发明名称 |
MAKING HOT PRESSED SILICON NITRIDE BY USE OF LOW DENSITY REACTION BONDED BODY |
摘要 |
<p>A method is disclosed of fully densifying a plurality of preformed ceramic plates by axial compression of the billets along a wall defining a cylinder and cavity. A series of the plates are stacked along the wall with the smallest dimension of the billets aligned with the axis of the cavity. The billets have a ratio of the smallest dimension to the largest dimension in the range of 1:3 to 1:40. The largest dimension of each of the plates is less than the lateral dimension of the cavity to leave an annular space; the space is filled with a pseudo isostatic pressing medium. The assembly is hot pressed under sufficient pressure and heat to convert the plates to billets of substantially full density.</p> |
申请公布号 |
CA1247336(A) |
申请公布日期 |
1988.12.27 |
申请号 |
CA19840456020 |
申请日期 |
1984.06.06 |
申请人 |
FORD MOTOR COMPANY OF CANADA, LIMITED |
发明人 |
EZIS, ANDRE |
分类号 |
B28B3/00;B28B7/00;B28B11/00;B30B11/00;C04B35/593;(IPC1-7):B28B3/00 |
主分类号 |
B28B3/00 |
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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