Whisker reinforced ceramic cutting tool and composition thereof
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United States of America Patent
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Mar 20, 2001
Grant Date -
N/A
app pub date -
Sep 18, 1999
filing date -
Sep 18, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A ceramic composition produced by the consolidation of a blend of starting components. The composition comprises a matrix with one or more of the carbides, nitrides and carbonitrides of hafnium, molybdenum, zirconium, tantalum, niobium, vanadium and tungsten, titanium nitride, and titanium carbonitride in an amount that is greater than 50 volume percent of the matrix. The matrix comprises between 60 and 99.8 volume percent of the composition. Ceramic whiskers are uniformly dispersed throughout the matrix wherein the ceramic whiskers comprises between 0.2 and 40 volume percent of the composition.
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