŸã
ããã1800âããé«ããšãAl2O3çã®äžèšãããª
ãã¯ã¹ç©è³ªãšSiCããã³ïŒãŸãã¯B4Cãšã®çžäºå
å¿ãæ¿ãããªãããã§ããã çŒçµæéã¯ãäžè¬ã«ïŒãïŒæéã§ããã HIPçŒçµæ³ã®å Žåã¯ãåæç²æ«ã®æ圢äœãé žçŽ
é°å²æ°äžãããã¯éé žåæ§é°å²æ°äžïŒäŸãã°ã
1200âãŸã§ç空äžããã®åŸã¯Aré°å²æ°äžçã奜
ãŸããïŒã§äºåçŒçµãã次ãã§HIPçå ã§ãã®äº
åçŒçµäœãçŒçµãããäºåçŒçµã®æž©åºŠã¯1400ã
1650âããã®æéã¯ïŒãïŒæéãšããã®ãããã ãŸããHIPæ³ã«ããã枩床ã¯1200ã1500âãçŒ
çµæéã¯ïŒãïŒæéãå§åã¯1000ã1500KgïŒcm2ã§
ãããé žçŽ é°å²æ°äžãããã¯Arçã®äžæŽ»æ§é°å²
æ°äžã§è¡ãã°ããã ãã®å Žåã宀枩ã§é žçŽ ã¬ã¹ãArã¬ã¹çã300ã
400KgïŒcm2ãŸã§å å§ãããã®åŸãäžèšã®ããã«å
ç±ã«ããå§åããããã ãã®ããã«äœè£œãããµãŒãã¹ã¿ææã¯ãæµæå€
ã500âã§102ã107ΩïœçšåºŠã§ããã400ã800â
ã®æž©åºŠç¯å²ã§äœ¿çšãªããä¿åããŠãæµæå€ã®å€å
ã¯ã»ãšãã©ãªãã€ãã ãŸããã®å€ã50ã480âã§1000ã5000Kã§ã
ã€ãã ãµãŒãã¹ã¿ææã®çµææ¯ãšæµæçïŒÏïŒãšã®é¢
ä¿ã調ã¹ããšã第ïŒå³ã«ç€ºãããã«ãæ·»å éã«ã
ãÏå€åãæ¥å³»ã§ãªããçµææ¯ãå€åãããããš
ã«ããææã®æµæãåŸãããšã容æãšãªã€ãã ãªãã第ïŒå³ã¯ãããªãã¯ã¹ç©è³ªã«é žåã¢ã«ã
ããŠã ãé©çšãããã®ã«ã€ããŠã®ã°ã©ãã§ããã ãŸããé žåã¢ã«ãããŠã ãåèšã®é žåç©ã«ãã
ãå Žåã¯ããµãŒãã¹ã¿ãããçãšããŠé©çšãããš
ãåæå å·¥æ§ãæ¹åãããã æ¬çºæã®ãµãŒãã¹ã¿ææã«ãããŠã¯ã2Aæã
3Aæã4Aæããã³Feããéžã°ããå°ãªããšãäž
皮以äžã®å çŽ ãå«æãããããšã«ããé»æ°æµæå€
ãã³ã³ãããŒã«ã§ãããé»æ°æµæå€ã¯äžèšå çŽ ã®
çš®é¡ã«ãã以äžã®å€ããšãããšãã§ããã å çŽ é»æ°æµæå€ ïŒkÎ©ïŒ 2Aæ 100ã400 3Aæ 130ã140 4Aæ 60ã300 Fe 20ã 80 äžèšã®ããã«ããŠäœæãããµãŒãã¹ã¿ææããµ
ãŒãã¹ã¿ããããšããŠæ¬çºæã®ãµãŒãã¹ã¿çŽ åã«
é©çšããã ãã®ãããªãµãŒãã¹ã¿ãããã®å¯žæ³ã¯ãéåžžã
ã¿ã0.5ã1.0mmããšã³0.5ã1.0mmãåã0.5ã1.0mm
çšåºŠã§ããã æ¬çºæã®ãµãŒãã¹ã¿çŽ åãšããŠã¯ããŸãããã
ããã¬ã©ã¹å°æ¢åãµãŒãã¹ã¿çŽ åã奜ãŸãããã®
ãšããŠæããããã ãã®ãããªã¬ã©ã¹å°æ¢åãµãŒãã¹ã¿çŽ åïŒã¯ã
äŸãã°ç¬¬ïŒå³ã«ç€ºãããã«ããµãŒãã¹ã¿ãããïŒ
ïŒã«äžå¯Ÿã®é»æ¥µå±€ïŒïŒïŒïŒïŒã圢æãããã®é»æ¥µ
å±€ïŒïŒïŒïŒïŒã«ãªãŒãäœïŒïŒïŒïŒïŒãæ¥ç¶ããã
ããã¬ã©ã¹ïŒã§å°æ¢ããæ§é ã®ãã®ã§ããã é»æ¥µå±€ïŒïŒïŒïŒïŒã¯ãéåžžããµãŒãã¹ã¿çŽ åã«
çšããããå°é»æ§ææãããªãé»æ¥µãããã¯å°é»
æ§ææãå«æããé»æ¥µã§ããã°ã©ã®ãããªãã®ã§
ãã€ãŠãããç¹ã«å¶éã¯ãªãã å°é»æ§ææãšããŠã¯ãå ¬ç¥ã®å°é»æ§ç©è³ªãçšã
ãã°ãããAuïŒAgïŒPtïŒPdïŒïŒ·ïŒCuïŒNiïŒ
MoïŒAlïŒFeïŒTiïŒMnïŒNbïŒTaçããããã¯
PtâAuïŒPdâAuïŒPtâPdâAuïŒPdâAgïŒPt
âPdâAgïŒFeâNiâCoïŒFeâNiïŒMoâMnç
ã®åéãªã©ãããã䜿çšå¯èœã§ããã ãã®ãããªé»æ¥µå±€ãšããŠã¯ã第ïŒã«æº¶å°ã«ãã
圢æããã溶å°èã奜ãŸããæããããã ãã®ãããªæº¶å°èã®æ質ã¯ãåŸæ¥å ¬ç¥ã®ãã®ã¯
ãããã䜿çšå¯èœã§ããããç±èšåŒµä¿æ°ã®äžèŽã
ãµãŒãã¹ã¿ããããšã®å¯çæ§çã®ç¹ã§ããã±ã«ã
ãã³éãå«æããåéããŸãã¯ã¢ãªããã³ããã
ãã¯ãã¿ã³ã°ã¹ãã³ãããã¯ããããå«ãåéã
çšããããšã奜ãŸããã ããã±ã«ããã³éãå«æããåéãšããŠã¯ã
Ni20ã60wtïŒ ïŒFe40ã80wtïŒ ã®ãã®ã奜ãŸã
ãããããã«ã¯20wtïŒ ä»¥äžã®ç¯å²ã§CoïŒMnçã
å«æãããŠããŠãããã ãããã®ãã¡ã§ã¯ãç±èšåŒµä¿æ°ã®ç¹ã§ã29wt
ïŒ Niâ17wtïŒ Coâæ®Feã®çµæãæããã³ããŒã«
åéããã³ã41ã43wtïŒ Niâæ®Feã®çµæãæã
ã42ã¢ãã€åéãçšããããšã奜ãŸããã ã³ããŒã«åéã¯ç±èšåŒµç¹æ§ã硬質ã¬ã©ã¹ã®ãã
ãšããäžèŽããŠããã硬質ã¬ã©ã¹ãã»ã©ããã¯ã®
ããŒã¡ããã¯ã·ãŒã«æãšããŠçšããããåéã§ã
ãããŸãã42ã¢ãã€åéã¯ç¡¬è³ªãŸãã¯è»è³ªã¬ã©ã¹
å°çææãšããŠãã©ã³ãžã¹ã¿ããã€ãªãŒãã®ãªãŒ
ãç·ãICã®ãªãŒããã¬ãŒã ããªãŒãã¹ã€ããçš
ãªãŒããªã©çš®ã ã®ããŒã¡ããã¯ã·ãŒã«ãšããŠäœ¿çš
ãããŠããã ãŸããMoïŒïŒ·ããããã¯Moããã³ïŒãŸãã¯
ãå«æããåéã奜é©ã«çšãããããåéã®å Ž
åãMoããã³ïŒãŸãã¯ïŒ·ã20wtïŒ ä»¥äžå«æãã
ããšã奜ãŸããã 溶å°ã«ãã€ãŠåœ¢æããã溶å°èãããªãé»æ¥µé¢
ã¯ãåŸæ¥ã®é»æ¥µåœ¢ææ¹æ³ã§ã¯åŸã«ããRnax10ÎŒïœ
以äžã®é¢ã容æã«åŸãããããã®çºããªãŒãäœïŒ
ïŒïŒïŒïŒãšã®æ¥çæ§ãéåžžã«ããçã®å©ç¹ãã
ãã 溶å°ãçšãããšãã«ã¯ãçŒæãè¡ããªãã®ã§ã
ãµãŒãã¹ã¿ããããæå·ãç¹æ§å£åãçããããš
ããªãããŸããååãªèåãšããããšãã§ããç¹
æ§ã®çµæå£åãçããªããããã«ã¯ããªãŒãçãš
ã®ååãªæ¥çåããããããããã«ã¯ãã¬ã©ã¹å
ãååšããªãã®ã§ãçåç©ãšã®åå¿ã«ããçºæ³¡ã
çããããšããªãããµãŒãã¹ã¿ãããïŒãšã®åå
ãªå¯çæ§ãããããã 溶å°ãšããŠã¯ãã¬ã¹ãã¬ãŒã ãé»æ°ã¢ãŒã¯ãã
ã©ãºãçãç±æºãšããçš®ã ã®æ¹æ³ãå¯èœã§ãã
ãããã®äžã§ãç¹ã«å¯çæ§ãèåã®ã³ã³ãããŒã«
æ§ã®ç¹ã§ãã©ãºã溶å°ãçšããããšã奜ãŸããã ãã©ãºã溶å°ã¯ãç±ãã©ãºããæããé«ç±ãšã
ã«ã®ãŒãå©çšããŠç²æ«ææã溶èãããããåºæ
è¡šé¢ã«å¹ãä»ããŠè¢«èã圢æããè¡šé¢å å·¥æè¡ã§
ããã倧æ°å§ã®ããšã§ãå·éïŒ100ã300âïŒã®çŽ
æã«ãå¯çåã®ãã被èãéãå å·¥é床ã§åŸãã
ãšãã§ããè€å被èã®çæã容æã§ããã äžè¬çãªãã©ãºã溶å°ã®æ¹æ³ãšããŠã¯ãæ°Žå·ã
ããéœæ¥µãšé°æ¥µãšã®éã«é«åšæ³¢ã¹ã¿ãŒã¿ãŒãçŽæµ
é»æºã«ããã¢ãŒã¯ãæç¶ããããããžäŸçµŠããã
ãã©ãºãã¬ã¹ãè¶ é«æž©ã«å ç±ãããã©ãºããžãšã
ããçºçãããããã©ãºããžãšããçæã¬ã¹ã¯ã
ArïŒHeïŒH2ïŒN2çã®ã¬ã¹ããã³æ··åã¬ã¹ã䜿
çšãããã ãã®ãã©ãºããžãšããã®äžãžç²æ«æº¶å°ææãäŸ
絊ãããšã溶å°ææã¯å ç±æº¶èãããå éãããŠ
åºæè¡šé¢ã«è¡çªããåºæã«æ¿¡ããªããç±ã奪ã
ããåºåããŠè¢«èŠã圢æããã ãã®å Žåãéåžžãã©ãºãã¬ã¹æµéã¯ïŒã100
ïŒminçšåºŠãåºæ¿æž©åºŠã¯100ã300âçšåºŠããã©
ãºããžãšãã枩床ã¯10000ã30000âçšåºŠãããã«
åæç²ååŸã¯10ã60ÎŒïœçšåºŠã§ããã ãã®ããã«ããŠåœ¢æãããé»æ¥µå±€ïŒïŒïŒïŒïŒã®
åãã¯ãéåžžïŒã200ÎŒïœãç¹ã«20ã150ÎŒïœãã
ã奜ãŸããã¯50ã100ÎŒïœã§ããã5ÎŒïœæªæºã§ã¯
çç£æ§ã®ç¹ã§äžå©ã§ããã200ÎŒïœä»¥äžã§ã¯æå³
ããªãã ãŸããé»æ¥µå±€ïŒïŒïŒïŒïŒã®Rnaxã¯10ã40ÎŒïœçš
床ã奜ãŸããã 溶å°èããæ§æãããé»æ¥µå±€ïŒïŒïŒïŒïŒã¯åçš®
äžå°å±€ãæããŠãããã ãã®å Žåäžå°å±€ã®æ質ãšããŠã¯åçš®éå±ã®èžç
èçãããã 第ïŒã«å¥œãŸããæ æ§ãšããŠã¯ãäžèšã®ãããªïŒ
å±€æ§é ãããã ãã®å Žåãå Žåã«ãã€ãŠã¯ãäžå±€ã®ã¿ã§ãã
ãã äžå±€æ§é ã®å Žåãé»æ¥µå±€ïŒïŒïŒïŒïŒã¯ãã¿ã³ã°
ã¹ãã³ãã¢ãªããã³ããã¿ã³ãããã±ã«ãã¿ã³ã¿
ã«ãããªããéãéãéãçœéããã³ãã©ãžãŠã
ããéžã°ããéå±åäœããŸãã¯ãããã®ãã¡ã®äž
皮以äžãå«ãåéãå°é»æ§ææãšããæ°çžããã
ã¯æ¶²çžæé·æ³ã«ãã圢æãããããšã奜ãŸããã
ãã®ãšããµãŒãã¹ã¿ææã®é»æ°æµæå€å€åãæå°
éã«ãããããããšããå¹æãçºæ®ããããéå±
åäœãçšããå Žåãç¹ã«ãã¿ã³ãããã±ã«ãã¿ã³
ã°ã¹ãã³ãã¢ãªããã³ãã¿ã³ã¿ã«ãããªããéã
çšããããšã奜ãŸããããã®å ŽåããµãŒãã¹ã¿ã
ãããšã®å¯çæ§çã®ç¹ã§ãã奜ãŸããçµæãåŸ
ãã ãŸããæ¬çºæã«ãããŠã¯ããããã®ãã¡ã®äžçš®
以äžãå«ãåéã奜é©ã«çšããããããã®å Žåçš
ããããåéãšããŠã¯ç±èšåŒµä¿æ°çã®çç±ã«ãã
FeâNiç³»ãFeâNiâCoç³»çäžèšã®éå±ãç·èš50
ïŒ ä»¥äžå«æããã®ãçšããããšã奜ãŸããã æ°çžãããã¯æ¶²çžæé·æ³ã«ãã圢æãããããš
ã奜ãŸããããã®ãšããµãŒãã¹ã¿ææã®é»æ°æµæ
å€å€åãæå°éã«ããããããã é»æ¥µå±€ãããã®ãããªãæ°çžãããã¯æ¶²çžæé·
èã§åœ¢æããæ¹æ³ãšããŠã¯ãé»è§£ã¡ãããç¡é»è§£
ã¡ãããèžçãã¹ããã¿ãªã³ã°ãã€ãªã³ãã¬ãŒã
ã€ã³ã°çã®åŸæ¥å ¬ç¥ã®æ¹æ³ã¯ããããå¯èœã§ãã
ããçç£æ§ãèèå質åçã®çç±ã«ãããèžçã«
ãã圢æããããšã奜ãŸããã èžçã«ããé»æ¥µå±€ã圢æããå Žåãèžçã®æ¹æ³
ã¯åŸæ¥å ¬ç¥ã®æ¹æ³ã«ããã°ããã ãŸããåŸè¿°ã®ããã«é»æ¥µå±€ç¬¬ïŒå±€ã圢æããå Ž
åã«ã¯ãé»æ¥µå±€åœ¢æåŸã«ãåŒ±é žçã§ãã®è¡šé¢ãè±
èæŽæµãããšã第ïŒå±€ã圢æããéã«ãæ¥çæ§ãª
ãŒããã¯æ§çã®ç¹ã§ãã奜ãŸããçµæãåŸãã ãã®ãããªé»æ¥µå±€ã®åãã¯éåžž0.05ã5ÎŒïœãã
ã奜ãŸããã¯0.3ã2.0ÎŒïœã§ããã 0.05ÎŒïœæªæºã§ã¯æ¬çºæã®å¹æããªãããŸãã
5ÎŒïœãè¶ ãããšçç£æ§ãäŸ¡æ Œã®ç¹ã§åé¡ãçã
ãããã§ããã ãã®ãããªå Žåãäžèšã®ãšããã奜ãŸããæ æ§
ã¯ããã®ãããªé»æ¥µå±€ã®äžã«é»æ¥µå±€ç¬¬ïŒå±€ã圢æ
ãããããªæ æ§ã§ããã ãã®æãå°æ¢ã¬ã©ã¹ããªãŒãäœãšã®ãã¬æ§çã®
ç¹ã§ãã奜ãŸããçµæãåŸãã æ¬çºæã®é»æ¥µå±€ç¬¬ïŒå±€ãšããŠã¯ãéåžžã®ãµãŒã
ã¹ã¿çŽ åã«çšããããé»æ¥µå±€ã¯ãããã䜿çšå¯èœ
ã§ããããç±èšåŒµçãé«æž©ã§ã®ä¿¡é Œæ§ãé»æ¥µå±€ãš
ã®æ¥çæ§çã®ç¹ã§ãäžèšã®ãã®ãçšããããšã奜
ãŸããã ãïŒã éå±åäœãŸãã¯åéã®æ°çžæé·èã èææãšããŠã¯ç¹ã«å¶éã¯ãªãããç¹ã«éãçœ
éããã©ãžãŠã ã®åäœãããã¯ãããã®ïŒçš®ä»¥äž
ãå«ãåéã奜ãŸããã ãããã®ãã®ãçšãããšããç¹ã«é«æž©ã§ã®ä¿¡é Œ
æ§ãçç£æ§çã®ç¹ã§ãã奜ãŸããçµæãåŸãã
ãã ãŸããéãéãçœéããã©ãžãŠã ã®åéãçšã
ãå Žåãéãéãçœéããã©ãžãŠã ã¯åéå šäœã®
50ïŒ ä»¥äžå«æãããããšã奜ãŸããã ãã®ãããªçµæã®é»æ¥µå±€ç¬¬ïŒå±€ã¯ãæ°çžæé·è
ã«ãã圢æãããããšã奜ãŸããããã®ãªãã§ã
ç¹ã«èžçã«ãã圢æãããããšã奜ãŸããã èžçã«ãããã®ãããªçµæã®é»æ¥µå±€ç¬¬ïŒå±€ã圢
æããæ¹æ³ã¯ãåŸæ¥å ¬ç¥ã®æ¹æ³ã«ããã°ãããäŸ
ãã°äœåå§ã¯ïŒÃ10-3ãïŒÃ10-4PaçšåºŠãšããã°
ããã ãŸãããã®ãããªå Žåã®é»æ¥µå±€ç¬¬ïŒå±€ã®åã
ã¯ãéåžž0.05ã5ÎŒïœãã奜ãŸããã¯0.3ã2.0ÎŒïœã§
ããã0.05ÎŒïœæªæºã§ã¯æ¬çºæã®å¹æããªãããŸ
ãã5ÎŒïœãè¶ ãããšçç£æ§ãäŸ¡æ Œã®ç¹ã§åé¡ã
çããããã§ããã ãïŒã ã¡ããè ã¡ããèææãšããŠã¯ç¹ã«å¶éã¯ãªãããç¹
ã«ãéãçœéãŸãã¯ãã©ãžãŠã ãŸãã¯ããã±ã«ã®
ãã¡ã®ïŒçš®ä»¥äžãç¹ã«éãçœéãŸãã¯ãã©ãžãŠã
ãå«ãããšã奜ãŸããã ãããã®ãã®ãçšãããšããç¹ã«é«æž©ã§ã®ä¿¡é Œ
æ§ãäŸ¡æ Œçã®ç¹ã§ãã奜ãŸããçµæãåŸãããã ã¡ããã®æ¹æ³ãšããŠã¯ãé»è§£ã¡ãããç¡é»è§£ã¡
ããçãåŸæ¥å ¬ç¥ã®æ¹æ³ããããã䜿çšå¯èœã§ã
ãããçŽåºŠãå¯çæ§ã®ç¹ã§ãé»è§£ã¡ããã«ãŠè¡ãª
ãããšã奜ãŸããã é»è§£ã¡ãããçšããå Žåãé»è§£æµŽçµæãçšãã
é»æ¥µãé»è§£æ§œãäœæ¥æž©åºŠçã¯ãå ¬ç¥ã®çš®ã ã®ãã®
ãçšããã°ããããŸããé»æµå¯åºŠã¯0.5ã2.0AïŒ
ïœm2çšåºŠãšããã°ããã ãªããäžèšåéå±ã¯éåžžåäœã§å«æããããã
å Žåã«ãã€ãŠã¯ãã®ïŒçš®ãŸãã¯ïŒçš®ä»¥äžãç·èš
50wtïŒ ä»¥äžå«æããããã®ã§ãã€ãŠãããã ãŸãããã®ãããªå Žåã®é»æ¥µå±€ç¬¬ïŒå±€ã®åãã¯
éåžž0.5ã5ÎŒïœã奜ãŸããã¯ïŒã3ÎŒïœã§ããã 0.5ÎŒïœæªæºã§ã¯æ¬çºæã®å¹æããªãããŸãã5ÎŒ
ïœãè¶ ãããšçç£æ§ãäŸ¡æ Œã®ç¹ã§åé¡ãçããã
ãã§ããã ãïŒã éå±ç® éå±ç®ææãšããŠã¯ãç¹ã«å¶éã¯ãªãããç¹ã«
ããã±ã«ãéãã¿ã³ã°ã¹ãã³ããã¿ã³ãã¢ãªãã
ã³ãããã¯éã®åäœããããã¯ãããã®ãã¡ã®ïŒ
皮以äžãå«ãåéã奜ãŸããã ãããã®ãã®ãçšãããšããç¹ã«é«æž©ã§ã®ä¿¡é Œ
æ§çã®ç¹ã§ãã奜ãŸããçµæãåŸãããã ãã®å Žåãéå±ç®ãšããŠã¯ã第ïŒã«ããã±ã«ã
ãã³éãå«æãããã®ã奜ãŸãããããã±ã«ãã
ã³éãå«æããåéãšããŠã¯ãNi20ã60wtïŒ ã
Fe40ã80wtïŒ ã®ãã®ã奜ãŸããããããã«ã¯
20wtïŒ ä»¥äžã®ç¯å²ã§ã³ãã«ãããã³ã¬ã³çãå«
æãããŠããŠãããã ãããã®ãã¡ã§ã¯ãç±èšåŒµä¿æ°ã®ç¹ã§ã29wt
ïŒ Niâ17wtïŒ Coâæ®Feã®çµæãæããã³ããŒã«
åéããã³ã41ã43wtïŒ Niâæ®Feã®çµæãæã
ã42ã¢ãã€åéãçšããããšã奜ãŸããã ãŸããéå±ç®ãšããŠã¯ãã¿ã³ã°ã¹ãã³ãã¢ãªã
ãã³ããã¿ã³ãããã¯éã奜ãŸããããããã
ã¯ãéå±åäœã§ãã€ãŠãããããã®ãã¡ã®ïŒçš®ä»¥
äžã50wtïŒ ä»¥äžå«ãåéã§ãã€ãŠãããã ãã®ãããªéå±ã®éå±ç®ãçšããŠé»æ¥µå±€ç¬¬ïŒå±€
ã圢æããæ¹æ³ãšããŠã¯ãåŸæ¥å ¬ç¥ã®æ¹æ³ã¯ãã
ãã䜿çšå¯èœã§ãããäŸãã°éãçœéããã©ãžãŠ
ã ãé çãçšããŠããŠä»ãçãè¡ãªãã°ãããã
