发明名称 |
Evaluation process of reactivity of silica glass with silicon melt and vibration at its surface |
摘要 |
<p>A evaluation process of a vibration level at the surface of silicon melt held in a silica glass crucible is provided by setting in the vacuum furnace, the test piece of the silica glass cut out from a silica glass crucible, melting a little amount of silicon put on said piece of the glass, and measuring a vibration cycle of the silicon melt. Moreover, a silica glass crucible not causing the vibration at the surface of the silicon melt held in the silica glass crucible is also provided, wherein the vibration cycle of a silica glass of a side wall of the crucible is controlled at more than 1/6 seconds.</p> |
申请公布号 |
EP1413652(B1) |
申请公布日期 |
2009.09.30 |
申请号 |
EP20030023296 |
申请日期 |
2003.10.15 |
申请人 |
JAPAN SUPER QUARTZ CORPORATION |
发明人 |
KISHI, HIROSHI;KANDA, MINORU;FUKUI, MASANORI |
分类号 |
C03B20/00;C30B15/10;C30B15/20;C30B15/22;C30B29/06;C30B35/00;G01N33/38 |
主分类号 |
C03B20/00 |
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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