发明名称 |
Method for making porous, crushable core having a porous integral outer barrier layer having a density gradient therein |
摘要 |
A method for simultaneously forming an integral porous outer barrier layer having a density gradient therein on selected external surfaces of a fired ceramic article and for increasing the porosity content and crushability characteristics thereof embodies the firing of a ceramic compact comprising a reactant fugitive filler material and a ceramic material in a controlled atmosphere.
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申请公布号 |
US4221748(A) |
申请公布日期 |
1980.09.09 |
申请号 |
US19790006278 |
申请日期 |
1979.01.25 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
PASCO, WAYNE D.;KLUG, FREDERIC J. |
分类号 |
B22C9/04;B22C9/10;B22D27/04;C30B21/02;(IPC1-7):B22D29/00;B29H7/20 |
主分类号 |
B22C9/04 |
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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