CH519932A - Process for producing Mg-Al spinel crystals with a stoichiometric composition - Google Patents
Process for producing Mg-Al spinel crystals with a stoichiometric compositionInfo
- Publication number
- CH519932A CH519932A CH685169A CH685169A CH519932A CH 519932 A CH519932 A CH 519932A CH 685169 A CH685169 A CH 685169A CH 685169 A CH685169 A CH 685169A CH 519932 A CH519932 A CH 519932A
- Authority
- CH
- Switzerland
- Prior art keywords
- producing
- stoichiometric composition
- spinel crystals
- spinel
- crystals
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
- C30B11/04—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method adding crystallising materials or reactants forming it in situ to the melt
- C30B11/08—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method adding crystallising materials or reactants forming it in situ to the melt every component of the crystal composition being added during the crystallisation
- C30B11/10—Solid or liquid components, e.g. Verneuil method
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P95/00—Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681767394 DE1767394A1 (en) | 1968-05-06 | 1968-05-06 | Process for the production of Mg-Al spinel crystals with stoechiometric composition for integrated circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH519932A true CH519932A (en) | 1972-03-15 |
Family
ID=5699335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH685169A CH519932A (en) | 1968-05-06 | 1969-05-05 | Process for producing Mg-Al spinel crystals with a stoichiometric composition |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3619131A (en) |
| AT (1) | AT287652B (en) |
| CH (1) | CH519932A (en) |
| DE (1) | DE1767394A1 (en) |
| FR (1) | FR1598617A (en) |
| GB (1) | GB1220311A (en) |
| NL (1) | NL6906593A (en) |
| SE (1) | SE345395B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3883313A (en) * | 1972-12-14 | 1975-05-13 | Rca Corp | Modified czochralski-grown magnesium aluminate spinel and method of making same |
| US3960503A (en) * | 1974-12-27 | 1976-06-01 | Corning Glass Works | Particulate material feeder for high temperature vacuum system |
| US4186046A (en) * | 1976-09-29 | 1980-01-29 | The United States Of America As Represented By The Secretary Of The Army | Growing doped single crystal ceramic materials |
| US5002742A (en) * | 1983-05-16 | 1991-03-26 | W. R. Grace & Co.-Conn. | Inorganic oxide sorbents for sulfur oxides |
| US4792377A (en) * | 1987-02-09 | 1988-12-20 | The Regents Of The University Of California | Flux growth of sodium beta" alumina |
| JP2639121B2 (en) * | 1989-08-25 | 1997-08-06 | 三菱マテリアル株式会社 | Method for producing fine α-alumina powder |
| US7648933B2 (en) | 2006-01-13 | 2010-01-19 | Dynamic Abrasives Llc | Composition comprising spinel crystals, glass, and calcium iron silicate |
| AT512037B1 (en) * | 2012-05-31 | 2013-05-15 | Innotech Holding Gmbh | Method for growing crystals by flame melting |
| CN103014855A (en) * | 2012-12-25 | 2013-04-03 | 福建鑫磊晶体有限公司 | Preparation method and equipment for preparing alpha-Al2O3 single crystal through gamma-Al2O3 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3226193A (en) * | 1962-06-21 | 1965-12-28 | Union Carbide Corp | Method for growing crystals |
| US3457033A (en) * | 1965-12-17 | 1969-07-22 | Gen Electric | Process for producing magnesiaalumina spinel whiskers |
| US3472615A (en) * | 1967-08-24 | 1969-10-14 | Rca Corp | Growing monocrystalline stoichiometric magnesium aluminate |
-
1968
- 1968-05-06 DE DE19681767394 patent/DE1767394A1/en active Pending
- 1968-12-23 FR FR1598617D patent/FR1598617A/fr not_active Expired
-
1969
- 1969-04-29 NL NL6906593A patent/NL6906593A/xx unknown
- 1969-05-02 GB GB22463/69A patent/GB1220311A/en not_active Expired
- 1969-05-05 CH CH685169A patent/CH519932A/en not_active IP Right Cessation
- 1969-05-05 AT AT430669A patent/AT287652B/en not_active IP Right Cessation
- 1969-05-06 SE SE6421/69A patent/SE345395B/xx unknown
- 1969-05-06 US US824734A patent/US3619131A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE1767394A1 (en) | 1971-08-26 |
| GB1220311A (en) | 1971-01-27 |
| FR1598617A (en) | 1970-07-06 |
| US3619131A (en) | 1971-11-09 |
| SE345395B (en) | 1972-05-29 |
| NL6906593A (en) | 1969-11-10 |
| AT287652B (en) | 1971-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |