Method of making composite sintered artifact
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United States of America Patent
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-
Dec 29, 1992
Grant Date -
N/A
app pub date -
Oct 9, 1991
filing date -
Oct 15, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
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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