ã®å ŽåãããŠä»ãã®æ¹æ³ãæ¡ä»¶ã¯ç空äžãããä»
枩床ã1000ã1200âã«ãŠå§çããçã®åŸæ¥å ¬ç¥ã®
æ¹æ³ã§ããã ãŸãããã®ãããªå Žåã®é»æ¥µå±€ç¬¬ïŒå±€ã®åãã¯
éåžžïŒã200ÎŒïœã奜ãŸããã¯20ã50ÎŒïœã§ããã 5ÎŒïœæªæºã§ã¯çç£æ§ãæªãããŸãã50ÎŒïœãè¶
ãããšäŸ¡æ Œã圢ç¶ã®ç¹ã§åé¡ãšãªãããã§ããã ãïŒã 溶å°è 溶å°èææãšããŠã¯ãç¹ã«å¶éã¯ãªãããç¹ã«
ããã±ã«ããã³éãå«æããåéããŸãã¯ã¢ãªã
ãã³ãããã¯ã¿ã³ã°ã¹ãã³ãªãããã®åéã奜ãŸ
ããã詳现ã¯åèšããéãã§ããã ãããã®ãã®ãçšãããšããç¹ã«é«æž©ã§ã®ä¿¡é Œ
æ§ãçç£æ§çã®ç¹ã§ãã奜ãŸããçµæãåŸãã
ãã ããã±ã«ããã³éãå«æããåéãšããŠã¯ãå
èšãïŒãã«èšè¿°ãããã®ãçšããããšã奜ãŸã
ãã ãŸãããã®å Žåã«ãããŠã¯ãã¢ãªããã³ãã¿ã³
ã°ã¹ãã³ããããã¯ã¢ãªããã³ããã³ïŒãŸãã¯ã¿
ã³ã°ã¹ãã³ãå«æããåéã奜é©ã«çšããããã
åéã®å Žåãã¢ãªããã³ããã³ïŒãŸãã¯ã¿ã³ã°ã¹
ãã³ã50wtïŒ ä»¥äžå«æããããšã奜ãŸããã 溶å°ãšããŠã¯ã溶å°è圢æã®ãšããã§æããæ¹
æ³ããšããã¬ã¹ãã¬ãŒã ãé»æ°ã¢ãŒã¯ããã©ãºã
çãç±æºãšããçš®ã ã®æ¹æ³ãå¯èœã§ãããããã®
äžã§ãç¹ã«å¯çæ§ãèåã³ã³ãããŒã«ã®ç¹ã§ãã©
ãºã溶å°ãçšããããšã奜ãŸããã 第ïŒã®å¥œãŸããæ æ§ã¯ãé»æ¥µå±€ïŒïŒïŒïŒïŒãã
å°é»æ§ããŒã¹ããçŒæããããããåèæ³ã«ãã
圢æããããã®ã§ããããã®ãšãå®è³ªçã«ã¬ã©ã¹
ãå«æããªããã®ãšããã®ãããããã®ãããªå°
é»æ§ããŒã¹ããšããŠäžè¬ã«åžè²©ãããŠãããã®
ã«ãããªããã¬ã¹ã¿ã€ãå°é»æ§ããŒã¹ããããã
ãã®å°é»æ§ããŒã¹ãã¯ãéåžžãå°é»æ§ææããã€
ã³ãããã³æº¶å€ãããã«å¥œãŸããã¯é žåç©ãæ··å
ããŠäœè£œãããã å°é»æ§ææãšããŠã¯ãå ¬ç¥ã®å°é»æ§ç©è³ªãçšã
ãã°ãããAuïŒAgïŒPtïŒPdïŒïŒ·ïŒCuïŒNiïŒ
MoïŒAlïŒFeïŒTiïŒMnçããããã¯PtâAuïŒ
PdâAuïŒPtâPdâAuïŒPdâAgïŒPtâPdâ
AgïŒFeâNiâCoïŒFeâNiïŒMoâMnçã®åé
ãªã©ãããã䜿çšå¯èœã§ããã ãã®ãããªå°é»æ§ææãé žåç©ã¯ãéåžž0.1ã
5ÎŒïœçšåºŠã®ç²åŸã«ãŠçšããããšã奜ãŸããã 奜ãŸããæ æ§ãšããŠæ·»å ãããé žåç©ãšããŠ
ã¯ãTiO2ïŒCuOïŒCdOïŒMnOïŒCaOïŒZnOïŒ
Bi2O3ïŒV2O5ïŒNiOçã®å ¬ç¥ã®ãã®ãçšããã°ã
ãã ãã€ã³ããšããŠã¯ããšãã«ã»ã«ããŒã¹çã®å ¬ç¥
ã®ãã®ãçšããã°ããã 溶å€ãšããŠã¯ãããã«ã»ã«ããŒã¹ãããã«ã«ã«
ãããŒã«ã¢ã»ããŒãããã«ãããªãŒã«çã®å ¬ç¥ã®
ãã®ãçšããã°ãããããŒã¹ãç²åºŠã120ã
320aã»ïœã«ãªãããã«ããããšã奜ãŸããã ãªããé žåç©ã¯åºåœ¢åäž20wtïŒ ä»¥äžãç¹ã«0.05
ã10wtïŒ ã§ããããšã奜ãŸããã ããããå«æããå°é»æ§ããŒã¹ããããµãŒãã¹
ã¿ãããã«ã¹ã¯ãªãŒã³å°å·çã«ããå¡åžããçŒæ
ããŠé»æ¥µå±€ãšãããçŒæ枩床ã¯500ã1400âãçŒ
ææéã¯0.5ãïŒæéçšåºŠã§ããããšã奜ãŸããã ãŸããçŒæé°å²æ°ã¯ãé žçŽ ååšé°å²æ°ã§ãã€ãŠ
ããäžæŽ»æ§ã¬ã¹é°å²æ°ã§ãã€ãŠãããã ãã®ããã«ããŠåœ¢æãããé»æ¥µå±€ã¯ãã¬ã©ã¹ã
å®è³ªçã«å«æããªãããããµãŒãã¹ã¿ãããäžã®
çåç©ãšåå¿ããŠçºæ³¡ããããšããªããé»æ¥µå±€ãš
ãµãŒãã¹ã¿ããããšã®å¯çæ§ãæ¥çæ§ãè¯å¥œã§ã
ãããã®ä»ãã¢ã«ã³ãã·ããã¡ã¿ããªãŒã¬ããã¯
çã®åçš®ææ©éå±ååç©ããææ©éå±é¯äœçã®æ
æ©éå±ãçšããããŒã¹ããå¯èœã§ããããªããã¬
ã©ã¹ãå®è³ªçã«å«æããªãããã«ã¯ãã¬ã©ã¹åã
ç¹ã«SiO2ïŒB2O3ïŒPbOïŒP2O5ãåºåœ¢åäž1wtïŒ
以äžã奜ãŸããã¯ã0.3wtïŒ ä»¥äžãç¹ã«å¥œãŸããã ãã®ããã«ããŠåœ¢æãããé»æ¥µå±€ïŒïŒïŒïŒïŒã®
åãã¯ãéåžžïŒã200ÎŒïœãç¹ã«10ã50ÎŒïœããã
奜ãŸããã¯15ã30ÎŒïœã§ããã5ÎŒïœæªæºã§ã¯çç£
æ§ã®ç¹ã§äžå©ã§ããã200ÎŒïœä»¥äžã§ã¯æå³ããª
ãã ãµãŒãã¹ã¿çŽ åïŒã®ãªãŒãäœïŒïŒïŒïŒïŒãšããŠ
çšãããªãŒãç·ã¯ãåŸæ¥å ¬ç¥ã®ãã®ã¯ãããã䜿
çšå¯èœã§ããããç±èšåŒµçãã³ã¹ãçã®ç¹ã§ã
29wtïŒ Niâ17wtïŒ Coâæ®Feã®çµæãæããã³
ããŒã«åéããã³41ã43wtïŒ Niâæ®Feã®çµæã
æãã42ã¢ãã€åéãçšããããšã奜ãŸããã ã³ããŒã«åéã¯ç±èšåŒµç¹æ§ã硬質ã¬ã©ã¹ã®ãã
ãšããäžèŽããŠããã硬質ã¬ã©ã¹ãã»ã©ããã¯ã®
ããŒã¡ããã¯ã·ãŒã«æãšããŠçšããããåéã§ã
ãããŸãã42ã¢ãã€åéã¯ç¡¬è³ªãŸãã¯è»è³ªã¬ã©ã¹
å°çææãšããŠãã©ã³ãžã¹ã¿ããã€ãªãŒãã®ãªãŒ
ãç·ãICã®ãªãŒããã¬ãŒã ããªãŒãã¹ã€ããçš
ã®ãªãŒããªã©ãçš®ã ã®ããŒã¡ããã¯ã·ãŒã«ãšããŠ
䜿çšãããŠããã ãã®ãããªãªãŒãç·ã¯ããã®è¡šé¢ãNiãã€ã
çã®èç±èã§è¢«èŠãããšãã¬ã©ã¹å°æ¢æã®é žåé²
æ¢ãèç±æ§ã®ç¹ã§ããäžå±€å¥œãŸããçµæãåŸãã 次ã«ããã®ãããªãªãŒãç·ãé»æ¥µå±€ã«æ¥ç¶ãã
æ¹æ³ãšããŠã¯ã第ïŒå³ã«ç€ºãããã«éããŒã¹ãç
ã®å°é»æ§ããŒã¹ãïŒïŒïŒïŒïŒãçšããŠé»æ°çæ¥è§Š
ãããæ¥ç¶ããæ¹æ³ããã©ã¬ã«ã®ã€ãã溶æ¥ã«ã
ãæ¹æ³ãè¶ é³æ³¢ãã³ããŒã«ããæ¹æ³çãçš®ã ã®æ¹
æ³ãå¯èœã§ããã å°é»æ§ããŒã¹ããçšããå Žåã¯ã補é ã容æãš
ãªããçŽ åãžã®ãã¡ãŒãžã®å°ããç¹ã§å¥œãŸãã
ãããã®å ŽåãããŒã¹ãã¯å°é»æ§ç²åãšæº¶å€ãšå¿
èŠã«å¿ããã€ã³ããšãå«æããäžèšãšåæ§ãªçç±
ããã¬ã©ã¹åãå«æããªãã¬ã©ã¹ããªããã¬ã¹ã®
ãã®ãçšããã®ã奜ãŸããã ãªããå°é»æ§ããŒã¹ãã¯ãåèšã®é»æ¥µå±€ã«çšã
ããã®ãšåãããŒã¹ããçšããŠãããã ãŸããçŒæã¯ãé»æ¥µå±€ãåèæ³ã«ãã圢æãã
å Žåãé»æ¥µå±€ã®çŒæãšåæã«è¡ãªã€ãŠãããã ãŸããã¹ããã溶æ¥ã®æ¹æ³ãšããŠã¯ããªãŒãç·
ã溶æ¥ããã®ã«å åãªæéã®éãèç枩床ã«ãã
ããã«é»æµãæµãæ¹æ³ãããµãŒãã¹ã¿çŽ åå šäœã
çã®äžã«çœ®ããèç枩床ã«ããæ¹æ³çãå ¬ç¥ã®æ¹
æ³ã«ããã°ãããã¹ããã溶æ¥ã®æ¹æ³ã¯ãç¹å ¬æ
42â19061å·å ¬å ±çã«è©³è¿°ãããŠããã ãŸããè¶ é³æ³¢ãã³ããŒãšããŠã¯ãåŸæ¥å ¬ç¥ã®æ¹
æ³ã«ããã°ããã ãªãããªãŒããèšããã«ãµãŒãã¹ã¿çŽ åãæ§æ
ããŠãããã æ¬çºæã®ã¬ã©ã¹å°æ¢åãµãŒãã¹ã¿çŽ åã«çšãã
ã¬ã©ã¹ïŒãšããŠã¯ãã¬ã©ã¹è»¢ç§»æž©åºŠã奜ãŸããã¯
600â以äžããã奜ãŸããã¯600ã700âããŸãã
äœæ¥æž©åºŠã1000â以äžããã奜ãŸããã¯800ã
1000âã®ã¬ã©ã¹ã§ããã ã¬ã©ã¹ïŒã®çµæãšããŠã¯ãã¬ã©ã¹è»¢ç§»æž©åºŠãã
ã³äœæ¥æž©åºŠãäžèšã®ç¯å²å ã®ãã®ã§ããã°ç¹ã«å¶
éã¯ãªãããã¢ã«ã«ãªåé¡éå±ãå«æããããŠã±
ã€é žã¬ã©ã¹ãçšããããšã奜ãŸããã ã¢ã«ã«ãªåé¡éå±ãå«æããããŠã±ã€é žã¬ã©ã¹
ãçšããå Žåããã®çµæãšããŠã¯ãSiO2ã®å«æ
éã40ã85wtïŒ ã奜ãŸããã¯40ã70wtïŒ ãB2O3
ã®å«æéãïŒã40wtïŒ ã奜ãŸããã¯10ã40wtïŒ ã
ããã«å¥œãŸããã¯21ã40wtïŒ ã®ãã®ã奜ãŸããã
ãŸããã¢ã«ã«ãªåé¡éå±ã®å«æéã¯ãïŒã30wt
ïŒ ã§ããããšã奜ãŸããããã®ãããªã¬ã©ã¹äžã«
ã¯ãAl2O3ãå«æãããŠããŠãããããã®å Žåã
Al2O3ã®å«æéã¯5wtïŒ ä»¥äžã§ããããšã奜ãŸã
ãã ãªãããããã®ã¬ã©ã¹ã¯ãé«æž©ã§ã®çµ¶çžæµæå€
ã®äœäžã®åå ãšãªããããNaïŒïŒ«çã®ã¢ã«ã«ãª
æåã1wtïŒ ä»¥äžã§ããããšã奜ãŸããã ãã®ãããªãµãŒãã¹ã¿çŽ åã®è£œé æ¹æ³ã®äžäŸã
以äžã«ç°¡åã«èª¬æããã äŸãã°ãçŽåŸïŒã€ã³ãçšåºŠãåã0.5mmçšåºŠã®
åèšã®çŒçµäœã®ãŠãšããäœè£œããããã®ãŠãšãã®
äž¡é¢ã«ãé»æ¥µå±€ã圢æããã ãã®ããã«åœ¢æããããŠãšããããã€ã·ã³ã°ãœ
ãŒçã«ããäžèŸº0.75mmçšåºŠã®æ£æ¹åœ¢ã«åæããã
ããåããã ãã®ããã«ããŠåŸããããããã«ãçŽåŸ0.2ã
0.5mmãé·ã20ã100mmçšåºŠã®ãªãŒãç·ã奜ãŸãã
ã¯æ質ãã³ããŒã«åéãŸãã¯42ã¢ãã€åéã®ãªãŒ
ãç·ããåèšã®æ¹æ³ãçšããŠæ¥ç¶ããã ãã®ãããªãããããçŽåŸ1.5ã2.5mmçšåºŠãé·
ãïŒmmçšåºŠã®ã¬ã©ã¹ç®¡ã奜ãŸããã¯ããŠã±ã€é žã¬
ã©ã¹è£œã®ã¬ã©ã¹ç®¡ã«æ¿å ¥ãã750ã900âçšåºŠã®æž©
床ã«ãŠArã¬ã¹é°å²æ°äžçã®äžæŽ»æ§é°å²æ°äžã«ãŠ
å°æ¢ããã°ããã ãã®åŸå¿ èŠã«å¿ãã500ã750âã10ã100æé
çšåºŠãšãŒãžã³ã°ãè¡ãã ãŸããæ¬çºæã®ãµãŒãã¹ã¿ææã¯ããµãŒãã¹ã¿
ææã«å°é»äœææãçŽæ¥ãŸãã¯ä»åšå±€ãä»ããŠå
å§äžå ç±ããŠäžäœåãããããããäžäœåã®ãµãŒ
ãã¹ã¿çŽ åã®ãµãŒãã¹ã¿ãããã«ãé©çšã§ããã æ¬çºæã®ãµãŒãã¹ã¿ææãçšããäžäœåã®ãµãŒ
ãã¹ã¿çŽ åãšããŠã¯ããµãŒãã¹ã¿ææã«å°é»äœæ
æãçŽæ¥ãŸãã¯ä»åšå±€ãä»ããŠå å§äžå ç±ããŠäž
äœåããããããäžäœåã®ãã®ãæãããããã
ãå ·äœçã«ã¯ããã®ãããªãµãŒãã¹ã¿çŽ åïŒïŒ
ã¯ã第ïŒïœå³ã第ïŒïœå³ã«ç€ºãããããã«ãµãŒã
ã¹ã¿ãããïŒïŒãšéåžžïŒå¯Ÿã®å°é»äœïŒïŒïŒïŒïŒã®
ä»ã絶çžäœïŒïŒç¬¬ïŒïœå³ã第ïŒïœå³ïŒãé«èç¹é
å±ç³»ã®ä»åšå±€ïŒïŒç¬¬ïŒïœå³ïŒãªã©ãå å§äžå ç±ã
ãŠäžäœåãããã®ã§ããã ãã®ãããªãµãŒãã¹ã¿çŽ åãšããŠã¯ãç¹é¡æ61
â282256å·ãå61â282257å·ãå61â286533å·ã
å61â286534å·ãªã©ã«èšèŒã®ãã®ãæããããã ããã«å ·äœçã«èª¬æãããªãã°ã第ïŒïœå³ã«ç€º
ãæ§é ã§ã¯ããµãŒãã¹ã¿çŽ åïŒïŒã¯ãäŸãã°å€åœ¢
è§æ±ç¶ã®åœ¢ç¶ã§ããã絶çžäœïŒã®å 端ã«ãµãŒãã¹
ã¿ãããïŒïŒãæãããµãŒãã¹ã¿ãããïŒïŒãã
ã³çµ¶çžäœïŒã®äž¡åŽé¢ãèŠãããã«å°é»äœïŒïŒãæ
ãããã®ã§ããã ãã®å Žåãå°é»äœïŒïŒïŒïŒïŒããã³çµ¶çžäœïŒã¯
ãµãŒãã¹ã¿ãããïŒïŒã®åŸç«¯ã«æ¥ç¶ãããããªæ§
é ãšããããšãã§ããã ãŸã第ïŒïœå³ã«ç€ºãããã«ã第ïŒïœå³ã«ç€ºãæ§
é ã«ãŠäžäœååŸã絶çžäœïŒãé€å»ããæ§é ãããª
ãã¡ããµãŒãã¹ã¿ãããïŒïŒã®åŽé¢ãèŠãããã«
ïŒå¯Ÿã®å°é»äœïŒïŒïŒïŒïŒã®ã¿ãæããæ§é ãšããŠ
ãããã ãã®å Žåå°é»äœïŒïŒïŒïŒïŒã¯ããµãŒãã¹ã¿ãã
ãïŒïŒã®åŸç«¯ã«æ¥ç¶ãããããªæ§é ãšããããšã
ã§ããã ãŸãã第ïŒïœå³ã«ç€ºãããã«ãäžèšã®ãããªæ
æ§ã«ãããŠããµãŒãã¹ã¿ãããïŒïŒãšå°é»äœïŒ
ïŒïŒïŒïŒãšã®éã«é«èç¹éå±ç³»ã®ä»åšå±€ïŒãèšã
ãæ§é ãšããŠãããã ãŸãã第ïŒïœå³ã«ç€ºããããªç©å±€æ§é ã®å€çŽ å
åãšããŠãããã äžèšã«ãããŠäŸç€ºãããµãŒãã¹ã¿çŽ åã«äœ¿çšã
ã絶çžäœææãšããŠã¯ãæ¬çºæã®ãµãŒãã¹ã¿ææ
ããé«æµæã®ææã§ããã°ããããµãŒãã¹ã¿ææ
ã®æµæå€ããã102ã1010åçšåºŠã奜ãŸããã¯108
ã1010åçšåºŠé«ããã®ã§ããã°ãããå ·äœçã«ã¯
Al2O3ïŒMgOïŒSi3N4ïŒAlNïŒBNãªã©ãæãã
ããã 絶çžäœãé€å»ããæ§é ãšããå Žåã¯ãæåã«èš
ãã絶çžäœãé€å»ããããšã«ãªããããã®ç¹ãã
ã¿ãŠBNçã奜é©ã§ããã å°é»äœææãšããŠã¯ãå ¬ç¥ã®åçš®å°é»æ§ç¡æ©æ
æãªã©ãæããããå ·äœçã«ã¯ãããã®ãããã¯
äœçãçšããŠäžäœåããã°ããããã®ãããªãã
ãã¯äœãšããŠã¯åçš®ã»ã©ããã¯ææçããããäŸ
ãã°ãSiCâTiCç³»ãSiCâCrBç³»ãZrNç³»ã
MoSiïŒLaCrO3ïŒAl2O3âTiCïŒ Al2O3âCr3C2ïŒ Al2O3âTiNïŒAl2O3âTiB2çãæããããã äžèšã®ãªãã§ããAl2O3âTiCïŒ Al2O3âCr3C2ïŒ Al2O3âTiNïŒAl2O3âTiB2ã奜ãŸããã æ¬çºæã«ãããŠã¯ãµãŒãã¹ã¿ãããïŒïŒãšå°é»
äœïŒïŒïŒïŒïŒãšã®éã®é«èç¹éå±ç³»ã®ä»åšå±€ãèš
ããŠãããããã®å Žåã®åãã¯0.01ã100ÎŒïœçšåºŠ
ãšããã ä»åšãããé«èç¹éå±ç³»ã®ä»åšå±€ãæ§æããæ
æãšããŠã¯ãèç¹800ã4000âçšåºŠãæµæããµãŒ
ãã¹ã¿ææã®10-2ã10-10çšåºŠã®ãã®ã奜ãŸããã ãã®ãããªãã®ãšããŠã¯ãAuïŒPtïŒPdïŒ
AuïŒPdïŒAgïŒPdïŒPtïŒPdïŒMoïŒTiïŒïŒ·ïŒTiïŒ
MoïŒïŒ·ïŒTiçã®åäžéå±ãŸãã¯åéãªã©ãã
ãã æ¬çºæã®ãµãŒãã¹ã¿çŽ åã¯ãåè¿°ã®ããã«å å§
äžã«ãŠå ç±ããŠåŸãããã äŸãã°ã第ïŒïœå³ã«ç€ºãæ æ§ã§ã¯ããŸãããµãŒ
ãã¹ã¿ææã絶çžäœææããã³å°é»äœææã«ã€ã
ãŠãããããã»ã©ããã¯ææã«ãã€ãŠã¯çŒçµãæœ
ããæå®ã®å€§ããã®ã·ãŒãç¶ã®ãããã¯äœãäœè£œ
ããã 次ãã§ç¬¬ïŒïœ å³ã«ç€ºãããã«ããµãŒãã¹ã¿ææ
ïŒïŒïŒã®äž¡åŽé¢ã«æ¥ããŠçµ¶çžäœææïŒïŒïŒïŒïŒã
é ãããã®äžé¢ãšäžé¢ã«æ¥ããŠããããå°é»äœæ
æïŒïŒïŒïŒïŒïŒïŒãéããããããå å§äžå ç±
ãããã®åŸç¬¬ïŒïœå³ã«ç€ºãããã«ææã®å€§ããã«
åæããæ¹æ³ãªã©ãæããããã å³ç€ºäŸã§ã¯ããµãŒãã¹ã¿ææãšçµ¶çžäœææãšã®
åãã¯åãã«ããŠããããææãšãããµãŒãã¹ã¿
çŽ åã®åœ¢ç¶ã«ããããŠãäºãäœè£œããã·ãŒãç¶ã®
ãã®ã®åœ¢ç¶ãé©å®æ±ºå®ããã°ããã ãã®ãããªæ¹æ³ã«ããã°ãåæã«50ãæ°ååçš
床ã®ãµãŒãã¹ã¿çŽ åã®äœè£œãå¯èœãšãªãã 第ïŒïœå³ã«ç€ºãæ æ§ã®ãã®ãåŸãã«ã¯äŸãã°äž
èšãšåæ§ã«ãããåããåŸãç åçã«ãã絶çžäœ
ææïŒïŒãé€å»ããã°ããã ãŸãã第ïŒïœå³ã«ç€ºãæ æ§ã®ãã®ãåŸãã«ã¯ã
