High performant heat treating silicon nitride ceramic and preparation process thereof
Title：
High performant heat treating silicon nitride ceramic and preparation process thereof
Application Number：
 200610011115
Application Date：
 2006/01/06
Announcement Date：
 2006/06/28
Pub. Date：
Publication Number：
 1793043
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C04B 35/584, C04B 35/622, C04B 35/645
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Li Jianbao, Guo Gangfeng, Yang Xiaozhan, Lin Hong, Liang Long, He Mingsheng
Key Words：
 High performant, heat treating, silicon nitride ceramic, preparation process
Abstract：
 The invention relates to a high capacity heat treatment silicon nitride ceramic and the manufacture method that belongs to ceramic material technology field. It adopts silicon nitride powder and single rare earth oxide additive as raw material, after mixing equally, sintering to densification and taking after-sintering treatment. The silicon nitride ceramic has high room temperature intension, as well as in high temperature, without adding beta-Si3N4 crystal seed. It could be widely used in metallurgy, chemistry, mechanic, spaceflight and military affairs fields.
Claim：
Priority：
PCT：
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