JPS5562884A - Chrysoberyl single crystal showing cat's-eye effect and production thereof - Google Patents
Chrysoberyl single crystal showing cat's-eye effect and production thereofInfo
- Publication number
- JPS5562884A JPS5562884A JP13432778A JP13432778A JPS5562884A JP S5562884 A JPS5562884 A JP S5562884A JP 13432778 A JP13432778 A JP 13432778A JP 13432778 A JP13432778 A JP 13432778A JP S5562884 A JPS5562884 A JP S5562884A
- Authority
- JP
- Japan
- Prior art keywords
- single crystal
- crystal
- interface
- lamp
- mirror
- 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
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
PURPOSE: To produce a high quality large size chrysoberyl single crystal free from a flaw, a strain, etc. by concentrating infrared rays from a halogen lamp or the like on a rodlike high density sintered body contg. Al2O3, BeO and titanium oxide with a spheroidal mirror to form a melting zone and by growing a single crystal on the zone interface.
CONSTITUTION: Halogen lamp or Xe are lamp 2 is set at one focus of spheroidal mirror 1, and rodlike sintered body raw material 3 contg. Al2O3, BeO and titanium oxide at the other focus. Material 3 and seed crystal 5 are held with upper and lower rotary shafts 4, 6, respectively, they are sealed in transparent quartz tube 7, and the atmosphere is controlled freely. Infrared rays from lamp 2 are concentrated with mirror 1 to form molten body 8, and by moving crystal 5 upward it is contacted to body 8. After an equilibrium state is attained, by moving shafts 4, 6 the raw material is melted at the interface between body 8 and rod 3, and crystallization takes place at the interface between body 8 and crystal 5.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13432778A JPS5562884A (en) | 1978-10-31 | 1978-10-31 | Chrysoberyl single crystal showing cat's-eye effect and production thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13432778A JPS5562884A (en) | 1978-10-31 | 1978-10-31 | Chrysoberyl single crystal showing cat's-eye effect and production thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5562884A true JPS5562884A (en) | 1980-05-12 |
JPS6149280B2 JPS6149280B2 (en) | 1986-10-28 |
Family
ID=15125724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13432778A Granted JPS5562884A (en) | 1978-10-31 | 1978-10-31 | Chrysoberyl single crystal showing cat's-eye effect and production thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5562884A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58115092A (en) * | 1981-12-25 | 1983-07-08 | Seiko Epson Corp | Beryl crystal prepared by f-z process |
WO1985000392A1 (en) * | 1983-07-14 | 1985-01-31 | Sumitomo Cement Co., Ltd. | Chrysoberyl single crystal showing iridescent effect and process for its preparation |
US4621065A (en) * | 1983-09-24 | 1986-11-04 | Kyocera Corporation | Chrysoberyl cat's-eye synthetic single crystal |
-
1978
- 1978-10-31 JP JP13432778A patent/JPS5562884A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58115092A (en) * | 1981-12-25 | 1983-07-08 | Seiko Epson Corp | Beryl crystal prepared by f-z process |
JPH0253399B2 (en) * | 1981-12-25 | 1990-11-16 | Seiko Epson Corp | |
WO1985000392A1 (en) * | 1983-07-14 | 1985-01-31 | Sumitomo Cement Co., Ltd. | Chrysoberyl single crystal showing iridescent effect and process for its preparation |
GB2159433A (en) * | 1983-07-14 | 1985-12-04 | Sumitomo Cement Co | Chrysoberyl single crystal showing iridescent effect and process for its preparation |
US4634492A (en) * | 1983-07-14 | 1987-01-06 | Sumitomo Cement Co., Ltd. | Chrysoberyl single crystal and method of producing the same |
US4621065A (en) * | 1983-09-24 | 1986-11-04 | Kyocera Corporation | Chrysoberyl cat's-eye synthetic single crystal |
Also Published As
Publication number | Publication date |
---|---|
JPS6149280B2 (en) | 1986-10-28 |
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