ãµãŒãã¹ã¿ææïŒïŒïŒãšå°é»äœææïŒïŒïŒïŒïŒïŒ
ïŒãšã®éã®é«èç¹éå±ææã®ã·ãŒãã被èãä»åš
ããã以å€ã¯ç¬¬ïŒïœå³ã«ç€ºãæ æ§ãšåæ§ã®è£œæ³ã
ãšãã°ããã 第ïŒïœå³ã«ç€ºãããã«ç©å±€æ§é äœãåŸãã«ã¯ã
åææãææã®æ®µæ°ã«éãã以å€ã¯ç¬¬ïŒïœå³ã«ç€º
ãæ æ§ãšåæ§ã®è£œæ³ããšãã°ããã å å§å ç±ã¯ãå ·äœçã«ã¯ãããããã¬ã¹
ïŒHPïŒæ³ãç±ééæ°Žå§ïŒHIPïŒæ³ã«ããã°ããã HPæ³ã§ã¯ã倧æ°äžçã®é žçŽ é°å²æ°äžãããã
ã¯ç空ãArïŒN2çã®äžæŽ»æ§é°å²æ°äžã§ã50ã
300KgïŒcm2ã®å å§äžãåææã®çŒçµæž©åºŠæªæºãç¹
ã«750ã1700âã®æž©åºŠã§ã0.2ãïŒæéçšåºŠå ç±ã
ãã ãã®ãããªæ¡ä»¶ãšããã®ã¯ã50KgïŒcm2æªæºã§ã¯
æ¥åãäžååãšãªãã300KgïŒcm2ãããããšãçš
ããæŒãåã®æ¶èãæ¿ããããã®æ質 éžå®ã«åº
é£ããçããçç£æ§ãæªåããããã§ããããŸã
750âæªæºãšãªããšãæ¥åãäžååãšãªã1700â
ãããããšããµãŒãã¹ã¿ææã®ç¹æ§ïŒæµæå€çïŒ
ã®ãã©ãããæ¥æ¿ã«å¢å€§ããããã§ããã ãŸããHIPæ³ã§ã¯ãArçã®äžæŽ»æ§é°å²æ°äžã§
50ã1500KgïŒcm2ã®å å§äžãåææã®çŒçµæž©åºŠæª
æºãç¹ã«700ã1400âã®æž©åºŠã§0.2ãïŒæéå ç±ã
ãã ãã®ãããªæ¡ä»¶ãšããã®ã¯ã50KgïŒcm2æªæºã§ã¯
æ¥åãäžååãšãªãã1500KgïŒcm2ãããããšææ
éã®çžäºæ¡æ£ã®ã³ã³ãããŒã«ãå°é£ãšãªããäœæ¥
æ§ãæªããªãããã§ããã700âæªæºã§ã¯æ¥åã
äžååãšãªã1400âãããããšããµãŒãã¹ã¿ææ
ã®ç¹æ§ã®ãã©ãããæ¥æ¿ã«å¢å€§ããããã§ããã æ¬çºæã«ãããŠã¯ããã®ãããªïŒè»žæ¹åïŒHIP
æ³ïŒãããã¯ïŒè»žæ¹åïŒHIPæ³ïŒã«å å§äžãå ç±
ããããšã«ãããµãŒãã¹ã¿ææãšïŒå¯Ÿã®å°é»äœæ
æããçžäºæ¡æ£ã«ãã€ãŠåŒ·åºã«æ¥åãããããšã
ã§ããã ãã®ãããªæ¡æ£ãªããåå¿å±€ã¯æ°ãæ°10ÎŒïœçš
床ã®åããšããããšã奜ãŸããã ãã®ãããªæ¥åã«éããŠã¯ããµãŒãã¹ã¿ææãš
å°é»äœææãšã®ç±èšåŒµä¿æ°ãäºãã«è¿äŒŒããŠãã
ããšãå¿ èŠã§ãããå å§ãå ç±ãé°å²æ°çãåèš
ã®ããã«å¶åŸ¡ããããšã«ããããµãŒãã¹ã¿ææãš
å°é»äœææã®çžäºæ¡æ£ãå³ããã®ã§ããã æ¬çºæã«ãããŠã¯ã第ïŒïœãïŒïœå³ã«ç€ºããã
ã«ãµãŒãã¹ã¿çŽ åïŒïŒã«ä¿è·èïŒã圢æããããš
ã奜ãŸããããã®å Žåãä¿è·èãšããŠãŸã«ãŒã²ã«
ã³ãŒãçã®èèã圢æãããããšã奜ãŸããã å ·äœçã«ã¯ãéå±ã¢ã«ã³ãã·ãïŒã·ãªã³ã³ã¢ã«
ã³ãã·ããã¢ã«ãããŠã ã¢ã«ã³ãã·ãããã¿ã³ã¢
ã«ã³ãã·ãããžã«ã³ããŠã ã¢ã«ã³ãã·ãçïŒãšæº¶
åªïŒã€ãœãããã«ã¢ã«ã³ãŒã«çïŒãšãã¢ã«æ¯ã§
ïŒïŒïŒã®å²åã§å ããããã«å¿ èŠã«å¿ããŠå®å®å
å€ãå ããŠæº¶æ¶²ã調補ãããã®æº¶æ¶²ã«ãå€éšé»æ¥µ
éšåïŒå°é»äœã®ãµãŒãã¹ã¿ãšå察åŽæ¹åã®äžéš
åïŒããã¹ã¯ãããµãŒãã¹ã¿çŽ åããã€ããã³ã°
ãã宀枩ã§çžå¯Ÿæ¹¿åºŠ60ïŒ ä»¥äžã®æ¡ä»¶äžä¹Ÿç¥ããã
ãã®åŸçŒæããããšã«ãã圢æããããçŒæã¯ã
åžžå§ã§500âçšåºŠã§10åéçšåºŠè¡ãã°ããã ãŸããèåã®å¶åŸ¡ã¯ããã€ããã³ã°ããã³çŒæ
ã®æäœã®åæ°ãå¢æžãããããšã«ããè¡ãã°ã
ãã ãã®ããã«èèã圢æãããããšã«ãããèç±
æ§ã«åªãããµãŒãã¹ã¿çŽ åãšããããšãã§ããã ãã®ä»ãåçš®ä¿è·èã圢æããããšãã§ããã ãªããä¿è·èã圢æããªãé åã¯ïŒã10mmçšåºŠ
ã§ååã§ããã ãŸããªãŒãç·ãåºå®ããã«ã¯ãäžèšä¿è·èã圢
æãããŠããªãé åã«ãŠãããä»ãçã§è¡ãã°ã
ãã æ¬çºæã®ãµãŒãã¹ã¿ææãäžèšã®ãããªããã
ãäžäœåã®ãµãŒãã¹ã¿çŽ åã«é©çšããã«éããŠ
ã¯ãäžè¿°ãããããªæ æ§ã«å¿ ãããéå®ãããã
å¿ èŠã«å¿ããåŸæ¥ãã䜿çšãããŠãããµãŒãã¹ã¿
ãããã«ãªãŒãç·ãåèšããïŒç¹éæ60â37101
å·çïŒããåæ§æææã®çææãçŒçµã«ããäžäœ
åããããšïŒç¹éæ54â19599å·ãå53â33155
å·ãå60â37101å·ãå60â49607å·çïŒãå¯èœã§
ããã çºæã®å ·äœçäœçšå¹æ æ¬çºæã®ãµãŒãã¹ã¿ææã¯ãé«æž©ãç¹ã«400ã
800âã®æž©åºŠã§äœ¿çšããŠãå®å®æ§ãæããããŸã
å€ãããªãäœãããããšãã§ããããããµãŒã
ã¹ã¿ã®æž©åºŠä¿æ°ãå°ãããé©çšå¯èœãªæž©åºŠç¯å²ã
åºãããããšãã§ããã ããã«ãçµææ¯ãšæµæçãšã®é¢ä¿ã調ã¹ããšã
æµæçã®å€åãæ¥å³»ã§ã¯ãªããçµææ¯ãå€åãã
ãããšã«ããæµæã®ã³ã³ãããŒã«ãå¯èœãšãªãã
ãã®ããç®æšãšããæµæåã®çµæåãåºãããé
ç£æ§ããã³å質ãåäžããã ãã®ãããªãµãŒãã¹ã¿ææãé©çšããã¬ã©ã¹å°
æ¢åã®ãµãŒãã¹ã¿çŽ åã«é©çšãããšãã«ã¯ãçºæ³¡
ãå°ãªããšããå©ç¹ãæããããŸããä»ã®ææãš
å å§äžå ç±ããŠæ¥åããŠäžäœåãããããããäž
äœåã®ãµãŒãã¹ã¿çŽ åã圢æããã°ã寞æ³ç²ŸåºŠã
è¯å¥œã§ãçææãçŒçµã«ããäžäœåãããšãã®ã
ããªå¯žæ³å€åãç¹æ§ã®ãã©ãããããããŠå°ãªã
ãªãã çºæã®å ·äœçå®æœäŸ 以äžãæ¬çºæã®å ·äœçå®æœäŸã瀺ããæ¬çºæã
詳现ã«èª¬æããã å®æœæœ ïŒ æ¬çºæã®è©Šæã®äœè£œããã³æž¬å® å¹³åç²åŸ1.2ÎŒïœã®Al2O3ïŒçŽåºŠ99.9wtïŒ ä»¥äžïŒã
å¹³åç²åŸ1.0ÎŒïœã®SiCïŒçŽåºŠ99.5wtïŒ ä»¥äžïŒãã
ã³ïŒãŸãã¯å¹³åç²åŸ1.2ÎŒïœã®B4CïŒçŽåºŠ98wtïŒ ä»¥
äžïŒããè¡šïŒã«ç€ºããããªå²åã§ç§€éããã¢ã»ã
ã³ãçšããŠããŒã«ãã«ã«ãŠ20æé湿åŒæ··åããã æ··åããã¹ã©ãªãŒã也ç¥é ç²ããå åŸ77mmã®é»
éåã«å å¡«ããããããAré°å²æ°ãŸãã¯ç空
ïŒ10-2TorrïŒäžã§çŒçµæž©åºŠ1300ã1700âããã¬ã¹
å§å200ã300KgïŒcm2ã§ããããã¬ã€çŒçµãè¡ã€
ãã åŸãããçŒçµäœã¯ïŒžç·åæã®çµæAl2O3ãšB4C
ããã³ïŒãŸãã¯SiCãšãã圢æãããŠããããšã
確èªãããããŸãäžéšã®ãµã³ãã«ã§ã¯ã°ã¬ã€ã³ç²
çã«ïŒ¢ããã³ïŒãŸãã¯Siã®é žåç©ã®ååšã確èªã
ããã å·åŽåŸãããããã®çŒçµäœãåããåãåºãã
ïŒ200ãã€ã€ã¢ã³ãç ¥ç³ã«ãŠå å·¥ãã0.75Ã0.75
Ã0.5mmã«ãããåããã ãããã®ãããåãããã®ã«ã€ããŠãæå®ã®æ¹
æ³ã§é»æ¥µä»ããè¡ã€ãŠã50âãš480âã«ãããæµ
æçÏïŒÎ©ã»cmïŒããã³ãµãŒãã¹ã¿å®æ°ïŒ¢ã枬å®
ããã 次ã«ç¬¬ïŒïœå³ã«ç€ºããããªãµãŒãã¹ã¿çŽ åãäœ
補ããã ãµãŒãã¹ã¿ææãšããŠäžèšãšåæ§ã«ããŠäœè£œã
ãè€åçŒçµäœïŒå·Ÿ65mmãé·ã1.6mmãåã0.5mmïŒã
å°é»äœææãšããŠTiCâAl2O3è€åçŒçµäœïŒå·Ÿ65
mmãé·ã130mmãåã0.3mmïŒããã³çµ¶çžäœææãš
ããŠAl2O3çŒçµäœïŒå·Ÿ65mmãé·ã64.2mmãåã0.5
mmïŒãçšããéããŠããããã¬ã¹æ³ã«ããå å§äž
å ç±ããæ¥åããïŒç¬¬ïŒïœ å³ïŒã ãã®å Žåãå ç±ã¯Aré°å²æ°äžã1300âã®æž©åºŠ
ã§ã150KgïŒcm2ã®å å§äžã30åè¡ã€ãã ãã®ããã«ããŠäœè£œããè€åçŒçµäœïŒå·Ÿ65mmã
é·ã130mmãåã1.1mmïŒãåããåãåºã宀枩ã«
æ»ããããã®åŸãäžäžé¢ãã©ããã³ã°ã«ããçŽ
20ÎŒïœå å·¥ããå€åšã¹ã©ã€ã·ã³ã°ãã·ã³ã«ããã
ã€ã€ã¢ã³ããã¬ãŒãã«ãŠãµãŒãã¹ã¿çŽ åãå·Ÿ0.75
mmãé·ã65mmãåã1.1mmïŒãµãŒãã¹ã¿ãããéš
åã®å€§ããïŒ0.75Ã0.75Ã0.5mmïŒå°é»äœã®åã
0.3mmãã«åæå å·¥ããïŒç¬¬ïŒïœå³ïŒãïŒæã®è€å
çŒçµäœãã100åã®ãµãŒãã¹ã¿çŽ åãåŸãããšã
ã§ããã ãšãŒãžã³ã°åŠçããåŸã®ãã®ããµãŒãã¹ã¿çŽ å
ãšããŠçšãã500ââ3000æéã§ã®æµæå€å
ãÎRïŒRoÃ100ïŒïŒ ïŒïŒRoåæå€ãÎRå€åéããæž¬å® ããã ãããã®çµæãè¡šïŒã«ç€ºãããªãè¡šäžã§ã¯ãã
ãããçŽ åã䟿å®äžåäžè©ŠæNoã«ãŠæ²èŒããŠã
ãã ãªããè¡šïŒã«ã¯SiCïŒAl2O3ã®äœç©æ¯ãšãçŒçµ
äœã®å¯åºŠã®çè«å¯åºŠã«å¯Ÿããå¯åºŠæ¯ïŒïŒ ïŒã瀺ã
ããã äœç©æ¯ã¯ãçŒçµäœã®è¡šé¢ãé¡é¢ç 磚ããŠããã®
é»åé¡åŸ®é¡åçããSiCïŒB4Cã®é¢ç©æ¯ãç®åºã
ããã®ã§ããã ãŸããè©ŠæïŒïŒïŒããã³è©ŠæïŒïŒïŒã«ã€ããŠæž©
床ïŒïŒŽïŒãšæµæçïŒÏïŒãšã®é¢ä¿ã第ïŒå³ããã³
第ïŒå³ã«ç€ºãã ãŸããè©ŠæïŒïŒïŒã«ã€ããŠã®éå±é¡åŸ®é¡åçã
第ïŒå³ïŒåç400åïŒããã³ç¬¬ïŒå³ïŒåç1000åïŒ
ã«ç€ºãã æ¯èŒã®è©Šæã®äœè£œããã³æž¬å® çµæãæ¬çºæå€ãšããæ¬çºæã®ãã®ãšåæ§ã«è©Š
æãäœè£œããåæ§ã«æž¬å®ããããã®çµæãè¡šïŒã«
瀺ãã ãŸããè©ŠæïŒïŒïŒã®çµæã®çææããµãŒãã¹ã¿
ææãæ¬çºæã®ãµãŒãã¹ã¿çŽ åã§çšããå°é»äœæ
æããã³çµ¶çžäœææãšåãçµæã®çææãçšããŠ
ç¹éæ60â37101å·å ¬å ±å®æœäŸã«èšèŒã®æ¹æ³ã«æº
ããŠäžäœåããåŸãããããã¬ã¹ïŒHPïŒçŒçµã
ãã ãã®çµæãçææãäžäœåããåŸHPçŒçµããŠ
ãµãŒãã¹ã¿çŽ åãšããå Žåã¯ãäžäœååŸã®çŒçµå
ãšçŒçµåŸã§ã¯å¯žæ³ãªãã圢ç¶ã«å€åãçããæµæ
å€ã®ãã©ãããçŽ å100åã«ã€ãïŒïŒ 以äžãšå€§ã
ãã€ãã ããã«å¯Ÿãæ¬çºæã®çŽ åã§ã¯ããã©ããã¯ïŒïŒ
æªæºã§ãã€ãã
ãµãŒãã¹ã¿çŽ åã«é©çšããŠæå¹ãªãµãŒãã¹ã¿ææ
ããã³ãµãŒãã¹ã¿çŽ åã«é¢ããã å è¡æè¡ãšãã®åé¡ç¹ ãµãŒãã¹ã¿ã¯ãææž©æµæäœã®é»æ°æµæã®æž©åºŠäŸ
åæ§ãå©çšãã枩床ã»ã³ãµã§ããã枩床枬å®ãæž©
床å¶åŸ¡çã«æ±çšãããŠãããç¹ã«é«æž©çšãšããŠ
ã¯ãäŸãã°èªåè»ææ°ã¬ã¹æž©åºŠæ€åºã»ã³ãµãç³
æ²¹ã»ã¬ã¹ççŒå¶åŸ¡çšã»ã³ãµãªã©ã«äœ¿çšãããŠã
ãã åŸæ¥ã®é«æž©çšãµãŒãã¹ã¿çŽ åã®ææž©æµæäœã®æ
æãããªãã¡ãµãŒãã¹ã¿ææãšããŠã¯ããã¿ã«ç³
åïŒZrO2âCaOâY2O3âNd2O3âThOçã®ãžã«
ã³ãã¢ç³»ïŒãã¹ããã«åïŒMgOâNiOâAl2O3â
Cr2O3âFe2O3çïŒCoOâMnOâNiOâAl2O3â
Cr2O3âCaSiO3çïŒNio2âCoOâAl2O3çïŒ
MgOâAl2O3âCr2O3âLaCrO3çïŒãã³ã©ã³ãã
åïŒAl2O3âCr2O3âMnO2âCaOâSiO2çïŒãã
ã®ä»ãããã¹ã«ã€ãåãã«ãã«åãªã©ã®è€åé žå
ç©ã®çŒçµäœãçšããããŠããã ãããã®ãã®ã¯ãè€åé žåç©çŒçµäœã§ãããã
ã«ã 1000â以äžã«çµæ¶å€æ ç¹ãæããããšã ç²åéã«ããªã¢ãŒãçæããããšã ãªã©ã®åå ã«ãããçµæå€åã倧ããäžå®å®ãªã
ã®ãå€ããç¹ã«ããžã«ã³ãã¢ç³»ã¯ãé žçŽ ã€ãªã³äŒ
å°äœã§ããããé žåéå åå¿ã䌎ããçµæå€åã
倧ããã ãŸããå€å ç³»ã®è€åé žåç©ã§ããããã«ãæµæ
å€çãç¹æ§ã«ãããŠããã©ããã倧ããã ããã«ããããã®ãã®ã§ã¯ããµãŒãã¹ã¿å®æ°ïŒ¢
ã®å€ã倧ããããµãŒãã¹ã¿ã®æµæã®æž©åºŠä¿æ°ã倧
ããããããšãšãªããåžžæž©ããé«æž©ãŸã§ã®åºãæž©
床ç¯å²ãã«ããŒãããµãŒãã¹ã¿ãšããããšãã§ã
ãªãã€ããç¹ã«500â以äžã®æž©åºŠã§ã¯äœ¿çšã«èã
ãªãã€ãã ããã«å¯Ÿããçåã±ã€çŽ ãçåããŠçŽ ãäž»æå
ãšããåçš®ãµãŒãã¹ã¿çŽ åãç¥ãããŠããã äŸãã°ãç¹å ¬æ42â19061å·ã«ã¯ãåçµæ¶çå
ã±ã€çŽ ã«3Bãããã¯5Bæå çŽ ãïœåãªããïœå
äžçŽç©ãšããŠåŸ®éæ·»å ãããµãŒãã¹ã¿çŽ åãèšèŒ
ãããŠããã ãããããã®ãã®ã¯åçµæ¶äœè£œã䌎ããããç
ç£æ§ãäœã補é ã³ã¹ããé«ããªãã ãŸãããã®ãã®ã¯é«æž©ã§éåžžã«å®å®ãªé»æ°æµæ
å€ã瀺ããã®ã§ã¯ããããçŽ åã倧æ°äžã§é«æž©ã«
ãŠäœ¿çšããå Žåãç¹ã«400â以äžã§ã¯è¡šé¢é žåã
åããŠããŸãããã®ãããä¿è·èãå¿ èŠãšããã
ãã®ä¿è·è圢ææ³ãšããŠã¯ã補é ãæã容æã§ã
ãç¹ã§ãã¬ã©ã¹ã«ãããããã®å°æ¢ã奜é©ã§ã
ãã ããããäžèšã®ãµãŒãã¹ã¿çŽ åã¯ãã¬ã©ã¹å°æ¢
ãè¡ãå·¥çšã«ãããŠãçåã±ã€çŽ ãã¬ã©ã¹ãšã®å
å¿ã«ããçºæ³¡ãããããã¬ã©ã¹å°æ¢ãã§ããªãã ããã«ãç±³åœç¹èš±ç¬¬4086559å·æ现æžã«ã¯ãïœ
åäžçŽç©ã0.7volïŒ ä»¥äžæ·»å ããç±å解ã«ããå€
çµæ¶ç軞æ¶ç³»çåã±ã€çŽ ãçšãããµãŒãã¹ã¿çŽ å
ãèšèŒãããŠããã ãŸããç±³åœç¹èš±ç¬¬4359372å·ããã³å4424507å·
æ现æžã«ã¯ãäžçŽç©ã埮éå«ãçåã±ã€çŽ ãŸãã¯
çåããŠçŽ ã®ã¹ããã¿èèãµãŒãã¹ã¿çŽ åãèšèŒ
ãããŠããã ãããããããã®èèåã®ãµãŒãã¹ã¿ã¯ãåçµ
æ¶åæ§çç£æ§ãäœãã補é ã³ã¹ããé«ããªãããŸ
ãã¬ã©ã¹å°æ¢ãè¡ãããšãã§ããªãã ããã§ãåŸè ã®ã¹ããã¿èèã§ã¯ã¬ã©ã¹ãèžç
ããŠä¿è·èãšããŠçºæ³¡ãæããŠãããããã®å Žå
ã«ããã«çç£æ§ãäœäžããã ä»æ¹ãé žåç©ææãšéé žåç©ææã®è€åçŒçµäœ
ãç¥ãããŠããããã®ãã®ã¯ãåçµæ¶ãèèãšæ¯
èŒããŠçç£æ§ãé«ãã ãã®ãããªè€åçŒçµäœãšããŠã¯ã以äžã®ãããª
çåã±ã€çŽ ãäž»äœãšããè€åçŒçµäœãç¥ãããŠã
ãã (A) çåã±ã€çŽ ãäž»æåãšããŠãBeïŒBeOïŒïŒ¢ïŒ
B2O3ïŒBNïŒB4Cã®ãããããå çŽ æç®ã§20wt
ïŒ ä»¥äžå«æããå€çµæ¶çåã±ã€çŽ çŒçµäœïŒç±³åœ
ç¹èš±ç¬¬4467309å·æ现æžïŒã (B) çåã±ã€çŽ ã«ãã¢ã«ãããŠã ãé žåã¢ã«ãã
ãŠã çã®ã¢ã«ãããŠã ååç©ã®ïŒçš®ä»¥äžã0.5
ã10wtïŒ å«æããå€çµæ¶çŒçµäœïŒç¹éæ60â
49607å·å ¬å ±ïŒã (C) çåã±ã€çŽ ã«ïŒ¢ãç±æ¡æ£ãã埮éã®ïŒ¢ãæ·»å
