| 发明名称 |
Alumina-based ceramics for core materials |
| 摘要 |
{PG,1 Cores made of alumina-based ceramics, such as {62 -alumina materials, are substantially non-reactive with directionally solidified eutectic and superalloy materials, do not cause hot cracking of the same, and are easily leachable from the cast metal.
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| 申请公布号 |
US4156614(A) |
申请公布日期 |
1979.05.29 |
| 申请号 |
US19770839990 |
申请日期 |
1977.10.06 |
| 申请人 |
GENERAL ELECTRIC |
发明人 |
DEVRIES, ROBERT C;GRESKOVICH, CHARLES D |
| 分类号 |
C04B35/10;B22C1/00;B22C1/08;C04B35/101;C04B35/113;C04B38/00;(IPC1-7):B28B7/34 |
主分类号 |
C04B35/10 |
| 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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