JPS6418985A - Production of oxide single crystal - Google Patents
Production of oxide single crystalInfo
- Publication number
- JPS6418985A JPS6418985A JP17517387A JP17517387A JPS6418985A JP S6418985 A JPS6418985 A JP S6418985A JP 17517387 A JP17517387 A JP 17517387A JP 17517387 A JP17517387 A JP 17517387A JP S6418985 A JPS6418985 A JP S6418985A
- Authority
- JP
- Japan
- Prior art keywords
- continuous
- single crystal
- polycrystal
- crystal
- converted
- 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.)
- Pending
Links
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
PURPOSE:To produce an oxide continuous single crystal of a modified cross section, by forming a crystal nucleus in a part of a continuous polycrystal to be converted into a single crystal and allowing it to move relatively through a heating zone having a proper temperature gradient and distribution. CONSTITUTION:Al2O3 is combined with an appropriate amount of B2O3 to form a continuous polycrystal sintered product of prescribed dimensions, and the end part of the continuous body is heated with a laser beam over Tc, the temperature at which abnormal grains start to grow, to form a nucleus of crystal growth. The continuous polycrystal is heated in a range from its Tc to the melting point to convert the polycrystal part 4 into the single crystal part 5, as the part 4 is kept at a temperature lower than Tc. The part 5 is allowed to moved from the one to the other, just as in the floating zone, thereby the whole parts of the continuous polycrystal is converted into a continuous single crystal at an increased speed with improved productivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17517387A JPS6418985A (en) | 1987-07-14 | 1987-07-14 | Production of oxide single crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17517387A JPS6418985A (en) | 1987-07-14 | 1987-07-14 | Production of oxide single crystal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6418985A true JPS6418985A (en) | 1989-01-23 |
Family
ID=15991545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17517387A Pending JPS6418985A (en) | 1987-07-14 | 1987-07-14 | Production of oxide single crystal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6418985A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5591023A (en) * | 1995-10-10 | 1997-01-07 | Hitachi Metals, Ltd. | Rotary type compressor |
| EP1004690A1 (en) * | 1998-11-27 | 2000-05-31 | General Electric Company | Single crystal conversion control |
| US7127980B2 (en) | 2003-05-21 | 2006-10-31 | Aisin Seiki Kabushiki Kaisha | Vane, valve timing control device, and sliding member |
-
1987
- 1987-07-14 JP JP17517387A patent/JPS6418985A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5591023A (en) * | 1995-10-10 | 1997-01-07 | Hitachi Metals, Ltd. | Rotary type compressor |
| EP1004690A1 (en) * | 1998-11-27 | 2000-05-31 | General Electric Company | Single crystal conversion control |
| JP2000256089A (en) * | 1998-11-27 | 2000-09-19 | General Electric Co <Ge> | Method of transformation to single crystal |
| KR100789005B1 (en) * | 1998-11-27 | 2007-12-26 | 제너럴 일렉트릭 캄파니 | Single crystal conversion control |
| US7127980B2 (en) | 2003-05-21 | 2006-10-31 | Aisin Seiki Kabushiki Kaisha | Vane, valve timing control device, and sliding member |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY101957A (en) | Shaped articles made from pre-processed starch | |
| JPS55145150A (en) | Alloy having extremely fine uniform dispersed crystal phase | |
| EP0174004A3 (en) | Process for making a crystalline article from a melt | |
| JPS6418985A (en) | Production of oxide single crystal | |
| ES2163015T3 (en) | BORICO OXIDE PRODUCTION. | |
| JPS56129621A (en) | Molding method for quartz glass | |
| JPS5567596A (en) | Single crystal growing method | |
| GB1151086A (en) | Method and Apparatus for Glass Manufacture. | |
| JPS57202907A (en) | Production of shape steel | |
| JPS5637293A (en) | Single crystal manufacturing refractory crucible | |
| JPS6411938A (en) | Molybdenum giant grain or single crystal and its production | |
| EP0186249A3 (en) | Process for the preparation of polycrystalline materials and equipment suitable to the accomplishing thereof | |
| JPS6452344A (en) | Processing method for oxide or ceramic superconductor into wire | |
| JPS6418993A (en) | Production of bi12sio20 single crystal | |
| AU1070488A (en) | Manufacture of sheet form material from refractory powder | |
| JPS55128801A (en) | Manufacture of large single crystal of ferrite with uniform composition | |
| JPS6472991A (en) | Production of single crystal of compound semiconductor | |
| JPS643031A (en) | Production of infrared ray fiber | |
| JPS5688895A (en) | Growth of single crystal | |
| HAGGERTY | Production of fibers by a floating zone fiber drawing technique(Production of fibers by CO 2 laser heated, floating zone fiber growth process)[Final Report] | |
| JPS575004A (en) | Manufacture of single ionic crystalline optical fiber | |
| JPS6121997A (en) | Preparation of single crystal of alexandrite | |
| JPS5562888A (en) | Production of mullite solid solution single crystal | |
| GB1146230A (en) | Apparatus for causing a rod of crystalline material to grow | |
| JPS52144382A (en) | Production of single crystal by float-zone melting process |