ããçåã±ã€çŽ çŒçµäœïŒç¹å ¬æ60â52562å·å ¬
å ±ïŒã ãããããããã§ã¯SiCå«æéãå€ããããå
èšåæ§çºæ³¡ã®ããã¬ã©ã¹å°æ¢ãå°é£ã§ããã ãŸããçåã±ã€çŽ ãäž»äœãšãããšãé£å å·¥æ§ã§
ããããµãŒãã¹ã¿ããããžã®åæå å·¥ãå°é£ã§ã
ãã ããã«ãã®å€ã10000K以äžãšå€§ãããªãã
ãµãŒãã¹ã¿ã®æž©åºŠä¿æ°ã倧ãããªããããŠåºãæž©
床ç¯å²ãã«ããŒã§ããªããšããæ¬ ç¹ãããã ãŸãããµãŒãã¹ã¿ææã®çµææ¯ãšæµæçïŒÏïŒ
ãšã®é¢ä¿ã調ã¹ããšããããã§ã¯ãããããªçµæ
æ¯ã®å€åã«å¯ŸããŠãÏãæ¥æ¿ã«å€åããæµæã®ã³
ã³ãããŒã«ãå°é£ã§ããã ããã«ãç¹éæ55â140201å·å ¬å ±ã«ã¯ãSiCã
äž»æåãšããïŒã15wtïŒ RuO2ãš20ã50wtïŒ ã®ã¬
ã©ã¹ãå«ãåèãµãŒãã¹ã¿ãèšèŒãããŠãããã
ããããã®ãã®ããå°å·ãçŒæå·¥çšã«ãããŠãç²
æ«ç¶ã®SiCãšã¬ã©ã¹ãšã®çºæ³¡ãæ¿ãããããã³ã³
ãããŒã«ããããšã¯éåžžã«é£ããã ããã«ãç¹éæ60â37101å·å ¬å ±ã«ã¯çåã±ã€
çŽ ãçªåã±ã€çŽ ã«ãé žåãžã«ã³ããŠã ãé žåãã
ã±ã«ãé žåäºéãé žåã³ãã«ããé žåã¯ãã ãé ž
åãã¿ã³ã®åå°äœé žåç©ãè€åããææãçŒçµã
ããã®ãããã«ã¯ãé žåã¢ã«ãããŠã ãé žåãžã«
ã³ããŠã ã«ã3AïŒ4AïŒ5AïŒ6Aæé·ç§»å çŽ ã®çª
åç©ãããŠåç©ãçåç©ããªããã±ã€åç©ãè€å
ããææãçŒçµãããã®ãèšèŒãããŠããã çåã±ã€çŽ ãçªåã±ã€çŽ ã«åå°äœé žåç©ãè€å
ããææãçŒçµãããã®ã¯ã åå°äœé žåç©ãçŒææã«éå ããããããé»
æ°æµæå€ã®ã³ã³ãããŒã«ãé£ããããŸãé žçŽ æ¬
é¥çã«ãã䜿çšé°å²æ°ã®åœ±é¿ããããããã çåã±ã€çŽ ãçªåã±ã€çŽ ã«æ¯èŒããåå°äœé ž
åç©ã¯çŒæ枩床ãäœããããè€åææã®çŒææ¡
件ãé£ããã ïŒã§èšè¿°ããæ§ã«åå°äœé žåç©ã¯éå ãã
ããšé»æ°æµæå€ããã¡ããããäœäžããããã
æ¯æµæå€ã500âã§æ°åΩcm以äžã«ããã®ãé£
ããããã®ãããµãŒãã¹ã¿åè·¯ã§äžè¬ã«äœ¿çšã
ãã103ã106Ωã®çŽ åã«ããã«ã¯é»æ¥µéãé·ã
ãšããªããã°ãªãããå°ååãé«å¿çæ§ã«åé¡
ãçããã ãŸãã3AïŒ4AïŒ5AïŒ6Aæé·ç§»å çŽ ã®çªåç©ã
ããŠåç©ãçåç©ãªããã±ã€åç©ã¯ãé»æ°çã«è¯
å°äœã«è¿ããããé žåã¢ã«ãããŠã ãé žåãžã«ã³
ããŠã ãšè€åãããå Žåãããããªçµææ¯ã®å€å
ã«ããé»æ°æµæå€ããæ¥æ¿ã«å€åãããã®ã³ã³ã
ããŒã«ãå°é£ã§ããã ããã«ãåèšç¹éæ60â37101å·å ¬å ±ã«ã¯ããµ
ãŒãã¹ã¿ææã®å ·äœççµæãããã€ãèšèŒãããŠ
ããããã®ãã¡ããã®å ¬å ±èšèŒã®36wtïŒ SiCâ
7wtïŒ B4Câ55wtïŒ CoOâ2wtïŒ Li2Oã§ã¯ãLiã
é»å§å°å ã«ããæ¡æ£ãããããCoã¯500âä»è¿ã§
äžå®å®ã§ããããŸãããããã®çµæã§ã¯500âã§
60Ωcm以äžã®ããé»æ¥µéã®ééãæããããªããª
ã©å°ååã§ããªããããã«ã¯ã65wtïŒ SiCâ
35wtïŒ Al2O311éééšã«ïŒéééšã®TiO2ãæ·»å
ãããã®ããŸãã37wtïŒ SiCâ20wtïŒ Al2O3â
35wtïŒ TiO2â8wtïŒ Ta2O3ã§ã¯TiO2ãSiCã®äœç©
æ¯ã§0.5ããå€ãå«æããããããTiO2ãSiCã
ãã³çŒæé°å²æ°ã«ããéå ããå°é»äœãšãªããã
ãã®æµæã®ã³ã³ãããŒã«ãé£ãããããã500â
ã§ã®æµæå€ã®å®å®æ§ã«ãããã ãã®ä»ãåå ¬å ±ã«èšèŒã®çŒçµäœã®å ·äœäŸã¯ã
SiCïŒSi3N4ïŒAl2O3ïŒZrO2ã®ïŒçš®ä»¥äžãšãNiOïŒ
ZnOïŒCoOïŒCr2O3ïŒTiO2ã®ïŒçš®ä»¥äžãšãè€åã
ãŠåœ¢æãããŠãããããããéå±é žåç©åå°äœã¯
çåç©ã«ããéå ããããããé°å²æ°ã«åŒ±ããçŽ
åã®é»æ°æµæå€ãäœãã500â以äžã§äŸ¡æ°ãå€å
ããããçã®ããããã®ç¹ã§æ¬ ç¹ãããã çºæã®ç®ç æ¬çºæã®ç®çã¯ãé«æž©ãç¹ã«400ã800âã®æž©åºŠ
ã§äœ¿çšããŠãå®å®æ§ãæããæµæå€ã®ã³ã³ãããŒ
ã«ã容æã§ããããã¬ã©ã¹å°æ¢ã容æã§ãããµãŒ
ãã¹ã¿ææããã³ãã®ææãé©çšããŠç¹æ§ã®åªã
ããµãŒãã¹ã¿çŽ åãæäŸããããšã«ããã çºæã®é瀺 ãã®ãããªç®çã¯ãäžèšã®æ¬çºæã«ãã€ãŠéæ
ããããããªãã¡ãæ¬çºæã¯å°é»è·¯åœ¢æç©è³ªãšã
ãŠçåã±ã€çŽ ããã³ïŒãŸãã¯çåããŠçŽ ãšãã¢ã«
ãããŠã ãã·ãªã³ã³ããã°ãã·ãŠã ãã«ã«ã·ãŠ
ã ãã¹ããã³ããŠã ããã³ããªãŠã ã®é žåç©ã®ïŒ
皮以äžãããªã矀ããéžæãããçµæ¶è³ªã®ãããª
ãã¯ã¹ç©è³ªãšãå«æããåèšçåã±ã€çŽ ã®å«æé
ãåèšãããªãã¯ã¹ç©è³ªã®å«æéã«å¯Ÿãäœç©æ¯ã§
1.24以äžã§ããçŒçµäœããæ§æãããããšãç¹åŸŽ
ãšãããµãŒãã¹ã¿ææãšãã®ãµãŒãã¹ã¿ææãã
圢æããããµãŒãã¹ã¿ããããæãããµãŒãã¹ã¿
çŽ åã§ããã çºæã®å ·äœçæ§æ 以äžãæ¬çºæã®å ·äœçæ§æã«ã€ããŠè©³çŽ°ã«èª¬æ
ããã æ¬çºæã®ãµãŒãã¹ã¿ææã¯ãå°é»è·¯åœ¢æç©è³ªãš
ããŠçåã±ã€çŽ ããã³ïŒãŸãã¯çåããŠçŽ ãšã
AlïŒSiïŒMgïŒCaïŒSrããã³Baã®ãã¡ã®ïŒçš®ä»¥
äžã®é žåç©ã®éåžžå€çµæ¶è³ªã®ãããªãã¯ã¹ç©è³ªãš
ãå«æããçŒçµäœããæ§æããããã®ã§ããã ãããŠãçåã±ã€çŽ ã®å«æéã¯ãåèšãããªã
ã¯ã¹ç©è³ªïŒAlïŒSiïŒMgïŒCaïŒSrïŒBaã®é žåç©
ã®ïŒçš®ä»¥äžïŒã®å«æéã«å¯Ÿãäœç©æ¯ã§1.24以äžã§
ããã ãã®äœç©æ¯ã1.24ãããããšãæµæå€ãäœäž
ãããŸãåŸè¿°ã®ã¬ã©ã¹å°æ¢å·¥çšçã§çºæ³¡ãçãã
ã¬ã©ã¹å°æ¢ã«ããçŽ ååãå°é£ãšãªãããã§ã
ãã ãªããçåã±ã€çŽ ïŒãããªãã¯ã¹ç©è³ªã®äœç©æ¯
ãïŒã1.24ã§ããã°ãçåã±ã€çŽ ãšçåããŠçŽ ã®
éæ¯ã¯ïŒïŒïŒãïŒïŒïŒã®çš®ã ã®éæ¯ã§ãã€ãŠã
ãããã ããBeã®é žåç©ãããªãªã¢ã¯ããããŠ
æ¯æ§ã匷ãã®ã§é€å€ãããã ãŸããçåã±ã€çŽ ãçåããŠçŽ ããã³ãããªã
ã¯ã¹ç©è³ªã®äœç©æ¯ã¯ãçŒçµäœã®åæé¢ãé¡é¢å å·¥
ããã®ã¡ããããé»åé¡åŸ®é¡èŠ³å¯ããåæåã®é¢
ç©æ¯ãç®åºãããããäœç©æ¯ãšããã°ããã ãããªãã¯ã¹ç©è³ªã¯AlïŒSiããã³2Aæå çŽ ã®
é žåç©ã®ïŒçš®ä»¥äžã®çŒçµäœã§ããã ãããªãã¯ã¹ç©è³ªããã®ãããªé žåç©çŒçµäœãš
ããããšã«ãããã¬ã©ã¹å°æ¢çã®éã®çºæ³¡ãæžå°
ããã ãã®ãããªé žåç©ãšããŠã¯ãé žåã¢ã«ãããŠã
ïŒAl2O3ãç¹ã«Î±âAl2O3ïŒã§ãã€ãŠãããããã
ãã¯ãé žåã·ãªã³ã³ïŒSiO2ïŒãããã«ã¯çš®ã ã®é
æ¯ã®é žåã¢ã«ãããŠã âé žåã·ãªã³ã³ã§ãã€ãŠã
ãããé žåã·ãªã³ã³ãçšããããšã«ãã€ãŠãåæ
å å·¥æ§ãåäžãããããåã容æãšãªãã ãŸãããããã«ããããããã¯ãããã«å ãã
2Aæå çŽ ã®é žåç©ã®ïŒçš®ä»¥äžã§ãã€ãŠãããã Be以å€ã®2Aæå çŽ ã®é žåç©ãå«æãããããš
ã«ãã€ãŠãé»æ°æµæå€ã®ã³ã³ãããŒã«ã容æãšãª
ããçŒçµäœãŠãšãå ã«ãŠçããé»æ°æµæå€ã®äœçœ®
çãªãã©ãããå°ãããªãããŸããåæå å·¥æ§ã
容æãšãªãã ãããã¯ãéåžžãé žåãã°ãã·ãŠã ïŒMgOïŒã
é žåã«ã«ã·ãŠã ïŒCaOïŒãé žåã¹ããã³ããŠã
ïŒSrOïŒãé žåããªãŠã ïŒBaOïŒãç¹ã«ã®åœ¢ã§å«æ
ãããã 2Aæå çŽ ã®é žåç©ã®éã¯ãç®çãšããé»æ°æµ
æå€ã«å¿ããããªãã¯ã¹ç©è³ªã®ïŒã100ïŒ ã®ç¯å²
ã®äžããé©å®æ±ºå®ããã°ããã ããã«ããããªãã¯ã¹ç©è³ªã¯ãAlïŒSiããã³
Be以å€ã®2Aæå çŽ ã®é žåç©ã®ïŒçš®ä»¥äžã«å ãã
4Aæå çŽ ã®é žåç©ã®ïŒçš®ä»¥äžãå«æããŠãããã 4Aæå çŽ ã®é žåç©ãå«æããããšã«ãã€ãŠã
é»æ°æµæå€ã®ã³ã³ãããŒã«ã容æãšãªãããã®çŒ
çµäœå ã§ã®ãã©ãããå°ãããªããåæå å·¥æ§ã
åäžããã 4Aæå çŽ ïŒTiïŒZrïŒHfïŒã®é žåç©ãšããŠã¯ã
é žåãã¿ã³ïŒTiO2ïŒãé žåãžã«ã³ããŠã ïŒZrO2ïŒ
ã奜ãŸããã ããã4Aæå çŽ ã®é žåç©ã®éã¯ãçåã±ã€çŽ
ãçåããŠçŽ ã®å«æéã«å¯Ÿããäœç©æ¯ã§0.5以äžã
ç¹ã«0.3以äžã§ããã ããã¯ãäœç©æ¯ã0.5ãããããšã4Aæå çŽ ã®
é žåç©ãçŒææã«ãSiCãB4Cã«ããéå ãããŠ
å°äœæ§ããã¡ãSiCïŒB4Cãå°äœè·¯åœ¢æç©è³ªã®äž»
äœãšãªãããé«æž©ã§ã®ãµãŒãã¹ã¿ç¹æ§ããã®å®å®
æ§ãäœäžããããã§ããã ãã®ãããªãããªãã¯ã¹ç©è³ªã圢æããé žåç©
çŒçµäœã®å ·äœäŸãšããŠã¯ãαâAl2O3ïŒSiO2ãã
ã©ã€ãïŒ3Al2O3ã»2SiO2ïŒãã¹ãã¢ã¿ã€ã
ïŒMgOã»SiO2ïŒãããªã«ã¹ãã©ã€ãïŒ2MgOã»
SiO2ïŒããžã«ã³ã³ïŒZrO2ã»SiO2ïŒãç£åšïŒSiO2ã»
Al2O3ïŒããã°ãã·ã¢ïŒMgOïŒãAl2O3ã»CaOïŒ
Al2O3ã»TiO2ïŒBaOã»SiO2çã âEngineering Properties of Ceramics
Databook to Guide Materials Selection for
Structural Applicationsâ Battele Memorial
Institute Columbus Laboratries P445ãP447ïŒ
P459ïŒP469ïŒP472ïŒP479ãP480ã«èšèŒã®è€åé ž
åç©ãªã©ãæããããã ãããã®é žåç©çŒçµäœã®ååŠåŒã¯ãããããã«
ãã³å ã«ç€ºããããã®çã§ããããååŠéè«çã«
ãã®çµæãå€å°ã¯ãããŠãããã ãŸãããã®å¹³åã°ã¬ã€ã³ç²åŸã¯éåžž0.1ã100ÎŒ
ïœãç¹ã«0.1ã10ÎŒïœã®ç¯å²ã«ããã çŒçµäœäžã«ãããçåã±ã€çŽ ã¯ãååŠåŒSiCã§
瀺ããããã®ã§ãããååŠéè«çã«ãã®çµæãå€
å°ã¯ãããŠãããããŸãããã®å¹³åã°ã¬ã€ã³ç²åŸ
ã¯ãéåžž0.1ã15ÎŒïœã®ç¯å²ã«ããã çŒçµäœäžã«ãããçåããŠçŽ ã¯ãååŠåŒB4Cã§
瀺ããããã®ã§ãããååŠéè«çã«ãã®çµæãå€
å°ã¯ãããŠãããããŸãããã®å¹³åç²åŸã¯éåžž
0.1ã15ÎŒïœã®ç¯å²ã«ããã æ¬çºæã¯ããããçåããŠçŽ ãçåã±ã€çŽ ãã
ããã¯çåããŠçŽ ãšçåã±ã€çŽ ãšãããããªãã¯
ã¹ç©è³ªäžã«ãŠå°é»è·¯ã圢æããŠãµãŒãã¹ã¿ç¹æ§ã
çºæ®ãããã®ã§ããããããŠãããããã圢æã
ããå°é»è·¯ã¯400â以äžã®é«æž©ã«ãŠå®å®ã§ãè¯å¥œ
ãªãµãŒãã¹ã¿ç¹æ§ãæãããã®ã§ããã 次ã«ãåèšãããªãã¯ã¹ç©è³ªã®é žåç©çŒçµäœã«
é žåã¢ã«ãããŠã ïŒÎ±âAl2O3ïŒãé©çšããå Žå
ã«ã€ããŠãã詳现ã«èª¬æããããã®å Žåãçµæ
ã¯ãäžèšã®çŒçµäœãååŠåæããŠåŸãwtïŒ ã§ç€º
ããŠããã é žåã¢ã«ãããŠã ãçåã±ã€çŽ ããã³çåããŠ
çŽ ã®å«æéããïœïŒïœïŒïœïŒ100wtïŒ ã«ãŠããã
ããé ã«xwtïŒ ïŒywtïŒ ïŒzwtïŒ ãšããå Žåãé ž
åã¢ã«ãããŠã ãçåã±ã€çŽ ããã³çåããŠçŽ ã®
çµæïŒïœïŒïœïŒïœïŒã第ïŒå³ã«ç€ºãããã«ãïŒå
çµæå³ã§ïŒ¡ïŒ100ïŒïŒïŒïŒïŒãïŒïŒïŒïŒïŒ100ïŒã
ïŒ50ïŒ50ïŒïŒïŒã«ãã€ãŠå²ãŸãããã€ïŒ¡ç¹ããã³
ç¹ãå«ãŸãªãçµæç¯å²ã«ããããã®å Žåã奜ãŸ
ããã¯ãïŒ95ïŒïŒïŒïŒïŒãïŒïŒïŒïŒïŒ95ïŒã
ïŒ50ïŒ50ïŒïŒïŒãïŒ95ïŒïŒïŒïŒïŒã«ãã€ãŠå²ãŸã
ãçµæç¯å²ããã奜ãŸããã¯ãïŒ95ïŒïŒïŒïŒïŒã
ïŒ50ïŒïŒïŒ50ïŒãïŒ50ïŒ50ïŒïŒïŒãïŒ95ïŒïŒïŒ
ïŒïŒã«ãã€ãŠå²ãŸããçµæç¯å²ãç¹ã«å¥œãŸããã¯
ïŒ95ïŒïŒïŒïŒïŒãïŒ80ïŒïŒïŒ20ïŒãïŒ65ïŒ35ïŒ
ïŒïŒãïŒ95ïŒïŒïŒïŒïŒã«ãã€ãŠå²ãŸããçµæç¯å²
ã«ãã奜ãŸããçµæãåŸãã ãã®ãããªçµæç¯å²ãšããã®ã¯ã第ïŒå³ã«ãã
ãŠïŒ¡ïŒ100ïŒïŒïŒïŒïŒç¹ãããªãã¡é žåã¢ã«ãããŠ
ã ãããã¯ãããªãã¯ã¹ç©è³ª100wtïŒ ãšãªããšé«
æž©ã§ãé«æµæãšãªããïŒïŒïŒïŒïŒ100ïŒç¹ãããª
ãã¡çåããŠçŽ 100wtïŒ ãšãªããšçŒçµäœãšããã®
ãå°é£ãšãªãããã§ããããŸãBCç·ããäžã«ãª
ããšããµãŒãã¹ã¿çŽ åãšããæã®ïŒ¢å®æ°ã倧ãã
ãªããçŒçµäœãšããã®ãå°é£ãšãªãããã§ããã ãããŠãDFç·ä»¥äžã«ãªããšB4Cããã³ïŒãŸã
ã¯SiCæ·»å ã®å¹æã«ããææã®æµæå€ãåŸãããš
ãã§ãããŸããECç·ä»¥äžã«ãªããšçŒçµæ§ãåäž
ããè¯å¥œãªãµãŒãã¹ã¿ããããåŸãããšãã§ã
ãã ãããŠãGCç·ä»¥äžãšãªã€ãŠãAl2O3éã50wt
ïŒ ä»¥äžãšãªããšçŒçµæ§ã¯ããäžå±€è¯å¥œãªãã®ãšãª
ãã ãã®ãããªå ŽåãB4Cããã³ïŒãŸãã¯SiCæ·»å
ã®å¹æã®äžã€ã¯Al2O3ãããã¯ãããªãã¯ã¹ç©è³ª
ã®æµæãäœäžããããšã«ããããããŠããã®æµæ
äœäžã®å¹æã¯DGCFã§å²ãŸããé åå ã§çºçŸãã
ãã®é åå ã§B4Cããã³ïŒãŸãã¯SiCéãå¢å ã
ãã«ã€ãæµæå€ã¯æŒžæžããããããGCç·ããã
ããšæµæå€åã¯é£œåãæµæå€ã¯ã»ãšãã©äœäžããª
ãããšã«ãªãã ãã®ãããGECã§å²ãŸããé åå ã§ã¯ãéåžž
ã®å Žåã¯ãµãŒãã¹ã¿ãšããŠäœ¿çšå¯èœã§ããããçš
ããåæã«ãã€ãŠã¯æµæå€ãäœãããµãŒãã¹ã¿ãš
ããŠäœ¿çšã§ããªãããšããããåŸã€ãŠãåæã«ã
ãå¶çŽãåããªãããšããããŠãæ·»å éã«ãã€ãŠ
ææã®æµæå€ã«å¶åŸ¡ã§ãããšããç¹ã§ç¹ã«GCç·
以äžã§ããããšã奜ãŸããã ãã詳现ã«è¿°ã¹ããªãã°ãåæSiCã«ã¯ããªãŒ
ã®ïŒ£ããã³Siã®ä»ãïŒAlïŒFeïŒTiçãå«æã
ããããSiCå«æ99wtïŒ çšåºŠä»¥äžã®ãã®ã§ã¯é£œå
æµæå€ã104ΩcmçšåºŠä»¥äžãšãªããGCEã§å²ãŸã
ãé åå ã§äœ¿çšå¯èœã§ããããããåèšæªæºçŽåºŠ
ã®ãã®ã§ã¯GCç·ããäžã§æµæå€ãå°ãããªã€ãŠ
ããŸãããŸããåæB4Cã«ã¯ïŒ¯ïŒïŒ®ïŒFeçãäžçŽ
ç©ãšããŠå«æãããããçŽåºŠ99wtïŒ çšåºŠä»¥äžã®
