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High-pressure phase silicon nitride having a cubic spinel structure and the manufacturing method
High-pressure phase silicon nitride having a cubic spinel structure and the manufacturing method
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机译:具有立方尖晶石结构的高压相氮化硅及其制造方法
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摘要
A method for preparing a high-pressure phase cubic spinel-type silicon nitride includes housing a molding containing low-pressure phase silicon nitride powder and a metal powder in a cylindrical container, arranging an explosive in the cylindrical container so as to surround the molding, and exploding the explosive to compress the molding. An X-ray diffraction pattern of the high-pressure phase cubic spinel-type silicon nitride produced according to the method of the present invention shows a maximum peak having a full width at half maximum of 0.65 degrees or less. TG-DTA analysis of the cubic spinel-type silicon nitride shows a weight change starting temperature of 700 to 1100° C.
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