C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/1
C04B 35/58 (2006.01) C04B 35/584 (2006.01) C04B 35/593 (2006.01)
Patent
CA 1314293
ABSTRACT OF THE DISCLOSURE A silicon nitride sintered product comprises, in % by weight, 1 to 10% Mg, calculated as MgO, 1 to 10% Zr, calculated as ZrO2, 0.1 to 2.0% of at least one of A?, calculated as A?2O3, Li, calculated as Li2O, and Na, calculated as Na O, and the remainder being Si3N4 and unavoidable impurities.
576306
Nakanishi Kenji
Tajima Yo
Urashima Kazuhiro
Watanabe Masakazu
Ngk Spark Plug Co. Ltd.
Riches Mckenzie & Herbert Llp
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