ãã®ã§ã¯104Ωcm以äžã®é£œåæµæå€ããã¡ãGEC
ã§å²ãŸããé åå ã§äœ¿çšå¯èœã§ããããäžèšæªæº
ã®çŽåºŠã®ãã®ã§ã¯GCç·ããäžã§æµæå€ãå°ãã
ãªã€ãŠããŸãã ãªãããã®DHIFã§å²ãŸããé åã¯ããã奜ãŸ
ããã¯ïŒªïŒ90ïŒïŒïŒ10ïŒãïŒ85ïŒïŒïŒ15ïŒãïŒ80ïŒ
20ïŒïŒïŒãïŒïŒ70ïŒ30ïŒïŒïŒã§å²ãŸããé åãšãªã
ãšãããäžå±€å¥œãŸããæµæå€ãåŸãããšãã§ã
ãã 以äžã«ãããŠã¯ããããªãã¯ã¹ç©è³ªãšããŠÎ±â
Al2O3ãåç¬ã§çšãã αâAl2O3ïŒSiCããã³B4Cã®å«æéãïœïŒïœïŒ
ïœãšããå Žåã®å¥œãŸããçµæç¯å²ã«ã€ããŠè¿°ã¹ãŠ
ããã αâAl2O3ãä»ã®ãããªãã¯ã¹ç©è³ªã«ãããŠçš
ããå Žåã«ã¯ãä»ã®ãããªãã¯ã¹ç©è³ªã®çè«å¯åºŠ
ãÏmïŒÎ±âAl2O3ã®çè«å¯åºŠãÏaããããšãã
ïŒ100ïŒïŒÏmxïŒÏaïŒïœïŒïœïŒãšãããšããã
ãªãã¯ã¹ç©è³ªã¯AxÏmïŒÏaéééšãSiCã¯Ayéé
éšãB4Cã¯Azéééšçšããã°ããããããŠãå
èšç¬¬ïŒå³ã®ç¹ïŒ¡ãïŒã®ïŒïœïŒïœïŒïœïŒã«å¯Ÿå¿ãã
ïŒAÏmxïŒÏaïŒAyïŒAzïŒã«ãŠæ±ºå®ãããåçµæ
ç¯å²ãåæåã®å¥œé©ãªå«æééç¯å²ã§ããã ãã®ãããªå Žåãåæåã®çè«å¯åºŠã¯ãåèš
Battele Memorial Institute Columbus
Labovatoriesã®æç®ã«èšèŒãããŠããããŸãã
ããã容æã«èšç®å¯èœã§ããã αâAl2O3ã¯ÏaïŒ3.98ïœïŒcm3ãB4Cã¯2.52ïœïŒ
cm3ã SiCã¯3.21ïœïŒcm3ã§ããããã®ä»ãäŸãã°
2MgOã»SiO2ã¯3.71ïœïŒcm3çã§ããã ãªããæ¬çºæã§ã¯ãB4CïŒSiCããã³ãããªã
ã¯ã¹ç©è³ªã®äœç©æ¯ããµãŒãã¹ã¿ç¹æ§ããã³çºæ³¡é²
æ¢ç¹æ§ã決å®ãããã®ã§ããã åŸã€ãŠãαâAl2O3ã®çè«å¯åºŠãÏaïŒSiCã®ç
è«å¯åºŠãÏsïŒB4Cã®çè«å¯åºŠÏbãšãããšãã ïŒ100ïŒïŒïœïŒÏaïŒïœïŒÏsïŒïœïŒÏbïŒãšãããšã ïŒBxïŒÏaïŒByïŒÏsïŒBzïŒÏbïŒãäžèšïŒïœïŒïœïŒ
ïœïŒã«å¯Ÿå¿ããäœç©æ¯çãšãªãã æ¬çºæã®çŒçµäœã¯ã奜ãŸããã¯ãã®ãããªéé
æ¯çµæããã€ãã®ã§ããããåèšã®ããã«å®æž¬ã
ããSiCïŒãããªãã¯ã¹ç©è³ªã®äœç©ãšããŠã¯1.24
以äžã§ããã ãŸããçŒçµäœã®å®æž¬å¯åºŠã¯ãçŒçµäœã®çè«å¯åºŠ
ã®75ïŒ ä»¥äžãç¹ã«90ã100ïŒ ãç¹ã«95ã100ïŒ ã§ã
ãããšã奜ãŸãããããã«ãããçŽ åã®é»æ°æµæ
å€ã®çµæå€åç¹æ§ãåäžããã æ¬çºæã«ãããçŒçµäœã§ã¯ãçåã±ã€çŽ ãªãã
çåããŠçŽ ã®äžéšãçŒæäžã«é žåç©ïŒé žåã±ã€
çŽ ãé žåããŠçŽ ïŒã«å€åããŠããŠãããã ãããã¯åèšé žåç©ã®äžéšãçåç©ã«å€åããŠ
ããŠãããã ãã ããé žåããŠçŽ ã®å«æéã¯ïŒã1wtïŒ ã§ç¹
ã«0.1ã0.5wtïŒ ã§ããããšã奜ãŸããã é žåããŠçŽ ãç¹ã«B2O3ã¯ã¬ã©ã¹è³ªãšãªããã¬
ã©ã¹çžãå¢å ããäœèç¹ãšãªããé»æ°æµæã®ã³ã³
ãããŒã«ããçŒçµäœã®ç²ååŸã®ã³ã³ãããŒã«çã
å°é£ãšãªãããã§ããã æ¬çºæã®ãµãŒãã¹ã¿ææã¯ããããªãã¯ã¹ç©è³ª
ãšãå°é»è·¯åœ¢æç©è³ªãšããŠçåã±ã€çŽ ããã³ïŒãŸ
ãã¯çåããŠçŽ ãšãå«æãããã®ã«ãããã«å¯æ
åãšããŠ3Aæå çŽ ã®äžçš®ä»¥äžãå çŽ æç®ã§å¥œãŸ
ããã¯0.01ã10wtïŒ å«æãããçŒçµäœããæ§æã
ããããšãã§ããã 3Aæå çŽ ã¯ãéå±åäœãšããŠå«æãããŠãã
ååç©ãšããŠå«æãããŠãããããã¯ããããè€
åå«æãããŠãããã 3Aæå çŽ ãšããŠã¯ãç¹ã«ïŒ¹ïŒCeã奜ãŸããã
ååç©ãšããŠå«æãããå Žåã¯ããããã®å çŽ ã®
é žåç©ïŒY2O3ïŒCeO2ïŒãããã¯çåç©ã奜ãŸã
ãã ãããã®å çŽ ãå çŽ æç®ã§å¥œãŸããã¯0.01ã
10wtïŒ å«æãããããšã«ãããé»æ°æµæå€ã®ã³
ã³ãããŒã«ã容æãšãªããçŒçµäœãŠãšãå ã®é»æ°
æµæå€ã®äœçœ®çãã©ãããå°ãããªãã ãŸãã3Aæå çŽ ã«ããããããã¯ããã«å ãã
å¯æåãšããŠãéã奜ãŸããã¯éå±åäœãé žåç©
ïŒFe2O3ïŒãçåç©ã®ïŒçš®ä»¥äžã®åœ¢å«æãããŠãã
ãã Feã3Aæå çŽ ãšåçã®å¹æããã€ã Feã®å«æéã¯ãå çŽ æç®ã§0.01ã10wtïŒ ã奜
ãŸããã ãªããé以å€ã®ïŒæå çŽ ãäŸãã°CoïŒNiïŒRu
çã§ã¯ã500â以äžã®äœ¿çšæž©åºŠã§é žçŽ æ¬ é¥ã®éã
å€åãããããå«æéãå€ããªããšãé»æ°æµæã®
çµæå£åãçããããã®ããé以å€ã®ïŒæå çŽ ã®
éå±åäœãé žåç©ãçåç©çã®å«æã¯æé€ããã
ãã®ã§ã¯ãªãããå çŽ æç®ã§1wtïŒ ä»¥äžãç¹ã«ïŒ
ã0.5wtïŒ ã§ããããšã奜ãŸããã ãã®ãããªå¹æã¯ãåèšã«ãããŠãããªãã¯ã¹
ç©è³ªã«ã€ããŠè¿°ã¹ãããã«ã2Aæå çŽ ããã³4A
æå çŽ ã®é žåç©ã§ãå®çŸããããããŠããããã®
奜é©å«æéã¯ãåèšããããã«ããããªãã¯ã¹ç©
質ã®å šéšãŸãã¯äžéšã§ããããããå çŽ æç®ã§
0.01wtïŒ ä»¥äžã§ããããšã奜ãŸããã ããã«ããã®2Aæå çŽ ããã³4Aæå çŽ ã奜ãŸ
ããã¯MgïŒCaïŒSrïŒBaïŒTiïŒZrã®ïŒçš®ä»¥äžã¯
å çŽ åäœã§ãã€ãŠããçåç©ã§ãã€ãŠãããã奜
ãŸããã¯å çŽ æç®ã§0.01ã10wtïŒ ã®å«æéã«ãŠã
æµæå€ã®ã³ã³ãããŒã«ã容æãšãªãããã®ãã©ã
ããå°ãããªãã ããã«ãå¿ èŠã«å¿ããä»ã®å¯æåããäŸãã°å
äœãé žåç©ãçåç©çã®åœ¢ã§å«æããããšãã§ã
ãã ãŸãã5Aæã6Aæå çŽ ã«ã€ããŠã¯ããã®å«æ
ã«å¹æã¯ãªãããå¿ ããããã®å«æã¯æé€ããã
ãã®ã§ã¯ãªãããã ããå€éã®æ·»å ã¯ãµãŒãã¹ã¿
ç¹æ§ãäœäžãããã®ã§ãå çŽ æç®ã§10wtïŒ ãç¹
ã«1wtïŒ ããããªãããšã奜ãŸããã 次ã«ã1Aæå çŽ ãäŸãã°NaïŒLiçã«ã€ããŠã¯
ç¹ã«å«æãããªãããšã奜ãŸãããããã¯ãµãŒã
ã¹ã¿çŽ åã«é»å§ãå°å ãããšããããã®ã€ãªã³ã
移åãæ¡æ£ããæµæãçµæå£åããããããã§ã
ãããŸããã¬ã©ã¹å°æ¢ã®éã«ãã¬ã©ã¹äžã«ããã
ããæ¡æ£ãããããç¹æ§å£åãçããããããã§
ããã 1Aæå çŽ ã®å«æéã¯å çŽ æç®ã§ïŒã1wtïŒ ã
ç¹ã«ïŒã0.001wtïŒ ã§ããããšã奜ãŸããã ãŸãã7Aæå çŽ ã®å«æã奜ãŸãããªãã7Aæ
å çŽ ã¯äŸ¡æ°ãå€åãããããç¹æ§ã®çµæå€åãç
ããããããã§ããã 7Aæå çŽ ã®å«æéã¯ãå çŽ æç®ã§ïŒã1wtïŒ ã
ç¹ã«ïŒã0.05wtïŒ ã§ããããšã奜ãŸããã ããã«ã1Bæã2Bæããçµæå€åãçããã
ãã®ã§ãå çŽ æç®ã§ïŒã1wtïŒ ãç¹ã«ïŒã0.05wt
ïŒ ã§ããããšã奜ãŸããã ãã®ä»ãïŒAl以å€ã®3Bæå çŽ GaïŒInïŒTlã
ïŒã1wtïŒ çšåºŠä»¥äžå«æãããŠãããã ãã ããïŒSiïŒïŒ¯ïŒïŒ®ä»¥å€ã®4Bæã5Bæã
6BæïŒ7Bæå çŽ çã¯ç¹æ§äžå¥œãŸãããªãã®ã§ïŒ
ã1wtïŒ ã®å«æéã§ããããšã奜ãŸããã ãªããå¯æåãšããŠã¯ã埮éã®çªåç©ãã±ã€å
ç©ãããŠåç©çãå«æãããŠããŠãããã ãããå¯æåã®ç·èšã¯10wtïŒ ä»¥äžã§ããããš
ã奜ãŸããã çŒçµäœäžã«ããããããã®å¯æåã¯ãååç©ãš
ããŠå«æãããå Žåã¯ãååŠéè«çã«ãã®çµæã
å€å°ã¯ãããŠãããããŸãããã®å¹³åç²åŸã¯ãé
å±åäœã®å Žåã¯ãéåžžïŒã5ÎŒïœã®ç¯å²ã«ããã
ååç©ã®å Žåã¯ãéåžž0.1ã5ÎŒïœã®ç¯å²ã«ããã ããã«å¿ èŠã«å¿ããåèšã®å¯æåãããã¯çŒçµ
ã«ãããããã«å€åããååç©ãäŸãã°çé žå¡©ã
ææ©éå±ååç©çãæ·»å ããã 2Aæã3Aæã4AæãFeã®éå±åäœãããã¯
ååç©ã®ç²æ«ãšããŠã¯ãäžè¬ã«å¹³åç²åŸïŒã5ÎŒ
ïœã§ãçŽåºŠ95wtïŒ ä»¥äžã®ãã®ãçšãããããã
ã¯æº¶æ¶²æ·»å ããŠãããã ãã®ãããªçŒçµäœã¯æ¬¡ã®ããã«ããŠåŸãããã æå®éã®é žåã¢ã«ãããŠã çã®ãããªãã¯ã¹ç©
質ã®ç²æ«ãšçåã±ã€çŽ ç²æ«ããã³ïŒãŸãã¯çåã
ãŠçŽ ç²æ«ãšããšã¿ããŒã«ãã¢ã»ãã³çã®æº¶åªãå
ããŠããŒã«ãã«çã«ãã湿åŒæ··åããã é žåã¢ã«ãããŠã ïŒAl2O3ïŒçã®äžèšé žåç©ã®
ç²æ«ãšããŠã¯äžè¬ã«å¹³åç²åŸ0.1ã5ÎŒïœã§ãçŽåºŠ
99.5wtïŒ ä»¥äžã®ãã®ãçšããã ãããé žåç©ã¯ãçé žå¡©ãææ©éå±ååç©çã®
çŒçµã«ãã€ãŠé žåç©ã«ãªãååç©ã§ãã€ãŠãã
ãã çåã±ã€çŽ ïŒSiCïŒç²æ«ãšããŠã¯äžè¬ã«å¹³åç²
åŸ0.5ã5ÎŒïœã§éåžžçŽåºŠ98wtïŒ ä»¥äžã®ãã®ãçšã
ãã çåããŠçŽ ïŒB4CïŒç²æ«ãšããŠã¯äžè¬ã«å¹³åç²
åŸ0.5ã5ÎŒïœã§çŽåºŠ97wtïŒ ä»¥äžã®ãã®ãçšããã 溶åªéã¯ç²æ«ã®100ã120wtïŒ çšåºŠãšããã ãŸããå¿ èŠã«å¿ããŠããã«ãåæ£å€çãæ·»å ã
ãŠãããã ãã®åŸäžèšæ··åç©ã宀枩ã§å å§æ圢ããé žçŽ é°
å²æ°äžãããã¯éé žåæ§é°å²æ°äžã§åžžå§çŒçµæ³ã
ããããã¬ã¹ïŒHPïŒçŒçµæ³ãç±ééæ°Žå§ïŒHIPïŒ
æ³ãªã©ã«ãããã®æ圢äœãçŒçµããåŸãæŸå·ããŠ
åŸãããã å å§æ圢ã®éã®å§åã¯ã500ã2000KgïŒcm2çšåºŠ
ã§ããã çŒçµæã®éé žåæ§é°å²æ°ãšããŠã¯ãN2ïŒArïŒ
Heçã®äžæŽ»æ§ã¬ã¹ãïŒCOãåçš®çåæ°ŽçŽ ãª
ã©ããããã¯ãããã®æ··åé°å²æ°ãããã«ã¯ç空
çã®çš®ã ã®ãã®ã§ãã€ãŠããã åžžå§çŒçµæ³ã®å Žåã¯å€§æ°å§ã§ãããçŒçµæã®æž©
床ã¯1600ã1900âããã奜ãŸããã¯1750ã1800â
ã§æå¹ã§ããã 枩床ã1600âããäœãå Žåã«ã¯ãé·æéçŒçµã
ãŠãååã«ã¯ç·»å¯åããã1900âããé«ãå Žå
ã¯ãAl2O3çã®é žåç©ãšSiCããã³ïŒãŸãã¯B4C
ãšã®çžäºåå¿ãæ¿ãããªãããã§ããã çŒçµæéã¯ãéåžž0.5ãïŒæéã§ãããç¹ã«ã
1750âã§ã¯ïŒæéçšåºŠã§ããããšã奜ãŸããã HPçŒçµæ³ã®å Žåããã¬ã¹å§åã¯150ã250KgïŒ
cm2ã枩床ã¯1500ã1800âãç¹ã«1650ã1750âã奜
ãŸããã 枩床ã1500âããäœããšãç·»å¯ãªçŒçµäœãåŸã
ããã1800âããé«ããšãAl2O3çã®äžèšãããª
ãã¯ã¹ç©è³ªãšSiCããã³ïŒãŸãã¯B4Cãšã®çžäºå
å¿ãæ¿ãããªãããã§ããã çŒçµæéã¯ãäžè¬ã«ïŒãïŒæéã§ããã HIPçŒçµæ³ã®å Žåã¯ãåæç²æ«ã®æ圢äœãé žçŽ
é°å²æ°äžãããã¯éé žåæ§é°å²æ°äžïŒäŸãã°ã
1200âãŸã§ç空äžããã®åŸã¯Aré°å²æ°äžçã奜
ãŸããïŒã§äºåçŒçµãã次ãã§HIPçå ã§ãã®äº
åçŒçµäœãçŒçµãããäºåçŒçµã®æž©åºŠã¯1400ã
1650âããã®æéã¯ïŒãïŒæéãšããã®ãããã ãŸããHIPæ³ã«ããã枩床ã¯1200ã1500âãçŒ
çµæéã¯ïŒãïŒæéãå§åã¯1000ã1500KgïŒcm2ã§
ãããé žçŽ é°å²æ°äžãããã¯Arçã®äžæŽ»æ§é°å²
æ°äžã§è¡ãã°ããã ãã®å Žåã宀枩ã§é žçŽ ã¬ã¹ãArã¬ã¹çã300ã
400KgïŒcm2ãŸã§å å§ãããã®åŸãäžèšã®ããã«å
ç±ã«ããå§åããããã ãã®ããã«äœè£œãããµãŒãã¹ã¿ææã¯ãæµæå€
ã500âã§102ã107ΩïœçšåºŠã§ããã400ã800â
ã®æž©åºŠç¯å²ã§äœ¿çšãªããä¿åããŠãæµæå€ã®å€å
ã¯ã»ãšãã©ãªãã€ãã ãŸããã®å€ã50ã480âã§1000ã5000Kã§ã
ã€ãã ãµãŒãã¹ã¿ææã®çµææ¯ãšæµæçïŒÏïŒãšã®é¢
ä¿ã調ã¹ããšã第ïŒå³ã«ç€ºãããã«ãæ·»å éã«ã
ãÏå€åãæ¥å³»ã§ãªããçµææ¯ãå€åãããããš
ã«ããææã®æµæãåŸãããšã容æãšãªã€ãã ãªãã第ïŒå³ã¯ãããªãã¯ã¹ç©è³ªã«é žåã¢ã«ã
ããŠã ãé©çšãããã®ã«ã€ããŠã®ã°ã©ãã§ããã ãŸããé žåã¢ã«ãããŠã ãåèšã®é žåç©ã«ãã
ãå Žåã¯ããµãŒãã¹ã¿ãããçãšããŠé©çšãããš
ãåæå å·¥æ§ãæ¹åãããã æ¬çºæã®ãµãŒãã¹ã¿ææã«ãããŠã¯ã2Aæã
3Aæã4Aæããã³Feããéžã°ããå°ãªããšãäž
皮以äžã®å çŽ ãå«æãããããšã«ããé»æ°æµæå€
ãã³ã³ãããŒã«ã§ãããé»æ°æµæå€ã¯äžèšå çŽ ã®
çš®é¡ã«ãã以äžã®å€ããšãããšãã§ããã å çŽ é»æ°æµæå€ ïŒkÎ©ïŒ 2Aæ 100ã400 3Aæ 130ã140 4Aæ 60ã300 Fe 20ã 80 äžèšã®ããã«ããŠäœæãããµãŒãã¹ã¿ææããµ
ãŒãã¹ã¿ããããšããŠæ¬çºæã®ãµãŒãã¹ã¿çŽ åã«
é©çšããã ãã®ãããªãµãŒãã¹ã¿ãããã®å¯žæ³ã¯ãéåžžã
ã¿ã0.5ã1.0mmããšã³0.5ã1.0mmãåã0.5ã1.0mm
çšåºŠã§ããã æ¬çºæã®ãµãŒãã¹ã¿çŽ åãšããŠã¯ããŸãããã
ããã¬ã©ã¹å°æ¢åãµãŒãã¹ã¿çŽ åã奜ãŸãããã®
ãšããŠæããããã ãã®ãããªã¬ã©ã¹å°æ¢åãµãŒãã¹ã¿çŽ åïŒã¯ã
äŸãã°ç¬¬ïŒå³ã«ç€ºãããã«ããµãŒãã¹ã¿ãããïŒ
ïŒã«äžå¯Ÿã®é»æ¥µå±€ïŒïŒïŒïŒïŒã圢æãããã®é»æ¥µ
å±€ïŒïŒïŒïŒïŒã«ãªãŒãäœïŒïŒïŒïŒïŒãæ¥ç¶ããã
ããã¬ã©ã¹ïŒã§å°æ¢ããæ§é ã®ãã®ã§ããã é»æ¥µå±€ïŒïŒïŒïŒïŒã¯ãéåžžããµãŒãã¹ã¿çŽ åã«
çšããããå°é»æ§ææãããªãé»æ¥µãããã¯å°é»
æ§ææãå«æããé»æ¥µã§ããã°ã©ã®ãããªãã®ã§
ãã€ãŠãããç¹ã«å¶éã¯ãªãã å°é»æ§ææãšããŠã¯ãå ¬ç¥ã®å°é»æ§ç©è³ªãçšã
ãã°ãããAuïŒAgïŒPtïŒPdïŒïŒ·ïŒCuïŒNiïŒ
MoïŒAlïŒFeïŒTiïŒMnïŒNbïŒTaçããããã¯
PtâAuïŒPdâAuïŒPtâPdâAuïŒPdâAgïŒPt
âPdâAgïŒFeâNiâCoïŒFeâNiïŒMoâMnç
ã®åéãªã©ãããã䜿çšå¯èœã§ããã ãã®ãããªé»æ¥µå±€ãšããŠã¯ã第ïŒã«æº¶å°ã«ãã
圢æããã溶å°èã奜ãŸããæããããã ãã®ãããªæº¶å°èã®æ質ã¯ãåŸæ¥å ¬ç¥ã®ãã®ã¯
ãããã䜿çšå¯èœã§ããããç±èšåŒµä¿æ°ã®äžèŽã
ãµãŒãã¹ã¿ããããšã®å¯çæ§çã®ç¹ã§ããã±ã«ã
ãã³éãå«æããåéããŸãã¯ã¢ãªããã³ããã
ãã¯ãã¿ã³ã°ã¹ãã³ãããã¯ããããå«ãåéã
çšããããšã奜ãŸããã ããã±ã«ããã³éãå«æããåéãšããŠã¯ã
Ni20ã60wtïŒ ïŒFe40ã80wtïŒ ã®ãã®ã奜ãŸã
