Pressureless sintering of whisker reinforced alumina composites
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United States of America Patent
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Aug 12, 1997
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N/A
app pub date -
Sep 13, 1994
filing date -
Sep 13, 1994
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Abstract
A composite and pressureless sintering process for making whisker-reinforced alumina composites using a nitride modifier. The whiskers are milled to an aspect ratio of less than 10. Green preform bodies are surrounded by a carbonaceous material during the sintering process to prevent direct exposure of the body surface to the atmosphere within the sintering furnace during the sintering step.
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