JPS6251219B2 - - Google Patents
Info
- Publication number
- JPS6251219B2 JPS6251219B2 JP54073461A JP7346179A JPS6251219B2 JP S6251219 B2 JPS6251219 B2 JP S6251219B2 JP 54073461 A JP54073461 A JP 54073461A JP 7346179 A JP7346179 A JP 7346179A JP S6251219 B2 JPS6251219 B2 JP S6251219B2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- feo
- crystals
- magnetite
- tio
- 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
Links
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 108
- 238000010438 heat treatment Methods 0.000 claims description 49
- 239000000203 mixture Substances 0.000 claims description 41
- 239000013078 crystal Substances 0.000 claims description 40
- 239000002241 glass-ceramic Substances 0.000 claims description 37
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 26
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 25
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 20
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 19
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 15
- 230000005291 magnetic effect Effects 0.000 claims description 15
- 229910052796 boron Inorganic materials 0.000 claims description 12
- 239000006104 solid solution Substances 0.000 claims description 10
- 229910000500 β-quartz Inorganic materials 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 44
- 239000000047 product Substances 0.000 description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 25
- 230000006698 induction Effects 0.000 description 18
- 238000002425 crystallisation Methods 0.000 description 15
- 230000008025 crystallization Effects 0.000 description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 12
- 239000011019 hematite Substances 0.000 description 9
- 229910052595 hematite Inorganic materials 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 8
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 230000005293 ferrimagnetic effect Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000001747 exhibiting effect Effects 0.000 description 6
- 238000011065 in-situ storage Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 239000010408 film Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000155 melt Substances 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 238000002441 X-ray diffraction Methods 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000002667 nucleating agent Substances 0.000 description 4
- 230000006911 nucleation Effects 0.000 description 4
- 238000010899 nucleation Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 229910052723 transition metal Inorganic materials 0.000 description 4
- 150000003624 transition metals Chemical class 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000010411 cooking Methods 0.000 description 3
- 230000005294 ferromagnetic effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- JXGGISJJMPYXGJ-UHFFFAOYSA-N lithium;oxido(oxo)iron Chemical group [Li+].[O-][Fe]=O JXGGISJJMPYXGJ-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000006064 precursor glass Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000011029 spinel Substances 0.000 description 3
- 229910052596 spinel Inorganic materials 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- GOLCXWYRSKYTSP-UHFFFAOYSA-N Arsenious Acid Chemical compound O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- -1 cast iron Chemical class 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 150000003623 transition metal compounds Chemical class 0.000 description 2
- 229910000314 transition metal oxide Inorganic materials 0.000 description 2
- 229910000809 Alumel Inorganic materials 0.000 description 1
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910019114 CoAl2O4 Inorganic materials 0.000 description 1
- 229910002518 CoFe2O4 Inorganic materials 0.000 description 1
- 229910019882 CrAl2O4 Inorganic materials 0.000 description 1
- 229910002477 CuCr2O4 Inorganic materials 0.000 description 1
- 229910003430 FeCr2O4 Inorganic materials 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910017163 MnFe2O4 Inorganic materials 0.000 description 1