ãããããã«ã¯20wtïŒ ä»¥äžã®ç¯å²ã§CoïŒMnçã
å«æãããŠããŠãããã ãããã®ãã¡ã§ã¯ãç±èšåŒµä¿æ°ã®ç¹ã§ã29wt
ïŒ Niâ17wtïŒ Coâæ®Feã®çµæãæããã³ããŒã«
åéããã³ã41ã43wtïŒ Niâæ®Feã®çµæãæã
ã42ã¢ãã€åéãçšããããšã奜ãŸããã ã³ããŒã«åéã¯ç±èšåŒµç¹æ§ã硬質ã¬ã©ã¹ã®ãã
ãšããäžèŽããŠããã硬質ã¬ã©ã¹ãã»ã©ããã¯ã®
ããŒã¡ããã¯ã·ãŒã«æãšããŠçšããããåéã§ã
ãããŸãã42ã¢ãã€åéã¯ç¡¬è³ªãŸãã¯è»è³ªã¬ã©ã¹
å°çææãšããŠãã©ã³ãžã¹ã¿ããã€ãªãŒãã®ãªãŒ
ãç·ãICã®ãªãŒããã¬ãŒã ããªãŒãã¹ã€ããçš
ãªãŒããªã©çš®ã ã®ããŒã¡ããã¯ã·ãŒã«ãšããŠäœ¿çš
ãããŠããã ãŸããMoïŒïŒ·ããããã¯Moããã³ïŒãŸãã¯
ãå«æããåéã奜é©ã«çšãããããåéã®å Ž
åãMoããã³ïŒãŸãã¯ïŒ·ã20wtïŒ ä»¥äžå«æãã
ããšã奜ãŸããã 溶å°ã«ãã€ãŠåœ¢æããã溶å°èãããªãé»æ¥µé¢
ã¯ãåŸæ¥ã®é»æ¥µåœ¢ææ¹æ³ã§ã¯åŸã«ããRnax10ÎŒïœ
以äžã®é¢ã容æã«åŸãããããã®çºããªãŒãäœïŒ
ïŒïŒïŒïŒãšã®æ¥çæ§ãéåžžã«ããçã®å©ç¹ãã
ãã 溶å°ãçšãããšãã«ã¯ãçŒæãè¡ããªãã®ã§ã
ãµãŒãã¹ã¿ããããæå·ãç¹æ§å£åãçããããš
ããªãããŸããååãªèåãšããããšãã§ããç¹
æ§ã®çµæå£åãçããªããããã«ã¯ããªãŒãçãš
ã®ååãªæ¥çåããããããããã«ã¯ãã¬ã©ã¹å
ãååšããªãã®ã§ãçåç©ãšã®åå¿ã«ããçºæ³¡ã
çããããšããªãããµãŒãã¹ã¿ãããïŒãšã®åå
ãªå¯çæ§ãããããã 溶å°ãšããŠã¯ãã¬ã¹ãã¬ãŒã ãé»æ°ã¢ãŒã¯ãã
ã©ãºãçãç±æºãšããçš®ã ã®æ¹æ³ãå¯èœã§ãã
ãããã®äžã§ãç¹ã«å¯çæ§ãèåã®ã³ã³ãããŒã«
æ§ã®ç¹ã§ãã©ãºã溶å°ãçšããããšã奜ãŸããã ãã©ãºã溶å°ã¯ãç±ãã©ãºããæããé«ç±ãšã
ã«ã®ãŒãå©çšããŠç²æ«ææã溶èãããããåºæ
è¡šé¢ã«å¹ãä»ããŠè¢«èã圢æããè¡šé¢å å·¥æè¡ã§
ããã倧æ°å§ã®ããšã§ãå·éïŒ100ã300âïŒã®çŽ
æã«ãå¯çåã®ãã被èãéãå å·¥é床ã§åŸãã
ãšãã§ããè€å被èã®çæã容æã§ããã äžè¬çãªãã©ãºã溶å°ã®æ¹æ³ãšããŠã¯ãæ°Žå·ã
ããéœæ¥µãšé°æ¥µãšã®éã«é«åšæ³¢ã¹ã¿ãŒã¿ãŒãçŽæµ
é»æºã«ããã¢ãŒã¯ãæç¶ããããããžäŸçµŠããã
ãã©ãºãã¬ã¹ãè¶ é«æž©ã«å ç±ãããã©ãºããžãšã
ããçºçãããããã©ãºããžãšããçæã¬ã¹ã¯ã
ArïŒHeïŒH2ïŒN2çã®ã¬ã¹ããã³æ··åã¬ã¹ã䜿
çšãããã ãã®ãã©ãºããžãšããã®äžãžç²æ«æº¶å°ææãäŸ
絊ãããšã溶å°ææã¯å ç±æº¶èãããå éãããŠ
åºæè¡šé¢ã«è¡çªããåºæã«æ¿¡ããªããç±ã奪ã
ããåºåããŠè¢«èŠã圢æããã ãã®å Žåãéåžžãã©ãºãã¬ã¹æµéã¯ïŒã100
ïŒminçšåºŠãåºæ¿æž©åºŠã¯100ã300âçšåºŠããã©
ãºããžãšãã枩床ã¯10000ã30000âçšåºŠãããã«
åæç²ååŸã¯10ã60ÎŒïœçšåºŠã§ããã ãã®ããã«ããŠåœ¢æãããé»æ¥µå±€ïŒïŒïŒïŒïŒã®
åãã¯ãéåžžïŒã200ÎŒïœãç¹ã«20ã150ÎŒïœãã
ã奜ãŸããã¯50ã100ÎŒïœã§ããã5ÎŒïœæªæºã§ã¯
çç£æ§ã®ç¹ã§äžå©ã§ããã200ÎŒïœä»¥äžã§ã¯æå³
ããªãã ãŸããé»æ¥µå±€ïŒïŒïŒïŒïŒã®Rnaxã¯10ã40ÎŒïœçš
床ã奜ãŸããã 溶å°èããæ§æãããé»æ¥µå±€ïŒïŒïŒïŒïŒã¯åçš®
äžå°å±€ãæããŠãããã ãã®å Žåäžå°å±€ã®æ質ãšããŠã¯åçš®éå±ã®èžç
èçãããã 第ïŒã«å¥œãŸããæ æ§ãšããŠã¯ãäžèšã®ãããªïŒ
å±€æ§é ãããã ãã®å Žåãå Žåã«ãã€ãŠã¯ãäžå±€ã®ã¿ã§ãã
ãã äžå±€æ§é ã®å Žåãé»æ¥µå±€ïŒïŒïŒïŒïŒã¯ãã¿ã³ã°
ã¹ãã³ãã¢ãªããã³ããã¿ã³ãããã±ã«ãã¿ã³ã¿
ã«ãããªããéãéãéãçœéããã³ãã©ãžãŠã
ããéžã°ããéå±åäœããŸãã¯ãããã®ãã¡ã®äž
皮以äžãå«ãåéãå°é»æ§ææãšããæ°çžããã
ã¯æ¶²çžæé·æ³ã«ãã圢æãããããšã奜ãŸããã
ãã®ãšããµãŒãã¹ã¿ææã®é»æ°æµæå€å€åãæå°
éã«ãããããããšããå¹æãçºæ®ããããéå±
åäœãçšããå Žåãç¹ã«ãã¿ã³ãããã±ã«ãã¿ã³
ã°ã¹ãã³ãã¢ãªããã³ãã¿ã³ã¿ã«ãããªããéã
çšããããšã奜ãŸããããã®å ŽåããµãŒãã¹ã¿ã
ãããšã®å¯çæ§çã®ç¹ã§ãã奜ãŸããçµæãåŸ
ãã ãŸããæ¬çºæã«ãããŠã¯ããããã®ãã¡ã®äžçš®
以äžãå«ãåéã奜é©ã«çšããããããã®å Žåçš
ããããåéãšããŠã¯ç±èšåŒµä¿æ°çã®çç±ã«ãã
FeâNiç³»ãFeâNiâCoç³»çäžèšã®éå±ãç·èš50
ïŒ ä»¥äžå«æããã®ãçšããããšã奜ãŸããã æ°çžãããã¯æ¶²çžæé·æ³ã«ãã圢æãããããš
ã奜ãŸããããã®ãšããµãŒãã¹ã¿ææã®é»æ°æµæ
å€å€åãæå°éã«ããããããã é»æ¥µå±€ãããã®ãããªãæ°çžãããã¯æ¶²çžæé·
èã§åœ¢æããæ¹æ³ãšããŠã¯ãé»è§£ã¡ãããç¡é»è§£
ã¡ãããèžçãã¹ããã¿ãªã³ã°ãã€ãªã³ãã¬ãŒã
ã€ã³ã°çã®åŸæ¥å ¬ç¥ã®æ¹æ³ã¯ããããå¯èœã§ãã
ããçç£æ§ãèèå質åçã®çç±ã«ãããèžçã«
ãã圢æããããšã奜ãŸããã èžçã«ããé»æ¥µå±€ã圢æããå Žåãèžçã®æ¹æ³
ã¯åŸæ¥å ¬ç¥ã®æ¹æ³ã«ããã°ããã ãŸããåŸè¿°ã®ããã«é»æ¥µå±€ç¬¬ïŒå±€ã圢æããå Ž
åã«ã¯ãé»æ¥µå±€åœ¢æåŸã«ãåŒ±é žçã§ãã®è¡šé¢ãè±
èæŽæµãããšã第ïŒå±€ã圢æããéã«ãæ¥çæ§ãª
ãŒããã¯æ§çã®ç¹ã§ãã奜ãŸããçµæãåŸãã ãã®ãããªé»æ¥µå±€ã®åãã¯éåžž0.05ã5ÎŒïœãã
ã奜ãŸããã¯0.3ã2.0ÎŒïœã§ããã 0.05ÎŒïœæªæºã§ã¯æ¬çºæã®å¹æããªãããŸãã
5ÎŒïœãè¶ ãããšçç£æ§ãäŸ¡æ Œã®ç¹ã§åé¡ãçã
ãããã§ããã ãã®ãããªå Žåãäžèšã®ãšããã奜ãŸããæ æ§
ã¯ããã®ãããªé»æ¥µå±€ã®äžã«é»æ¥µå±€ç¬¬ïŒå±€ã圢æ
ãããããªæ æ§ã§ããã ãã®æãå°æ¢ã¬ã©ã¹ããªãŒãäœãšã®ãã¬æ§çã®
ç¹ã§ãã奜ãŸããçµæãåŸãã æ¬çºæã®é»æ¥µå±€ç¬¬ïŒå±€ãšããŠã¯ãéåžžã®ãµãŒã
ã¹ã¿çŽ åã«çšããããé»æ¥µå±€ã¯ãããã䜿çšå¯èœ
ã§ããããç±èšåŒµçãé«æž©ã§ã®ä¿¡é Œæ§ãé»æ¥µå±€ãš
ã®æ¥çæ§çã®ç¹ã§ãäžèšã®ãã®ãçšããããšã奜
ãŸããã ãïŒã éå±åäœãŸãã¯åéã®æ°çžæé·èã èææãšããŠã¯ç¹ã«å¶éã¯ãªãããç¹ã«éãçœ
éããã©ãžãŠã ã®åäœãããã¯ãããã®ïŒçš®ä»¥äž
ãå«ãåéã奜ãŸããã ãããã®ãã®ãçšãããšããç¹ã«é«æž©ã§ã®ä¿¡é Œ
æ§ãçç£æ§çã®ç¹ã§ãã奜ãŸããçµæãåŸãã
ãã ãŸããéãéãçœéããã©ãžãŠã ã®åéãçšã
ãå Žåãéãéãçœéããã©ãžãŠã ã¯åéå šäœã®
50ïŒ ä»¥äžå«æãããããšã奜ãŸããã ãã®ãããªçµæã®é»æ¥µå±€ç¬¬ïŒå±€ã¯ãæ°çžæé·è
ã«ãã圢æãããããšã奜ãŸããããã®ãªãã§ã
ç¹ã«èžçã«ãã圢æãããããšã奜ãŸããã èžçã«ãããã®ãããªçµæã®é»æ¥µå±€ç¬¬ïŒå±€ã圢
æããæ¹æ³ã¯ãåŸæ¥å ¬ç¥ã®æ¹æ³ã«ããã°ãããäŸ
ãã°äœåå§ã¯ïŒÃ10-3ãïŒÃ10-4PaçšåºŠãšããã°
ããã ãŸãããã®ãããªå Žåã®é»æ¥µå±€ç¬¬ïŒå±€ã®åã
ã¯ãéåžž0.05ã5ÎŒïœãã奜ãŸããã¯0.3ã2.0ÎŒïœã§
ããã0.05ÎŒïœæªæºã§ã¯æ¬çºæã®å¹æããªãããŸ
ãã5ÎŒïœãè¶ ãããšçç£æ§ãäŸ¡æ Œã®ç¹ã§åé¡ã
çããããã§ããã ãïŒã ã¡ããè ã¡ããèææãšããŠã¯ç¹ã«å¶éã¯ãªãããç¹
ã«ãéãçœéãŸãã¯ãã©ãžãŠã ãŸãã¯ããã±ã«ã®
ãã¡ã®ïŒçš®ä»¥äžãç¹ã«éãçœéãŸãã¯ãã©ãžãŠã
ãå«ãããšã奜ãŸããã ãããã®ãã®ãçšãããšããç¹ã«é«æž©ã§ã®ä¿¡é Œ
æ§ãäŸ¡æ Œçã®ç¹ã§ãã奜ãŸããçµæãåŸãããã ã¡ããã®æ¹æ³ãšããŠã¯ãé»è§£ã¡ãããç¡é»è§£ã¡
ããçãåŸæ¥å ¬ç¥ã®æ¹æ³ããããã䜿çšå¯èœã§ã
ãããçŽåºŠãå¯çæ§ã®ç¹ã§ãé»è§£ã¡ããã«ãŠè¡ãª
ãããšã奜ãŸããã é»è§£ã¡ãããçšããå Žåãé»è§£æµŽçµæãçšãã
é»æ¥µãé»è§£æ§œãäœæ¥æž©åºŠçã¯ãå ¬ç¥ã®çš®ã ã®ãã®
ãçšããã°ããããŸããé»æµå¯åºŠã¯0.5ã2.0AïŒ
ïœm2çšåºŠãšããã°ããã ãªããäžèšåéå±ã¯éåžžåäœã§å«æããããã
å Žåã«ãã€ãŠã¯ãã®ïŒçš®ãŸãã¯ïŒçš®ä»¥äžãç·èš
50wtïŒ ä»¥äžå«æããããã®ã§ãã€ãŠãããã ãŸãããã®ãããªå Žåã®é»æ¥µå±€ç¬¬ïŒå±€ã®åãã¯
éåžž0.5ã5ÎŒïœã奜ãŸããã¯ïŒã3ÎŒïœã§ããã 0.5ÎŒïœæªæºã§ã¯æ¬çºæã®å¹æããªãããŸãã5ÎŒ
ïœãè¶ ãããšçç£æ§ãäŸ¡æ Œã®ç¹ã§åé¡ãçããã
ãã§ããã ãïŒã éå±ç® éå±ç®ææãšããŠã¯ãç¹ã«å¶éã¯ãªãããç¹ã«
ããã±ã«ãéãã¿ã³ã°ã¹ãã³ããã¿ã³ãã¢ãªãã
ã³ãããã¯éã®åäœããããã¯ãããã®ãã¡ã®ïŒ
皮以äžãå«ãåéã奜ãŸããã ãããã®ãã®ãçšãããšããç¹ã«é«æž©ã§ã®ä¿¡é Œ
æ§çã®ç¹ã§ãã奜ãŸããçµæãåŸãããã ãã®å Žåãéå±ç®ãšããŠã¯ã第ïŒã«ããã±ã«ã
ãã³éãå«æãããã®ã奜ãŸãããããã±ã«ãã
ã³éãå«æããåéãšããŠã¯ãNi20ã60wtïŒ ã
Fe40ã80wtïŒ ã®ãã®ã奜ãŸããããããã«ã¯
20wtïŒ ä»¥äžã®ç¯å²ã§ã³ãã«ãããã³ã¬ã³çãå«
æãããŠããŠãããã ãããã®ãã¡ã§ã¯ãç±èšåŒµä¿æ°ã®ç¹ã§ã29wt
ïŒ Niâ17wtïŒ Coâæ®Feã®çµæãæããã³ããŒã«
åéããã³ã41ã43wtïŒ Niâæ®Feã®çµæãæã
ã42ã¢ãã€åéãçšããããšã奜ãŸããã ãŸããéå±ç®ãšããŠã¯ãã¿ã³ã°ã¹ãã³ãã¢ãªã
ãã³ããã¿ã³ãããã¯éã奜ãŸããããããã
ã¯ãéå±åäœã§ãã€ãŠãããããã®ãã¡ã®ïŒçš®ä»¥
äžã50wtïŒ ä»¥äžå«ãåéã§ãã€ãŠãããã ãã®ãããªéå±ã®éå±ç®ãçšããŠé»æ¥µå±€ç¬¬ïŒå±€
ã圢æããæ¹æ³ãšããŠã¯ãåŸæ¥å ¬ç¥ã®æ¹æ³ã¯ãã
ãã䜿çšå¯èœã§ãããäŸãã°éãçœéããã©ãžãŠ
ã ãé çãçšããŠããŠä»ãçãè¡ãªãã°ãããã
ã®å ŽåãããŠä»ãã®æ¹æ³ãæ¡ä»¶ã¯ç空äžãããä»
枩床ã1000ã1200âã«ãŠå§çããçã®åŸæ¥å ¬ç¥ã®
æ¹æ³ã§ããã ãŸãããã®ãããªå Žåã®é»æ¥µå±€ç¬¬ïŒå±€ã®åãã¯
éåžžïŒã200ÎŒïœã奜ãŸããã¯20ã50ÎŒïœã§ããã 5ÎŒïœæªæºã§ã¯çç£æ§ãæªãããŸãã50ÎŒïœãè¶
ãããšäŸ¡æ Œã圢ç¶ã®ç¹ã§åé¡ãšãªãããã§ããã ãïŒã 溶å°è 溶å°èææãšããŠã¯ãç¹ã«å¶éã¯ãªãããç¹ã«
ããã±ã«ããã³éãå«æããåéããŸãã¯ã¢ãªã
ãã³ãããã¯ã¿ã³ã°ã¹ãã³ãªãããã®åéã奜ãŸ
ããã詳现ã¯åèšããéãã§ããã ãããã®ãã®ãçšãããšããç¹ã«é«æž©ã§ã®ä¿¡é Œ
æ§ãçç£æ§çã®ç¹ã§ãã奜ãŸããçµæãåŸãã
ãã ããã±ã«ããã³éãå«æããåéãšããŠã¯ãå
èšãïŒãã«èšè¿°ãããã®ãçšããããšã奜ãŸã
ãã ãŸãããã®å Žåã«ãããŠã¯ãã¢ãªããã³ãã¿ã³
ã°ã¹ãã³ããããã¯ã¢ãªããã³ããã³ïŒãŸãã¯ã¿
ã³ã°ã¹ãã³ãå«æããåéã奜é©ã«çšããããã
åéã®å Žåãã¢ãªããã³ããã³ïŒãŸãã¯ã¿ã³ã°ã¹
ãã³ã50wtïŒ ä»¥äžå«æããããšã奜ãŸããã 溶å°ãšããŠã¯ã溶å°è圢æã®ãšããã§æããæ¹
æ³ããšããã¬ã¹ãã¬ãŒã ãé»æ°ã¢ãŒã¯ããã©ãºã
çãç±æºãšããçš®ã ã®æ¹æ³ãå¯èœã§ãããããã®
äžã§ãç¹ã«å¯çæ§ãèåã³ã³ãããŒã«ã®ç¹ã§ãã©
ãºã溶å°ãçšããããšã奜ãŸããã 第ïŒã®å¥œãŸããæ æ§ã¯ãé»æ¥µå±€ïŒïŒïŒïŒïŒãã
å°é»æ§ããŒã¹ããçŒæããããããåèæ³ã«ãã
圢æããããã®ã§ããããã®ãšãå®è³ªçã«ã¬ã©ã¹
ãå«æããªããã®ãšããã®ãããããã®ãããªå°
é»æ§ããŒã¹ããšããŠäžè¬ã«åžè²©ãããŠãããã®
ã«ãããªããã¬ã¹ã¿ã€ãå°é»æ§ããŒã¹ããããã
ãã®å°é»æ§ããŒã¹ãã¯ãéåžžãå°é»æ§ææããã€
ã³ãããã³æº¶å€ãããã«å¥œãŸããã¯é žåç©ãæ··å
ããŠäœè£œãããã å°é»æ§ææãšããŠã¯ãå ¬ç¥ã®å°é»æ§ç©è³ªãçšã
ãã°ãããAuïŒAgïŒPtïŒPdïŒïŒ·ïŒCuïŒNiïŒ
MoïŒAlïŒFeïŒTiïŒMnçããããã¯PtâAuïŒ
PdâAuïŒPtâPdâAuïŒPdâAgïŒPtâPdâ
AgïŒFeâNiâCoïŒFeâNiïŒMoâMnçã®åé
ãªã©ãããã䜿çšå¯èœã§ããã ãã®ãããªå°é»æ§ææãé žåç©ã¯ãéåžž0.1ã
5ÎŒïœçšåºŠã®ç²åŸã«ãŠçšããããšã奜ãŸããã 奜ãŸããæ æ§ãšããŠæ·»å ãããé žåç©ãšããŠ
ã¯ãTiO2ïŒCuOïŒCdOïŒMnOïŒCaOïŒZnOïŒ
Bi2O3ïŒV2O5ïŒNiOçã®å ¬ç¥ã®ãã®ãçšããã°ã
ãã ãã€ã³ããšããŠã¯ããšãã«ã»ã«ããŒã¹çã®å ¬ç¥
ã®ãã®ãçšããã°ããã 溶å€ãšããŠã¯ãããã«ã»ã«ããŒã¹ãããã«ã«ã«
ãããŒã«ã¢ã»ããŒãããã«ãããªãŒã«çã®å ¬ç¥ã®
ãã®ãçšããã°ãããããŒã¹ãç²åºŠã120ã
320aã»ïœã«ãªãããã«ããããšã奜ãŸããã ãªããé žåç©ã¯åºåœ¢åäž20wtïŒ ä»¥äžãç¹ã«0.05
ã10wtïŒ ã§ããããšã奜ãŸããã ããããå«æããå°é»æ§ããŒã¹ããããµãŒãã¹
ã¿ãããã«ã¹ã¯ãªãŒã³å°å·çã«ããå¡åžããçŒæ
ããŠé»æ¥µå±€ãšãããçŒæ枩床ã¯500ã1400âãçŒ
ææéã¯0.5ãïŒæéçšåºŠã§ããããšã奜ãŸããã ãŸããçŒæé°å²æ°ã¯ãé žçŽ ååšé°å²æ°ã§ãã€ãŠ
ããäžæŽ»æ§ã¬ã¹é°å²æ°ã§ãã€ãŠãããã ãã®ããã«ããŠåœ¢æãããé»æ¥µå±€ã¯ãã¬ã©ã¹ã
å®è³ªçã«å«æããªãããããµãŒãã¹ã¿ãããäžã®
çåç©ãšåå¿ããŠçºæ³¡ããããšããªããé»æ¥µå±€ãš
ãµãŒãã¹ã¿ããããšã®å¯çæ§ãæ¥çæ§ãè¯å¥œã§ã
ãããã®ä»ãã¢ã«ã³ãã·ããã¡ã¿ããªãŒã¬ããã¯
çã®åçš®ææ©éå±ååç©ããææ©éå±é¯äœçã®æ
æ©éå±ãçšããããŒã¹ããå¯èœã§ããããªããã¬
ã©ã¹ãå®è³ªçã«å«æããªãããã«ã¯ãã¬ã©ã¹åã
ç¹ã«SiO2ïŒB2O3ïŒPbOïŒP2O5ãåºåœ¢åäž1wtïŒ
以äžã奜ãŸããã¯ã0.3wtïŒ ä»¥äžãç¹ã«å¥œãŸããã ãã®ããã«ããŠåœ¢æãããé»æ¥µå±€ïŒïŒïŒïŒïŒã®
