JPH0432004B2 - - Google Patents
Info
- Publication number
- JPH0432004B2 JPH0432004B2 JP61030923A JP3092386A JPH0432004B2 JP H0432004 B2 JPH0432004 B2 JP H0432004B2 JP 61030923 A JP61030923 A JP 61030923A JP 3092386 A JP3092386 A JP 3092386A JP H0432004 B2 JPH0432004 B2 JP H0432004B2
- Authority
- JP
- Japan
- Prior art keywords
- alumina
- particles
- particle size
- aluminum hydroxide
- corundum particles
- 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
- 239000002245 particle Substances 0.000 claims description 87
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 86
- 229910052593 corundum Inorganic materials 0.000 claims description 26
- 239000010431 corundum Substances 0.000 claims description 26
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 230000005260 alpha ray Effects 0.000 claims description 9
- 150000001639 boron compounds Chemical class 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 150000002366 halogen compounds Chemical class 0.000 claims description 5
- 238000004131 Bayer process Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229910016569 AlF 3 Inorganic materials 0.000 claims description 2
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Inorganic materials [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 2
- 238000000034 method Methods 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 11
- 238000005520 cutting process Methods 0.000 description 11
- 238000009826 distribution Methods 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 10
- 239000000945 filler Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 239000011362 coarse particle Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000013078 crystal Substances 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 3
- 239000003082 abrasive agent Substances 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 230000001089 mineralizing effect Effects 0.000 description 3
- 239000011164 primary particle Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- -1 MgF 2 Chemical class 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910002026 crystalline silica Inorganic materials 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- 239000005350 fused silica glass Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 229910000953 kanthal Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 208000032368 Device malfunction Diseases 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 229910001679 gibbsite Inorganic materials 0.000 description 1
- 239000007952 growth promoter Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 1
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
- C01F7/441—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
- C01F7/442—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination in presence of a calcination additive
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Products (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61030923A JPS62191420A (ja) | 1986-02-17 | 1986-02-17 | 球状コランダム粒子の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61030923A JPS62191420A (ja) | 1986-02-17 | 1986-02-17 | 球状コランダム粒子の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62191420A JPS62191420A (ja) | 1987-08-21 |
| JPH0432004B2 true JPH0432004B2 (US20100268047A1-20101021-C00003.png) | 1992-05-28 |
Family
ID=12317207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61030923A Granted JPS62191420A (ja) | 1986-02-17 | 1986-02-17 | 球状コランダム粒子の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62191420A (US20100268047A1-20101021-C00003.png) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6320340A (ja) * | 1986-07-14 | 1988-01-28 | Showa Denko Kk | 高熱伝導性ゴム・プラスチック組成物 |
| JPH01217071A (ja) * | 1988-02-26 | 1989-08-30 | Sumitomo Cement Co Ltd | 熱伝導性高分子成形体 |
| JPH0645508B2 (ja) * | 1989-09-29 | 1994-06-15 | ハリマセラミック株式会社 | 圧入施工用耐火物 |
| JP2002348115A (ja) * | 2001-05-30 | 2002-12-04 | Showa Denko Kk | アルミナ粒子及びその製造方法 |
| JP4920141B2 (ja) * | 2001-05-30 | 2012-04-18 | 昭和電工株式会社 | アルミナ粒子及びその製造方法 |
| JP2005022963A (ja) * | 2003-06-12 | 2005-01-27 | Showa Denko Kk | アルミナ粒の製造方法及び組成物 |
| KR100752587B1 (ko) * | 2004-03-15 | 2007-08-29 | 쇼와 덴코 가부시키가이샤 | 환형 용융 알루미나 입자, 그 제조방법 및 그 입자를함유하는 수지 조성물 |
| US11459276B2 (en) | 2015-09-16 | 2022-10-04 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Alumina-based heat conductive oxide and method for producing same |
| HRP20221022T1 (hr) | 2016-05-16 | 2022-11-11 | Martinswerk Gmbh | Proizvodi glinice i njihova uporaba u polimernim pripravcima visoke toplinske vodljivosti |
| JP6209695B1 (ja) * | 2017-03-02 | 2017-10-04 | 大日精化工業株式会社 | アルミナ系熱伝導性酸化物及びその製造方法 |
| US20230107924A1 (en) * | 2020-03-16 | 2023-04-06 | Mitsubishi Materials Corporation | Inorganic filler powder, thermally conductive polymer composition, and method for manufacturing inorganic filler powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS594630A (ja) * | 1982-06-30 | 1984-01-11 | Matsushita Electric Works Ltd | 樹脂組成物 |
| JPS5997527A (ja) * | 1982-11-22 | 1984-06-05 | Sumitomo Alum Smelt Co Ltd | 高純度アルミナ粒子の製造方法 |
-
1986
- 1986-02-17 JP JP61030923A patent/JPS62191420A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS594630A (ja) * | 1982-06-30 | 1984-01-11 | Matsushita Electric Works Ltd | 樹脂組成物 |
| JPS5997527A (ja) * | 1982-11-22 | 1984-06-05 | Sumitomo Alum Smelt Co Ltd | 高純度アルミナ粒子の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62191420A (ja) | 1987-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |