Compositions: ceramic – Ceramic compositions – Refractory
Patent
1996-08-01
1998-03-17
Bell, Mark L.
Compositions: ceramic
Ceramic compositions
Refractory
501 96, 264 65, C04B 35581
Patent
active
057286353
ABSTRACT:
An aluminum nitride sintered body is characterized by having a g-value of an unpaired electron in a spectrum of an electron spin resonance being not less than 2.0010. The aluminum nitride sintered body is produced by sintering a raw material composed of powdery aluminum nitride at a temperature of not less than 1730.degree. C. to not more than 1920.degree. under a pressure of not less than 80 kg/cm.sup.2.
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Bessho Yuki
Kobayashi Hiromichi
Mori Yukimasa
Bell Mark L.
NGK Insulators Ltd.
Troilo Louis M.
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