Aluminum nitride sintered product
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United States of America Patent
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May 7, 2002
Grant Date -
N/A
app pub date -
Mar 16, 2000
filing date -
Mar 17, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An aluminum nitride sintered product which is made mainly of aluminum nitride and contains an yttrium compound in an amount of from 0.6 to 5 wt % as calculated as yttrium oxide, a vanadium compound in an amount of from 0.02 to 0.4 wt % as calculated as vanadium and carbon in an amount of from 0.03 to 0.10 wt % and which has a three-point bending strength of at least 45 kg/mm and a thermal conductivity of at least 150 W/m.multidot.K, wherein crystal grains of aluminum nitride have an average grain size of at most 5 .mu.m.
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