- 229910003303 NiAl2O4 Inorganic materials 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007507 annealing of glass Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000008395 clarifying agent Substances 0.000 description 1
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(II,III) oxide Inorganic materials [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052637 diopside Inorganic materials 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
- 229910000174 eucryptite Inorganic materials 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 230000005308 ferrimagnetism Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000001089 mineralizing effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- FULFYAFFAGNFJM-UHFFFAOYSA-N oxocopper;oxo(oxochromiooxy)chromium Chemical compound [Cu]=O.O=[Cr]O[Cr]=O FULFYAFFAGNFJM-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 230000008542 thermal sensitivity Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052861 titanite Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910021489 α-quartz Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
- H01F1/37—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles in a bonding agent
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0081—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition having a magnetic crystal phase
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/914,342 US4140645A (en) | 1978-06-12 | 1978-06-12 | Glasses and glass-ceramics suitable for induction heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS553395A JPS553395A (en) | 1980-01-11 |
| JPS6251219B2 true JPS6251219B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-10-29 |
Family
ID=25434220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7346179A Granted JPS553395A (en) | 1978-06-12 | 1979-06-11 | Glass and glass ceramic products and their manufacturing method |
Country Status (5)
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4395271A (en) * | 1979-04-13 | 1983-07-26 | Corning Glass Works | Method for making porous magnetic glass and crystal-containing structures |
| US4323056A (en) * | 1980-05-19 | 1982-04-06 | Corning Glass Works | Radio frequency induced hyperthermia for tumor therapy |
| US4360441A (en) * | 1981-06-25 | 1982-11-23 | Corning Glass Works | Glass-encapsulated magnetic materials and methods for making them |
| JPS59151340A (ja) * | 1983-02-16 | 1984-08-29 | Fuji Photo Film Co Ltd | 磁気記録用フエライト磁性粉の製造法 |
| US4493874A (en) * | 1983-03-08 | 1985-01-15 | Tokyo Shibaura Denki Kabushiki Kaisha | Production of a magnetic powder having a high dispersibility |
| JPH02102441U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1989-01-30 | 1990-08-15 | ||
| JPH0696460B2 (ja) * | 1989-06-19 | 1994-11-30 | 日本板硝子株式会社 | 低膨張透明結晶化ガラス |
| US5153070A (en) * | 1990-08-01 | 1992-10-06 | Corning Incorporated | Coated refractory article and method |
| GB2324299A (en) * | 1997-04-16 | 1998-10-21 | Peter Hay | Producing glass ceramic from ferrosilicate powder |
| JP4268344B2 (ja) * | 2001-04-12 | 2009-05-27 | Ｊｆｅスチール株式会社 | 加工性に優れる絶縁被膜付き電磁鋼板 |
| CN101279859B (zh) * | 2003-03-26 | 2012-01-04 | 圣戈本陶瓷及塑料股份有限公司 | 具有氧化层的碳化硅陶瓷部件 |
| US7452606B2 (en) * | 2003-05-01 | 2008-11-18 | Saint-Gobain Ceramics & Plastics, Inc. | Silicon carbide ceramic components having oxide layer |
| US7727917B2 (en) * | 2003-10-24 | 2010-06-01 | Schott Ag | Lithia-alumina-silica containing glass compositions and glasses suitable for chemical tempering and articles made using the chemically tempered glass |
| FR2909374B1 (fr) * | 2006-11-30 | 2016-11-25 | Soc En Nom Collectif Dite : Eurokera | Vitroceramiques de beta-quartz, transparentes et incolores, a faible teneur en tio2; articles en lesdites vitroceramiques ; verres precurseurs, procedes d'elaboration |
| DE102008025277A1 (de) * | 2008-05-27 | 2009-12-03 | Merck Patent Gmbh | Glaszusammensetzung |