åãã¯ãéåžžïŒã200ÎŒïœãç¹ã«10ã50ÎŒïœããã
奜ãŸããã¯15ã30ÎŒïœã§ããã5ÎŒïœæªæºã§ã¯çç£
æ§ã®ç¹ã§äžå©ã§ããã200ÎŒïœä»¥äžã§ã¯æå³ããª
ãã ãµãŒãã¹ã¿çŽ åïŒã®ãªãŒãäœïŒïŒïŒïŒïŒãšããŠ
çšãããªãŒãç·ã¯ãåŸæ¥å ¬ç¥ã®ãã®ã¯ãããã䜿
çšå¯èœã§ããããç±èšåŒµçãã³ã¹ãçã®ç¹ã§ã
29wtïŒ Niâ17wtïŒ Coâæ®Feã®çµæãæããã³
ããŒã«åéããã³41ã43wtïŒ Niâæ®Feã®çµæã
æãã42ã¢ãã€åéãçšããããšã奜ãŸããã ã³ããŒã«åéã¯ç±èšåŒµç¹æ§ã硬質ã¬ã©ã¹ã®ãã
ãšããäžèŽããŠããã硬質ã¬ã©ã¹ãã»ã©ããã¯ã®
ããŒã¡ããã¯ã·ãŒã«æãšããŠçšããããåéã§ã
ãããŸãã42ã¢ãã€åéã¯ç¡¬è³ªãŸãã¯è»è³ªã¬ã©ã¹
å°çææãšããŠãã©ã³ãžã¹ã¿ããã€ãªãŒãã®ãªãŒ
ãç·ãICã®ãªãŒããã¬ãŒã ããªãŒãã¹ã€ããçš
ã®ãªãŒããªã©ãçš®ã ã®ããŒã¡ããã¯ã·ãŒã«ãšããŠ
䜿çšãããŠããã ãã®ãããªãªãŒãç·ã¯ããã®è¡šé¢ãNiãã€ã
çã®èç±èã§è¢«èŠãããšãã¬ã©ã¹å°æ¢æã®é žåé²
æ¢ãèç±æ§ã®ç¹ã§ããäžå±€å¥œãŸããçµæãåŸãã 次ã«ããã®ãããªãªãŒãç·ãé»æ¥µå±€ã«æ¥ç¶ãã
æ¹æ³ãšããŠã¯ã第ïŒå³ã«ç€ºãããã«éããŒã¹ãç
ã®å°é»æ§ããŒã¹ãïŒïŒïŒïŒïŒãçšããŠé»æ°çæ¥è§Š
ãããæ¥ç¶ããæ¹æ³ããã©ã¬ã«ã®ã€ãã溶æ¥ã«ã
ãæ¹æ³ãè¶ é³æ³¢ãã³ããŒã«ããæ¹æ³çãçš®ã ã®æ¹
æ³ãå¯èœã§ããã å°é»æ§ããŒã¹ããçšããå Žåã¯ã補é ã容æãš
ãªããçŽ åãžã®ãã¡ãŒãžã®å°ããç¹ã§å¥œãŸãã
ãããã®å ŽåãããŒã¹ãã¯å°é»æ§ç²åãšæº¶å€ãšå¿
èŠã«å¿ããã€ã³ããšãå«æããäžèšãšåæ§ãªçç±
ããã¬ã©ã¹åãå«æããªãã¬ã©ã¹ããªããã¬ã¹ã®
ãã®ãçšããã®ã奜ãŸããã ãªããå°é»æ§ããŒã¹ãã¯ãåèšã®é»æ¥µå±€ã«çšã
ããã®ãšåãããŒã¹ããçšããŠãããã ãŸããçŒæã¯ãé»æ¥µå±€ãåèæ³ã«ãã圢æãã
å Žåãé»æ¥µå±€ã®çŒæãšåæã«è¡ãªã€ãŠãããã ãŸããã¹ããã溶æ¥ã®æ¹æ³ãšããŠã¯ããªãŒãç·
ã溶æ¥ããã®ã«å åãªæéã®éãèç枩床ã«ãã
ããã«é»æµãæµãæ¹æ³ãããµãŒãã¹ã¿çŽ åå šäœã
çã®äžã«çœ®ããèç枩床ã«ããæ¹æ³çãå ¬ç¥ã®æ¹
æ³ã«ããã°ãããã¹ããã溶æ¥ã®æ¹æ³ã¯ãç¹å ¬æ
42â19061å·å ¬å ±çã«è©³è¿°ãããŠããã ãŸããè¶ é³æ³¢ãã³ããŒãšããŠã¯ãåŸæ¥å ¬ç¥ã®æ¹
æ³ã«ããã°ããã ãªãããªãŒããèšããã«ãµãŒãã¹ã¿çŽ åãæ§æ
ããŠãããã æ¬çºæã®ã¬ã©ã¹å°æ¢åãµãŒãã¹ã¿çŽ åã«çšãã
ã¬ã©ã¹ïŒãšããŠã¯ãã¬ã©ã¹è»¢ç§»æž©åºŠã奜ãŸããã¯
600â以äžããã奜ãŸããã¯600ã700âããŸãã
äœæ¥æž©åºŠã1000â以äžããã奜ãŸããã¯800ã
1000âã®ã¬ã©ã¹ã§ããã ã¬ã©ã¹ïŒã®çµæãšããŠã¯ãã¬ã©ã¹è»¢ç§»æž©åºŠãã
ã³äœæ¥æž©åºŠãäžèšã®ç¯å²å ã®ãã®ã§ããã°ç¹ã«å¶
éã¯ãªãããã¢ã«ã«ãªåé¡éå±ãå«æããããŠã±
ã€é žã¬ã©ã¹ãçšããããšã奜ãŸããã ã¢ã«ã«ãªåé¡éå±ãå«æããããŠã±ã€é žã¬ã©ã¹
ãçšããå Žåããã®çµæãšããŠã¯ãSiO2ã®å«æ
éã40ã85wtïŒ ã奜ãŸããã¯40ã70wtïŒ ãB2O3
ã®å«æéãïŒã40wtïŒ ã奜ãŸããã¯10ã40wtïŒ ã
ããã«å¥œãŸããã¯21ã40wtïŒ ã®ãã®ã奜ãŸããã
ãŸããã¢ã«ã«ãªåé¡éå±ã®å«æéã¯ãïŒã30wt
ïŒ ã§ããããšã奜ãŸããããã®ãããªã¬ã©ã¹äžã«
ã¯ãAl2O3ãå«æãããŠããŠãããããã®å Žåã
Al2O3ã®å«æéã¯5wtïŒ ä»¥äžã§ããããšã奜ãŸã
ãã ãªãããããã®ã¬ã©ã¹ã¯ãé«æž©ã§ã®çµ¶çžæµæå€
ã®äœäžã®åå ãšãªããããNaïŒïŒ«çã®ã¢ã«ã«ãª
æåã1wtïŒ ä»¥äžã§ããããšã奜ãŸããã ãã®ãããªãµãŒãã¹ã¿çŽ åã®è£œé æ¹æ³ã®äžäŸã
以äžã«ç°¡åã«èª¬æããã äŸãã°ãçŽåŸïŒã€ã³ãçšåºŠãåã0.5mmçšåºŠã®
åèšã®çŒçµäœã®ãŠãšããäœè£œããããã®ãŠãšãã®
äž¡é¢ã«ãé»æ¥µå±€ã圢æããã ãã®ããã«åœ¢æããããŠãšããããã€ã·ã³ã°ãœ
ãŒçã«ããäžèŸº0.75mmçšåºŠã®æ£æ¹åœ¢ã«åæããã
ããåããã ãã®ããã«ããŠåŸããããããã«ãçŽåŸ0.2ã
0.5mmãé·ã20ã100mmçšåºŠã®ãªãŒãç·ã奜ãŸãã
ã¯æ質ãã³ããŒã«åéãŸãã¯42ã¢ãã€åéã®ãªãŒ
ãç·ããåèšã®æ¹æ³ãçšããŠæ¥ç¶ããã ãã®ãããªãããããçŽåŸ1.5ã2.5mmçšåºŠãé·
ãïŒmmçšåºŠã®ã¬ã©ã¹ç®¡ã奜ãŸããã¯ããŠã±ã€é žã¬
ã©ã¹è£œã®ã¬ã©ã¹ç®¡ã«æ¿å ¥ãã750ã900âçšåºŠã®æž©
床ã«ãŠArã¬ã¹é°å²æ°äžçã®äžæŽ»æ§é°å²æ°äžã«ãŠ
å°æ¢ããã°ããã ãã®åŸå¿ èŠã«å¿ãã500ã750âã10ã100æé
çšåºŠãšãŒãžã³ã°ãè¡ãã ãŸããæ¬çºæã®ãµãŒãã¹ã¿ææã¯ããµãŒãã¹ã¿
ææã«å°é»äœææãçŽæ¥ãŸãã¯ä»åšå±€ãä»ããŠå
å§äžå ç±ããŠäžäœåãããããããäžäœåã®ãµãŒ
ãã¹ã¿çŽ åã®ãµãŒãã¹ã¿ãããã«ãé©çšã§ããã æ¬çºæã®ãµãŒãã¹ã¿ææãçšããäžäœåã®ãµãŒ
ãã¹ã¿çŽ åãšããŠã¯ããµãŒãã¹ã¿ææã«å°é»äœæ
æãçŽæ¥ãŸãã¯ä»åšå±€ãä»ããŠå å§äžå ç±ããŠäž
äœåããããããäžäœåã®ãã®ãæãããããã
ãå ·äœçã«ã¯ããã®ãããªãµãŒãã¹ã¿çŽ åïŒïŒ
ã¯ã第ïŒïœå³ã第ïŒïœå³ã«ç€ºãããããã«ãµãŒã
ã¹ã¿ãããïŒïŒãšéåžžïŒå¯Ÿã®å°é»äœïŒïŒïŒïŒïŒã®
ä»ã絶çžäœïŒïŒç¬¬ïŒïœå³ã第ïŒïœå³ïŒãé«èç¹é
å±ç³»ã®ä»åšå±€ïŒïŒç¬¬ïŒïœå³ïŒãªã©ãå å§äžå ç±ã
ãŠäžäœåãããã®ã§ããã ãã®ãããªãµãŒãã¹ã¿çŽ åãšããŠã¯ãç¹é¡æ61
â282256å·ãå61â282257å·ãå61â286533å·ã
å61â286534å·ãªã©ã«èšèŒã®ãã®ãæããããã ããã«å ·äœçã«èª¬æãããªãã°ã第ïŒïœå³ã«ç€º
ãæ§é ã§ã¯ããµãŒãã¹ã¿çŽ åïŒïŒã¯ãäŸãã°å€åœ¢
è§æ±ç¶ã®åœ¢ç¶ã§ããã絶çžäœïŒã®å 端ã«ãµãŒãã¹
ã¿ãããïŒïŒãæãããµãŒãã¹ã¿ãããïŒïŒãã
ã³çµ¶çžäœïŒã®äž¡åŽé¢ãèŠãããã«å°é»äœïŒïŒãæ
ãããã®ã§ããã ãã®å Žåãå°é»äœïŒïŒïŒïŒïŒããã³çµ¶çžäœïŒã¯
ãµãŒãã¹ã¿ãããïŒïŒã®åŸç«¯ã«æ¥ç¶ãããããªæ§
é ãšããããšãã§ããã ãŸã第ïŒïœå³ã«ç€ºãããã«ã第ïŒïœå³ã«ç€ºãæ§
é ã«ãŠäžäœååŸã絶çžäœïŒãé€å»ããæ§é ãããª
ãã¡ããµãŒãã¹ã¿ãããïŒïŒã®åŽé¢ãèŠãããã«
ïŒå¯Ÿã®å°é»äœïŒïŒïŒïŒïŒã®ã¿ãæããæ§é ãšããŠ
ãããã ãã®å Žåå°é»äœïŒïŒïŒïŒïŒã¯ããµãŒãã¹ã¿ãã
ãïŒïŒã®åŸç«¯ã«æ¥ç¶ãããããªæ§é ãšããããšã
ã§ããã ãŸãã第ïŒïœå³ã«ç€ºãããã«ãäžèšã®ãããªæ
æ§ã«ãããŠããµãŒãã¹ã¿ãããïŒïŒãšå°é»äœïŒ
ïŒïŒïŒïŒãšã®éã«é«èç¹éå±ç³»ã®ä»åšå±€ïŒãèšã
ãæ§é ãšããŠãããã ãŸãã第ïŒïœå³ã«ç€ºããããªç©å±€æ§é ã®å€çŽ å
åãšããŠãããã äžèšã«ãããŠäŸç€ºãããµãŒãã¹ã¿çŽ åã«äœ¿çšã
ã絶çžäœææãšããŠã¯ãæ¬çºæã®ãµãŒãã¹ã¿ææ
ããé«æµæã®ææã§ããã°ããããµãŒãã¹ã¿ææ
ã®æµæå€ããã102ã1010åçšåºŠã奜ãŸããã¯108
ã1010åçšåºŠé«ããã®ã§ããã°ãããå ·äœçã«ã¯
Al2O3ïŒMgOïŒSi3N4ïŒAlNïŒBNãªã©ãæãã
ããã 絶çžäœãé€å»ããæ§é ãšããå Žåã¯ãæåã«èš
ãã絶çžäœãé€å»ããããšã«ãªããããã®ç¹ãã
ã¿ãŠBNçã奜é©ã§ããã å°é»äœææãšããŠã¯ãå ¬ç¥ã®åçš®å°é»æ§ç¡æ©æ
æãªã©ãæããããå ·äœçã«ã¯ãããã®ãããã¯
äœçãçšããŠäžäœåããã°ããããã®ãããªãã
ãã¯äœãšããŠã¯åçš®ã»ã©ããã¯ææçããããäŸ
ãã°ãSiCâTiCç³»ãSiCâCrBç³»ãZrNç³»ã
MoSiïŒLaCrO3ïŒAl2O3âTiCïŒ Al2O3âCr3C2ïŒ Al2O3âTiNïŒAl2O3âTiB2çãæããããã äžèšã®ãªãã§ããAl2O3âTiCïŒ Al2O3âCr3C2ïŒ Al2O3âTiNïŒAl2O3âTiB2ã奜ãŸããã æ¬çºæã«ãããŠã¯ãµãŒãã¹ã¿ãããïŒïŒãšå°é»
äœïŒïŒïŒïŒïŒãšã®éã®é«èç¹éå±ç³»ã®ä»åšå±€ãèš
ããŠãããããã®å Žåã®åãã¯0.01ã100ÎŒïœçšåºŠ
ãšããã ä»åšãããé«èç¹éå±ç³»ã®ä»åšå±€ãæ§æããæ
æãšããŠã¯ãèç¹800ã4000âçšåºŠãæµæããµãŒ
ãã¹ã¿ææã®10-2ã10-10çšåºŠã®ãã®ã奜ãŸããã ãã®ãããªãã®ãšããŠã¯ãAuïŒPtïŒPdïŒ
AuïŒPdïŒAgïŒPdïŒPtïŒPdïŒMoïŒTiïŒïŒ·ïŒTiïŒ
MoïŒïŒ·ïŒTiçã®åäžéå±ãŸãã¯åéãªã©ãã
ãã æ¬çºæã®ãµãŒãã¹ã¿çŽ åã¯ãåè¿°ã®ããã«å å§
äžã«ãŠå ç±ããŠåŸãããã äŸãã°ã第ïŒïœå³ã«ç€ºãæ æ§ã§ã¯ããŸãããµãŒ
ãã¹ã¿ææã絶çžäœææããã³å°é»äœææã«ã€ã
ãŠãããããã»ã©ããã¯ææã«ãã€ãŠã¯çŒçµãæœ
ããæå®ã®å€§ããã®ã·ãŒãç¶ã®ãããã¯äœãäœè£œ
ããã 次ãã§ç¬¬ïŒïœ å³ã«ç€ºãããã«ããµãŒãã¹ã¿ææ
ïŒïŒïŒã®äž¡åŽé¢ã«æ¥ããŠçµ¶çžäœææïŒïŒïŒïŒïŒã
é ãããã®äžé¢ãšäžé¢ã«æ¥ããŠããããå°é»äœæ
æïŒïŒïŒïŒïŒïŒïŒãéããããããå å§äžå ç±
ãããã®åŸç¬¬ïŒïœå³ã«ç€ºãããã«ææã®å€§ããã«
åæããæ¹æ³ãªã©ãæããããã å³ç€ºäŸã§ã¯ããµãŒãã¹ã¿ææãšçµ¶çžäœææãšã®
åãã¯åãã«ããŠããããææãšãããµãŒãã¹ã¿
çŽ åã®åœ¢ç¶ã«ããããŠãäºãäœè£œããã·ãŒãç¶ã®
ãã®ã®åœ¢ç¶ãé©å®æ±ºå®ããã°ããã ãã®ãããªæ¹æ³ã«ããã°ãåæã«50ãæ°ååçš
床ã®ãµãŒãã¹ã¿çŽ åã®äœè£œãå¯èœãšãªãã 第ïŒïœå³ã«ç€ºãæ æ§ã®ãã®ãåŸãã«ã¯äŸãã°äž
èšãšåæ§ã«ãããåããåŸãç åçã«ãã絶çžäœ
ææïŒïŒãé€å»ããã°ããã ãŸãã第ïŒïœå³ã«ç€ºãæ æ§ã®ãã®ãåŸãã«ã¯ã
ãµãŒãã¹ã¿ææïŒïŒïŒãšå°é»äœææïŒïŒïŒïŒïŒïŒ
ïŒãšã®éã®é«èç¹éå±ææã®ã·ãŒãã被èãä»åš
ããã以å€ã¯ç¬¬ïŒïœå³ã«ç€ºãæ æ§ãšåæ§ã®è£œæ³ã
ãšãã°ããã 第ïŒïœå³ã«ç€ºãããã«ç©å±€æ§é äœãåŸãã«ã¯ã
åææãææã®æ®µæ°ã«éãã以å€ã¯ç¬¬ïŒïœå³ã«ç€º
ãæ æ§ãšåæ§ã®è£œæ³ããšãã°ããã å å§å ç±ã¯ãå ·äœçã«ã¯ãããããã¬ã¹
ïŒHPïŒæ³ãç±ééæ°Žå§ïŒHIPïŒæ³ã«ããã°ããã HPæ³ã§ã¯ã倧æ°äžçã®é žçŽ é°å²æ°äžãããã
ã¯ç空ãArïŒN2çã®äžæŽ»æ§é°å²æ°äžã§ã50ã
300KgïŒcm2ã®å å§äžãåææã®çŒçµæž©åºŠæªæºãç¹
ã«750ã1700âã®æž©åºŠã§ã0.2ãïŒæéçšåºŠå ç±ã
ãã ãã®ãããªæ¡ä»¶ãšããã®ã¯ã50KgïŒcm2æªæºã§ã¯
æ¥åãäžååãšãªãã300KgïŒcm2ãããããšãçš
ããæŒãåã®æ¶èãæ¿ããããã®æ質 éžå®ã«åº
é£ããçããçç£æ§ãæªåããããã§ããããŸã
750âæªæºãšãªããšãæ¥åãäžååãšãªã1700â
ãããããšããµãŒãã¹ã¿ææã®ç¹æ§ïŒæµæå€çïŒ
ã®ãã©ãããæ¥æ¿ã«å¢å€§ããããã§ããã ãŸããHIPæ³ã§ã¯ãArçã®äžæŽ»æ§é°å²æ°äžã§
50ã1500KgïŒcm2ã®å å§äžãåææã®çŒçµæž©åºŠæª
æºãç¹ã«700ã1400âã®æž©åºŠã§0.2ãïŒæéå ç±ã
ãã ãã®ãããªæ¡ä»¶ãšããã®ã¯ã50KgïŒcm2æªæºã§ã¯
æ¥åãäžååãšãªãã1500KgïŒcm2ãããããšææ
éã®çžäºæ¡æ£ã®ã³ã³ãããŒã«ãå°é£ãšãªããäœæ¥
æ§ãæªããªãããã§ããã700âæªæºã§ã¯æ¥åã
äžååãšãªã1400âãããããšããµãŒãã¹ã¿ææ
ã®ç¹æ§ã®ãã©ãããæ¥æ¿ã«å¢å€§ããããã§ããã æ¬çºæã«ãããŠã¯ããã®ãããªïŒè»žæ¹åïŒHIP
æ³ïŒãããã¯ïŒè»žæ¹åïŒHIPæ³ïŒã«å å§äžãå ç±
ããããšã«ãããµãŒãã¹ã¿ææãšïŒå¯Ÿã®å°é»äœæ
æããçžäºæ¡æ£ã«ãã€ãŠåŒ·åºã«æ¥åãããããšã
ã§ããã ãã®ãããªæ¡æ£ãªããåå¿å±€ã¯æ°ãæ°10ÎŒïœçš
床ã®åããšããããšã奜ãŸããã ãã®ãããªæ¥åã«éããŠã¯ããµãŒãã¹ã¿ææãš
å°é»äœææãšã®ç±èšåŒµä¿æ°ãäºãã«è¿äŒŒããŠãã
ããšãå¿ èŠã§ãããå å§ãå ç±ãé°å²æ°çãåèš
ã®ããã«å¶åŸ¡ããããšã«ããããµãŒãã¹ã¿ææãš
å°é»äœææã®çžäºæ¡æ£ãå³ããã®ã§ããã æ¬çºæã«ãããŠã¯ã第ïŒïœãïŒïœå³ã«ç€ºããã
ã«ãµãŒãã¹ã¿çŽ åïŒïŒã«ä¿è·èïŒã圢æããããš
ã奜ãŸããããã®å Žåãä¿è·èãšããŠãŸã«ãŒã²ã«
ã³ãŒãçã®èèã圢æãããããšã奜ãŸããã å ·äœçã«ã¯ãéå±ã¢ã«ã³ãã·ãïŒã·ãªã³ã³ã¢ã«
ã³ãã·ããã¢ã«ãããŠã ã¢ã«ã³ãã·ãããã¿ã³ã¢
ã«ã³ãã·ãããžã«ã³ããŠã ã¢ã«ã³ãã·ãçïŒãšæº¶
åªïŒã€ãœãããã«ã¢ã«ã³ãŒã«çïŒãšãã¢ã«æ¯ã§
ïŒïŒïŒã®å²åã§å ããããã«å¿ èŠã«å¿ããŠå®å®å
å€ãå ããŠæº¶æ¶²ã調補ãããã®æº¶æ¶²ã«ãå€éšé»æ¥µ
éšåïŒå°é»äœã®ãµãŒãã¹ã¿ãšå察åŽæ¹åã®äžéš
åïŒããã¹ã¯ãããµãŒãã¹ã¿çŽ åããã€ããã³ã°
ãã宀枩ã§çžå¯Ÿæ¹¿åºŠ60ïŒ ä»¥äžã®æ¡ä»¶äžä¹Ÿç¥ããã
ãã®åŸçŒæããããšã«ãã圢æããããçŒæã¯ã
åžžå§ã§500âçšåºŠã§10åéçšåºŠè¡ãã°ããã ãŸããèåã®å¶åŸ¡ã¯ããã€ããã³ã°ããã³çŒæ
ã®æäœã®åæ°ãå¢æžãããããšã«ããè¡ãã°ã
ãã ãã®ããã«èèã圢æãããããšã«ãããèç±
æ§ã«åªãããµãŒãã¹ã¿çŽ åãšããããšãã§ããã ãã®ä»ãåçš®ä¿è·èã圢æããããšãã§ããã ãªããä¿è·èã圢æããªãé åã¯ïŒã10mmçšåºŠ
ã§ååã§ããã ãŸããªãŒãç·ãåºå®ããã«ã¯ãäžèšä¿è·èã圢
æãããŠããªãé åã«ãŠãããä»ãçã§è¡ãã°ã
ãã æ¬çºæã®ãµãŒãã¹ã¿ææãäžèšã®ãããªããã
ãäžäœåã®ãµãŒãã¹ã¿çŽ åã«é©çšããã«éããŠ
