JPS57191299A - Preparation of single crystal of corundum shedding asterism - Google Patents
Preparation of single crystal of corundum shedding asterismInfo
- Publication number
- JPS57191299A JPS57191299A JP7599381A JP7599381A JPS57191299A JP S57191299 A JPS57191299 A JP S57191299A JP 7599381 A JP7599381 A JP 7599381A JP 7599381 A JP7599381 A JP 7599381A JP S57191299 A JPS57191299 A JP S57191299A
- Authority
- JP
- Japan
- Prior art keywords
- single crystal
- raw material
- material bar
- under
- asterism
- 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.)
- Granted
Links
- 239000013078 crystal Substances 0.000 title abstract 13
- 229910052593 corundum Inorganic materials 0.000 title abstract 5
- 239000010431 corundum Substances 0.000 title abstract 3
- 239000002994 raw material Substances 0.000 abstract 6
- 230000001590 oxidative effect Effects 0.000 abstract 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 229910009973 Ti2O3 Inorganic materials 0.000 abstract 1
- 229910010252 TiO3 Inorganic materials 0.000 abstract 1
- 238000000137 annealing Methods 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- GQUJEMVIKWQAEH-UHFFFAOYSA-N titanium(III) oxide Chemical compound O=[Ti]O[Ti]=O GQUJEMVIKWQAEH-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
PURPOSE: To prepare a single crystal of corundum shedding asterism, by growing a blend of Al2O3 and TiO3 as a raw material bar under an nonoxidizing atmosphere to give a single crystal, annealing it further under an oxidizing atmosphere.
CONSTITUTION: A seed crystal is set under a raw material bar having a composition of Al2O3 and Ti2O3 in a molar ratio of 1:(0.0005W0.1) or a solvent having a meling point lower than that of the raw material bar is put in the middle of the raw material bar and the seed crystal, one end of the raw material bar is melted under heating directly or through the solvent, and a single crystal is grown by floating zone method to transfer the melt zone. The single crystal is then annealed under oxidizing atmosphere, so the TiO2 component is exsolved and precipitated, to give a single crystal of corundum shedding asterism. The growth of the single crystal is carried out under a reducing atmosphere with an oxygen partial pressure of ≤10-1atm, the prepared single crystal is used as a raw material bar, the growth of single crystal is repeated again, and the prepared single crystal is annealed under an oxidizing atmosphere, to give a single crystal of corumdum having improved quality.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7599381A JPS5938192B2 (en) | 1981-05-20 | 1981-05-20 | Manufacturing method of corundum single crystal that emits starry colors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7599381A JPS5938192B2 (en) | 1981-05-20 | 1981-05-20 | Manufacturing method of corundum single crystal that emits starry colors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57191299A true JPS57191299A (en) | 1982-11-25 |
| JPS5938192B2 JPS5938192B2 (en) | 1984-09-14 |
Family
ID=13592306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7599381A Expired JPS5938192B2 (en) | 1981-05-20 | 1981-05-20 | Manufacturing method of corundum single crystal that emits starry colors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5938192B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60226499A (en) * | 1984-04-24 | 1985-11-11 | Seiko Epson Corp | Synthesis of ruby single crystal |
| JPS60226498A (en) * | 1984-04-19 | 1985-11-11 | Seiko Epson Corp | Raw material manufacturing method for single crystal growth |
| WO2024095040A1 (en) * | 2022-11-02 | 2024-05-10 | Levchenko Vladimir Viktorovich | Method for improving colour characteristics and/or transparency of at least one natural corundum and in particular a ruby |
-
1981
- 1981-05-20 JP JP7599381A patent/JPS5938192B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60226498A (en) * | 1984-04-19 | 1985-11-11 | Seiko Epson Corp | Raw material manufacturing method for single crystal growth |
| JPS60226499A (en) * | 1984-04-24 | 1985-11-11 | Seiko Epson Corp | Synthesis of ruby single crystal |
| JPH0310599B2 (en) * | 1984-04-24 | 1991-02-14 | Seiko Epson Corp | |
| WO2024095040A1 (en) * | 2022-11-02 | 2024-05-10 | Levchenko Vladimir Viktorovich | Method for improving colour characteristics and/or transparency of at least one natural corundum and in particular a ruby |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5938192B2 (en) | 1984-09-14 |
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