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Patent Searching and Data


Title:
SILICON NITRIDE POWDER AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH07206409
Kind Code:
A
Abstract:

PURPOSE: To obtain silicon nitride powder capable of producing a silicon nitride sintered compact excellent in high-temp. strength and high-temp. creep characteristics and suitable for use as a high-temp. member of a gas turbine, etc.

CONSTITUTION: Metallic silicon powder is nitrided to obtain the objective silicon nitride powder having ≥10m2/g specific surface area or ≤0.8μm average particle diameter, ≤1.5wt.% in total of oxygen content, ≤500ppm (F+Cl) content and ≤300ppm F content.


Inventors:
HIROTSURU HIDEKI
ISOZAKI HIROSHI
Application Number:
JP1994000001713
Publication Date:
August 08, 1995
Filing Date:
January 12, 1994
Export Citation:
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Assignee:
DENKI KAGAKU KOGYO KK
International Classes:
C01B21/068; C04B35/626; (IPC1-7): C01B21/068; C04B35/626