发明名称 |
Composite crucible and method of manufacturing the same |
摘要 |
The purpose of the present invention is to provide a crucible which has high viscosity at high temperature, can be used for a long time, and can be manufactured at low cost, and a method of manufacturing the crucible. The present invention provides a composite crucible including a vitreous silica crucible body having a sidewall portion and a bottom portion, and a reinforcement layer provided on an outer surface side of an upper end portion of the vitreous silica crucible body, wherein the reinforcement layer is made of mullite material whose main component is alumina and silica. |
申请公布号 |
EP2471979(B1) |
申请公布日期 |
2014.07.23 |
申请号 |
EP20110195427 |
申请日期 |
2011.12.22 |
申请人 |
JAPAN SUPER QUARTZ CORPORATION |
发明人 |
SUDO, TOSHIAKI;KITAHARA, KEN;YOSHIOKA, TAKUMA |
分类号 |
C30B15/10;C03B19/09 |
主分类号 |
C30B15/10 |
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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