ã¯ãäžè¿°ãããããªæ æ§ã«å¿ ãããéå®ãããã
å¿ èŠã«å¿ããåŸæ¥ãã䜿çšãããŠãããµãŒãã¹ã¿
ãããã«ãªãŒãç·ãåèšããïŒç¹éæ60â37101
å·çïŒããåæ§æææã®çææãçŒçµã«ããäžäœ
åããããšïŒç¹éæ54â19599å·ãå53â33155
å·ãå60â37101å·ãå60â49607å·çïŒãå¯èœã§
ããã çºæã®å ·äœçäœçšå¹æ æ¬çºæã®ãµãŒãã¹ã¿ææã¯ãé«æž©ãç¹ã«400ã
800âã®æž©åºŠã§äœ¿çšããŠãå®å®æ§ãæããããŸã
å€ãããªãäœãããããšãã§ããããããµãŒã
ã¹ã¿ã®æž©åºŠä¿æ°ãå°ãããé©çšå¯èœãªæž©åºŠç¯å²ã
åºãããããšãã§ããã ããã«ãçµææ¯ãšæµæçãšã®é¢ä¿ã調ã¹ããšã
æµæçã®å€åãæ¥å³»ã§ã¯ãªããçµææ¯ãå€åãã
ãããšã«ããæµæã®ã³ã³ãããŒã«ãå¯èœãšãªãã
ãã®ããç®æšãšããæµæåã®çµæåãåºãããé
ç£æ§ããã³å質ãåäžããã ãã®ãããªãµãŒãã¹ã¿ææãé©çšããã¬ã©ã¹å°
æ¢åã®ãµãŒãã¹ã¿çŽ åã«é©çšãããšãã«ã¯ãçºæ³¡
ãå°ãªããšããå©ç¹ãæããããŸããä»ã®ææãš
å å§äžå ç±ããŠæ¥åããŠäžäœåãããããããäž
äœåã®ãµãŒãã¹ã¿çŽ åã圢æããã°ã寞æ³ç²ŸåºŠã
è¯å¥œã§ãçææãçŒçµã«ããäžäœåãããšãã®ã
ããªå¯žæ³å€åãç¹æ§ã®ãã©ãããããããŠå°ãªã
ãªãã çºæã®å ·äœçå®æœäŸ 以äžãæ¬çºæã®å ·äœçå®æœäŸã瀺ããæ¬çºæã
詳现ã«èª¬æããã å®æœæœ ïŒ æ¬çºæã®è©Šæã®äœè£œããã³æž¬å® å¹³åç²åŸ1.2ÎŒïœã®Al2O3ïŒçŽåºŠ99.9wtïŒ ä»¥äžïŒã
å¹³åç²åŸ1.0ÎŒïœã®SiCïŒçŽåºŠ99.5wtïŒ ä»¥äžïŒãã
ã³ïŒãŸãã¯å¹³åç²åŸ1.2ÎŒïœã®B4CïŒçŽåºŠ98wtïŒ ä»¥
äžïŒããè¡šïŒã«ç€ºããããªå²åã§ç§€éããã¢ã»ã
ã³ãçšããŠããŒã«ãã«ã«ãŠ20æé湿åŒæ··åããã æ··åããã¹ã©ãªãŒã也ç¥é ç²ããå åŸ77mmã®é»
éåã«å å¡«ããããããAré°å²æ°ãŸãã¯ç空
ïŒ10-2TorrïŒäžã§çŒçµæž©åºŠ1300ã1700âããã¬ã¹
å§å200ã300KgïŒcm2ã§ããããã¬ã€çŒçµãè¡ã€
ãã åŸãããçŒçµäœã¯ïŒžç·åæã®çµæAl2O3ãšB4C
ããã³ïŒãŸãã¯SiCãšãã圢æãããŠããããšã
確èªãããããŸãäžéšã®ãµã³ãã«ã§ã¯ã°ã¬ã€ã³ç²
çã«ïŒ¢ããã³ïŒãŸãã¯Siã®é žåç©ã®ååšã確èªã
ããã å·åŽåŸãããããã®çŒçµäœãåããåãåºãã
ïŒ200ãã€ã€ã¢ã³ãç ¥ç³ã«ãŠå å·¥ãã0.75Ã0.75
Ã0.5mmã«ãããåããã ãããã®ãããåãããã®ã«ã€ããŠãæå®ã®æ¹
æ³ã§é»æ¥µä»ããè¡ã€ãŠã50âãš480âã«ãããæµ
æçÏïŒÎ©ã»cmïŒããã³ãµãŒãã¹ã¿å®æ°ïŒ¢ã枬å®
ããã 次ã«ç¬¬ïŒïœå³ã«ç€ºããããªãµãŒãã¹ã¿çŽ åãäœ
補ããã ãµãŒãã¹ã¿ææãšããŠäžèšãšåæ§ã«ããŠäœè£œã
ãè€åçŒçµäœïŒå·Ÿ65mmãé·ã1.6mmãåã0.5mmïŒã
å°é»äœææãšããŠTiCâAl2O3è€åçŒçµäœïŒå·Ÿ65
mmãé·ã130mmãåã0.3mmïŒããã³çµ¶çžäœææãš
ããŠAl2O3çŒçµäœïŒå·Ÿ65mmãé·ã64.2mmãåã0.5
mmïŒãçšããéããŠããããã¬ã¹æ³ã«ããå å§äž
å ç±ããæ¥åããïŒç¬¬ïŒïœ å³ïŒã ãã®å Žåãå ç±ã¯Aré°å²æ°äžã1300âã®æž©åºŠ
ã§ã150KgïŒcm2ã®å å§äžã30åè¡ã€ãã ãã®ããã«ããŠäœè£œããè€åçŒçµäœïŒå·Ÿ65mmã
é·ã130mmãåã1.1mmïŒãåããåãåºã宀枩ã«
æ»ããããã®åŸãäžäžé¢ãã©ããã³ã°ã«ããçŽ
20ÎŒïœå å·¥ããå€åšã¹ã©ã€ã·ã³ã°ãã·ã³ã«ããã
ã€ã€ã¢ã³ããã¬ãŒãã«ãŠãµãŒãã¹ã¿çŽ åãå·Ÿ0.75
mmãé·ã65mmãåã1.1mmïŒãµãŒãã¹ã¿ãããéš
åã®å€§ããïŒ0.75Ã0.75Ã0.5mmïŒå°é»äœã®åã
0.3mmãã«åæå å·¥ããïŒç¬¬ïŒïœå³ïŒãïŒæã®è€å
çŒçµäœãã100åã®ãµãŒãã¹ã¿çŽ åãåŸãããšã
ã§ããã ãšãŒãžã³ã°åŠçããåŸã®ãã®ããµãŒãã¹ã¿çŽ å
ãšããŠçšãã500ââ3000æéã§ã®æµæå€å
ãÎRïŒRoÃ100ïŒïŒ ïŒïŒRoåæå€ãÎRå€åéããæž¬å® ããã ãããã®çµæãè¡šïŒã«ç€ºãããªãè¡šäžã§ã¯ãã
ãããçŽ åã䟿å®äžåäžè©ŠæNoã«ãŠæ²èŒããŠã
ãã ãªããè¡šïŒã«ã¯SiCïŒAl2O3ã®äœç©æ¯ãšãçŒçµ
äœã®å¯åºŠã®çè«å¯åºŠã«å¯Ÿããå¯åºŠæ¯ïŒïŒ ïŒã瀺ã
ããã äœç©æ¯ã¯ãçŒçµäœã®è¡šé¢ãé¡é¢ç 磚ããŠããã®
é»åé¡åŸ®é¡åçããSiCïŒB4Cã®é¢ç©æ¯ãç®åºã
ããã®ã§ããã ãŸããè©ŠæïŒïŒïŒããã³è©ŠæïŒïŒïŒã«ã€ããŠæž©
床ïŒïŒŽïŒãšæµæçïŒÏïŒãšã®é¢ä¿ã第ïŒå³ããã³
第ïŒå³ã«ç€ºãã ãŸããè©ŠæïŒïŒïŒã«ã€ããŠã®éå±é¡åŸ®é¡åçã
第ïŒå³ïŒåç400åïŒããã³ç¬¬ïŒå³ïŒåç1000åïŒ
ã«ç€ºãã æ¯èŒã®è©Šæã®äœè£œããã³æž¬å® çµæãæ¬çºæå€ãšããæ¬çºæã®ãã®ãšåæ§ã«è©Š
æãäœè£œããåæ§ã«æž¬å®ããããã®çµæãè¡šïŒã«
瀺ãã ãŸããè©ŠæïŒïŒïŒã®çµæã®çææããµãŒãã¹ã¿
ææãæ¬çºæã®ãµãŒãã¹ã¿çŽ åã§çšããå°é»äœæ
æããã³çµ¶çžäœææãšåãçµæã®çææãçšããŠ
ç¹éæ60â37101å·å ¬å ±å®æœäŸã«èšèŒã®æ¹æ³ã«æº
ããŠäžäœåããåŸãããããã¬ã¹ïŒHPïŒçŒçµã
ãã ãã®çµæãçææãäžäœåããåŸHPçŒçµããŠ
ãµãŒãã¹ã¿çŽ åãšããå Žåã¯ãäžäœååŸã®çŒçµå
ãšçŒçµåŸã§ã¯å¯žæ³ãªãã圢ç¶ã«å€åãçããæµæ
å€ã®ãã©ãããçŽ å100åã«ã€ãïŒïŒ 以äžãšå€§ã
ãã€ãã ããã«å¯Ÿãæ¬çºæã®çŽ åã§ã¯ããã©ããã¯ïŒïŒ
æªæºã§ãã€ãã
ãè¡šã
次ã«ãäžèšã®åçš®çŒçµäœã«ã€ããã¬ã©ã¹å°æ¢ã
ããéã®ã¬ã©ã¹å°æ¢æ§ãè©äŸ¡ããã ããªãã¡ãè©ŠæNo.101ã111ãNo.125ããã³äžèš
è©ŠæNo.127ã®çŒçµäœã«ã€ãããŠã±ã€é žã¬ã©ã¹ãçš
ãã850âã«ãŠãã¬ã©ã¹å°æ¢è©Šéšãè¡ã€ããçµæ
ãè¡šïŒã®ïŒã«ç€ºãã
ããéã®ã¬ã©ã¹å°æ¢æ§ãè©äŸ¡ããã ããªãã¡ãè©ŠæNo.101ã111ãNo.125ããã³äžèš
è©ŠæNo.127ã®çŒçµäœã«ã€ãããŠã±ã€é žã¬ã©ã¹ãçš
ãã850âã«ãŠãã¬ã©ã¹å°æ¢è©Šéšãè¡ã€ããçµæ
ãè¡šïŒã®ïŒã«ç€ºãã
ãè¡šã
ãè¡šã
äœç©æ¯ å¯åºŠæ¯
è©ŠæNo. AlïŒOïŒ BïŒC SiC çŒæ
æ¡ä»¶ SiCïŒAlïŒOïŒ (ïŒ ) ã¬ã©ã¹å°æ¢æ§
äœç©æ¯ å¯åºŠæ¯
è©ŠæNo. AlïŒOïŒ BïŒC SiC çŒæ
æ¡ä»¶ SiCïŒAlïŒOïŒ (ïŒ ) ã¬ã©ã¹å°æ¢æ§
Claims (1)
- ãç¹èš±è«æ±ã®ç¯å²ã ïŒ å°é»è·¯åœ¢æç©è³ªãšããŠçåã±ã€çŽ ããã³ïŒãŸ
ãã¯çåããŠçŽ ãšãã¢ã«ãããŠã ãã·ãªã³ã³ãã
ã°ãã·ãŠã ãã«ã«ã·ãŠã ãã¹ããã³ããŠã ããã³
ããªãŠã ã®é žåç©ã®ïŒçš®ä»¥äžãããªã矀ããéžæ
ãããçµæ¶è³ªã®ãããªãã¯ã¹ç©è³ªãšãå«æããå
èšçåã±ã€çŽ ã®å«æéãåèšãããªãã¯ã¹ç©è³ªã®
å«æéã«å¯Ÿãäœç©æ¯ã§1.24以äžã§ããçŒçµäœãã
æ§æãããããšãç¹åŸŽãšãããµãŒãã¹ã¿ææã ïŒ çŒçµäœã®å¯åºŠãçè«å¯åºŠã®75ïŒ ä»¥äžã§ããè«
æ±é ïŒã«èšèŒã®ãµãŒãã¹ã¿ææã ïŒ ãããªãã¯ã¹ç©è³ªãšããŠãããã«4Aæå çŽ
ã®é žåç©ãå«æããçåã±ã€çŽ ãšçåããŠçŽ ã®å«
æéã«å¯Ÿãã4Aæå çŽ ã®é žåç©ã®å«æéãäœç©
æ¯ã§0.5以äžã§ããè«æ±é ïŒãŸãã¯ïŒã«èšèŒã®ãµ
ãŒãã¹ã¿ææã ïŒ ããã«2Aæå çŽ ãåäœãŸãã¯çåç©ã®åœ¢ã§
å«ãè«æ±é ïŒãªããïŒã®ããããã«èšèŒã®ãµãŒã
ã¹ã¿ææã ïŒ 2Aæå çŽ ã®åäœãŸãã¯çåç©ã2Aæå çŽ æ
ç®ã§0.01ã10wtïŒ å«ãŸããè«æ±é ïŒã«èšèŒã®ãµãŒ
ãã¹ã¿ææã ïŒ ããã«3Aæå çŽ ãå«ãè«æ±é ïŒãªããïŒã®
ããããã«èšèŒã®ãµãŒãã¹ã¿ææã ïŒ 3Aæå çŽ ãåäœãé žåç©ãŸãã¯çåç©ã®åœ¢
ã§å«ãŸããè«æ±é ïŒã«èšèŒã®ãµãŒãã¹ã¿ææã ïŒ 3Aæå çŽ ã®åäœãé žåç©ãŸãã¯çåç©ã3A
æå çŽ æç®ã§0.01ã10wtïŒ å«ãŸããè«æ±é ïŒãŸã
ã¯ïŒã«èšèŒã®ãµãŒãã¹ã¿ææã ïŒ ããã«4Aæå çŽ ã®åäœãŸãã¯çåç©ãã4A
æå çŽ æç®ã§0.01ã10wtïŒ å«ãè«æ±é ïŒãªããïŒ
ã®ããããã«èšèŒã®ãµãŒãã¹ã¿ææã ïŒïŒ ããã«éã®åäœãé žåç©ãŸãã¯çåç©ãå«
ãè«æ±é ïŒãªããïŒã®ããããã«èšèŒã®ãµãŒãã¹
ã¿ææã ïŒïŒ éã®åäœãé žåç©ãŸãã¯çåç©ãéå çŽ æ
ç®ã§0.01ã10wtïŒ å«ãè«æ±é ïŒïŒã«èšèŒã®ãµãŒã
ã¹ã¿ææã ïŒïŒ 1AïŒ1Bããã³2Bæå çŽ ãå«æãããªã
ããå çŽ æç®ã§1wtïŒ ä»¥äžã®å«æéã§ããè«æ±é
ïŒãªããïŒïŒã®ããããã«èšèŒã®ãµãŒãã¹ã¿æ
æã ïŒïŒ è«æ±é ïŒãªããïŒïŒã®ããããã«èšèŒã®ãµ
ãŒãã¹ã¿ææãã圢æããããµãŒãã¹ã¿ãããã
æãããµãŒãã¹ã¿çŽ åã ïŒïŒ ãµãŒãã¹ã¿ææãã¬ã©ã¹å°æ¢ããè«æ±é ïŒ
ïŒã®ãµãŒãã¹ã¿çŽ åã
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63064106A JPS6464202A (en) | 1987-03-17 | 1988-03-17 | Thermistor material and thermistor element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6199687 | 1987-03-17 | ||
JP63064106A JPS6464202A (en) | 1987-03-17 | 1988-03-17 | Thermistor material and thermistor element |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6464202A JPS6464202A (en) | 1989-03-10 |
JPH0315326B2 true JPH0315326B2 (ja) | 1991-02-28 |
Family
ID=26403072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63064106A Granted JPS6464202A (en) | 1987-03-17 | 1988-03-17 | Thermistor material and thermistor element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6464202A (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2784927B2 (ja) * | 1988-09-29 | 1998-08-13 | ãã£ãŒãã£ãŒã±ã€æ ªåŒäŒç€Ÿ | éç·åœ¢æµæäœ |
JP3240130B2 (ja) * | 1990-03-23 | 2001-12-17 | ãã£ãŒãã£ãŒã±ã€æ ªåŒäŒç€Ÿ | ãµãŒãã¹ã¿ææããã³ãµãŒãã¹ã¿çŽ å |
JP4492234B2 (ja) * | 2004-07-21 | 2010-06-30 | ïœïœæ ªåŒäŒç€Ÿ | ãµãŒãã¹ã¿çµæç©åã³ãµãŒãã¹ã¿çŽ å |
JP5765277B2 (ja) | 2012-03-19 | 2015-08-19 | æ ªåŒäŒç€Ÿè±ç°äžå€®ç 究æ | äœæž©çšãµãŒãã¹ã¿ææåã³ãã®è£œé æ¹æ³ |
CN106441624B (zh) * | 2016-08-31 | 2019-02-19 | äžèªçµæµä»ªåšè¡ä»œæéå ¬åž | äžç§å¿«éååºé è£ çµé»åŒæž©åºŠäŒ æåšåå ¶å°è£ æ¹æ³ |
-
1988
- 1988-03-17 JP JP63064106A patent/JPS6464202A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6464202A (en) | 1989-03-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4952902A (en) | Thermistor materials and elements | |
US5753893A (en) | Alumina-based sintered material for ceramic heater | |
US4804823A (en) | Ceramic heater | |
US9892950B2 (en) | Ceramic member, member for semiconductor manufacturing apparatus, and method for manufacturing ceramic member | |
JPH07326655A (ja) | éé»ãã£ã㯠| |
JPH0315326B2 (ja) | ||
JP7389307B1 (ja) | 枩床ã»ã³ãµçŽ åããã³æž©åºŠã»ã³ãµ | |
EP3696827B1 (en) | Thermistor sintered body and temperature sensor element | |
JP3150180B2 (ja) | ãµãŒãã¹ã¿çŽ åã®è£œé æ¹æ³ | |
JP6675050B1 (ja) | ãµãŒãã¹ã¿çŒçµäœããã³æž©åºŠã»ã³ãµçŽ å | |
JP2897837B2 (ja) | ãµãŒãã¹ã¿çŽ åã®è£œé æ¹æ³ | |
JP2632347B2 (ja) | ã»ã©ããã¯ããŒã¿ | |
JPH01146304A (ja) | é«æž©çšæž©åºŠã»ã³ãµ | |
JP2003529759A (ja) | ã»ã³ãµçŽ åãç¹ã«æž©åºŠã»ã³ãµ | |
JP2563809B2 (ja) | åå°äœçšçªåã¢ã«ãããŠã åºæ¿ | |
JP3100720B2 (ja) | ãµãŒãã¹ã¿çŽ åããã³ãã®è£œé æ¹æ³ | |
JPH11135900A (ja) | çªåã¢ã«ãããŠã 質é ç·åºæ¿åã³ãã®è£œé æ¹æ³ | |
JP2762280B2 (ja) | çŒçµäœ | |
CN112088411A (zh) | çæçµé»ç§ç»äœåæž©åºŠäŒ æåšå 件 | |
WO2024004870A1 (ja) | 枩床ã»ã³ãµçŽ åããã³æž©åºŠã»ã³ãµ | |
US5830570A (en) | Aluminum nitride substrate and process for preparation thereof | |
JP2537606B2 (ja) | ã»ã©ããã¯ãâã¿ | |
JP2645733B2 (ja) | æµæäœ | |
JP7473753B1 (ja) | 枩床ã»ã³ãµçŽ åããã³æž©åºŠã»ã³ãµ | |
JPH05182802A (ja) | æµæçŽ å |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |