发明名称 |
Process and an apparatus for producing a composite oxide single crystal body |
摘要 |
A process is disclosed for producing an integrated composite oxide single crystal body composed of a core portion made of an oxide single crystal and a clad portion integrated with the core portion and made of another oxide single crystal having a composition different from that of the oxide single crystal constituting the core portion, the process comprising the steps of: (1) preparing a first melt in a first crucible by melting a first material for a first oxide single crystal to constitute the core portion inside the first crucible, (2) preparing a second melt inside a second crucible by melting a second material for a second oxide single crystal to constitute the clad portion inside the second crucible, (3) contacting a seed crystal to the first and second melts, (4) pulling down the first melt through a pull-out opening of the first crucible, (5) pulling down the second melt through a pull-out opening of the second crucible and contacting the pulled-down second melt with a pulled-down portion of the first melt, and (6) integrally pulling down the first and second melts.
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申请公布号 |
US6074477(A) |
申请公布日期 |
2000.06.13 |
申请号 |
US19980041479 |
申请日期 |
1998.03.12 |
申请人 |
NGK INSULATORS, LTD. |
发明人 |
IMAEDA, MINORU;FUKUDA, TSUGUO;SHIMAMURA, KIYOSHI;KAWAGUCHI, TATSUO |
分类号 |
G02B6/00;C30B15/00;C30B15/08;C30B29/28;C30B29/30;G02B6/02;G02F1/35;G02F1/355;H01S3/06;H01S3/16;(IPC1-7):C30B15/34 |
主分类号 |
G02B6/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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