US Patent No: 5,174,953
Number of patents in Portfolio can not be more than 2000
Method of making composite sintered artifact
Stats
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Dec 29, 1992
Issued date -
Oct 9, 1991
filing date -
07/773,160
serial no -
Expired
status
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Abstract
A method is disclosed of making a sintered composite unitary artifact having an alpha-alumina component fast with a metal component. Particulate alpha-alumina and a glass-forming additive are mixed together; and a green artifact is pressed having an alumina portion formed from the mixture and a metal portion formed from a particulate metal. The green artifact is then heated under a non-oxidizing atmosphere to a temperature at which both portions undergo densification. This provides a sintered artifact having a debased alpha-alumina component sintered to a metal artifact.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,386,960 Electrode material for molten carbonate fuel cells | 12 | 1981 | |
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| 4,610,726 Dense cermets containing fine grained ceramics and their manufacture | 29 | 1984 | |
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| 4,602,956 Cermet composites, process for producing them and arc tube incorporating them | 25 | 1984 | |
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| 4,299,627 Method of manufacturing oxygen sensing element | 6 | 1979 | |