| DE202008017803U1 (de) | 2008-10-07 | 2010-08-12 | Schott Ag | Transparente, eingefärbte Kochfläche mit verbesserter farbiger Anzeigefähigkeit |
| EP2581349A4 (en) * | 2010-06-08 | 2017-09-06 | Ocean's King Lighting Science&Technology Co., Ltd. | Transparent glass ceramic emitting white light and preparation method thereof |
| CN104936913B (zh) | 2012-08-28 | 2018-01-16 | 康宁股份有限公司 | 有色和不透明玻璃‑陶瓷，相关的可着色和可陶瓷化玻璃，和相关方法 |
| US9878940B2 (en) | 2014-02-21 | 2018-01-30 | Corning Incorporated | Low crystallinity glass-ceramics |
| US9757880B2 (en) * | 2015-01-13 | 2017-09-12 | Empire Technology Development Llc | Spatial heat treatment of additively manufactured objects |
| US10751367B2 (en) | 2016-05-27 | 2020-08-25 | Corning Incorporated | Bioactive glass microspheres |
| US10647962B2 (en) | 2016-05-27 | 2020-05-12 | Corning Incorporated | Bioactive aluminoborate glasses |
| US20170342383A1 (en) | 2016-05-27 | 2017-11-30 | Corning Incorporated | Lithium disilicate glass-ceramic compositions and methods thereof |
| US10059621B2 (en) * | 2016-05-27 | 2018-08-28 | Corning Incorporated | Magnetizable glass ceramic composition and methods thereof |
| US10676713B2 (en) | 2016-05-27 | 2020-06-09 | Corning Incorporated | Bioactive borophosphate glasses |
| WO2019108556A1 (en) | 2017-11-28 | 2019-06-06 | Corning Incorporated | Bioactive glass compositions and dentin hypersensitivity remediation |
| EP3717428A1 (en) | 2017-11-28 | 2020-10-07 | Corning Incorporated | Bioactive borate glass and methods thereof |
| WO2019108558A1 (en) | 2017-11-28 | 2019-06-06 | Corning Incorporated | High liquidus viscosity bioactive glass |
| US10857259B2 (en) | 2017-11-28 | 2020-12-08 | Corning Incorporated | Chemically strengthened bioactive glass-ceramics |
| DE202018102533U1 (de) | 2017-12-22 | 2018-06-12 | Schott Ag | Einrichtungs- und Ausstattungsgegenstände für Küchen oder Labore mit Anzeigeeinrichtung |
| DE102018110910A1 (de) | 2017-12-22 | 2018-06-21 | Schott Ag | Einrichtungs- und Ausstattungsgegenstände für Küchen oder Labore mit Leuchtelement |
| EP3943460A4 (en) * | 2019-03-22 | 2023-02-08 | Nippon Electric Glass Co., Ltd. | CRYSTALLIZED GLASS BASED ON LI2O-AL2O3-SIO2 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3193503A (en) * | 1962-12-31 | 1965-07-06 | Owens Illinois Glass Co | Magnetic ceramic ferrites and method for making same |
| US3557575A (en) * | 1969-02-04 | 1971-01-26 | Corning Glass Works | Process for forming a basaltic glass-ceramic product |
| US3694360A (en) * | 1971-08-12 | 1972-09-26 | Owens Illinois Inc | Ferrimagnetic glass-ceramics |
| US3741740A (en) * | 1971-12-06 | 1973-06-26 | Owens Illinois Inc | Glass-ceramic having a reflective surface and process for making same |
| US4042519A (en) * | 1973-02-16 | 1977-08-16 | Owens-Illinois, Inc. | Ferrimagnetic glass-ceramics |
| US3926602A (en) * | 1974-06-19 | 1975-12-16 | Corning Glass Works | Glass-ceramic articles with reflective surfaces |
| FR2319592A1 (fr) * | 1975-07-28 | 1977-02-25 | Saint Gobain | Vitroceramiques a haute teneur en oxyde de fer |
| US4083727A (en) * | 1977-01-07 | 1978-04-11 | Corning Glass Works | Glass-ceramics with magnetic surface films |
| US4083709A (en) * | 1977-01-07 | 1978-04-11 | Corning Glass Works | Method for making glass-ceramics with ferrimagnetic surfaces |
| US4233169A (en) * | 1979-04-13 | 1980-11-11 | Corning Glass Works | Porous magnetic glass structure |
-
1978
- 1978-06-12 US US05/914,342 patent/US4140645A/en not_active Expired - Lifetime
-
1979
- 1979-05-15 DE DE19792919442 patent/DE2919442A1/de not_active Withdrawn
- 1979-06-08 FR FR7914736A patent/FR2434125B1/fr not_active Expired
- 1979-06-11 JP JP7346179A patent/JPS553395A/ja active Granted
- 1979-06-11 GB GB7920276A patent/GB2024198B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS553395A (en) | 1980-01-11 |
| DE2919442A1 (de) | 1979-12-20 |
| GB2024198A (en) | 1980-01-09 |
| FR2434125B1 (fr) | 1985-07-19 |
| FR2434125A1 (fr) | 1980-03-21 |
| GB2024198B (en) | 1982-10-06 |
| US4140645A (en) | 1979-02-20 |
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