Compositions: ceramic – Ceramic compositions – Carbide or oxycarbide containing
Patent
1992-06-05
1993-08-24
Bell, Mark L.
Compositions: ceramic
Ceramic compositions
Carbide or oxycarbide containing
264 65, C04B 3552
Patent
active
052388824
ABSTRACT:
Silicon nitride sintered bodies are disclosed which contain silicon carbide therein and in which intergranular phases between silicon nitride particles are substantially crystallized. Further, a manufacturing method of the sintered bodies is disclosed, in which a silicon carbide powdery raw material is used as an additive when preparing raw powders and the intergranular phases are crystallized during a temperature descending stage following a firing. Silicone carbide effectivley promotes densification of the structure of the sintered body and crystallization of the intergranular phases, thereby making it possible to provide the sintered bodies having intergranular phases with little glass phases uncrystallized and excellent high-temperature strengths.
REFERENCES:
patent: 3833389 (1974-09-01), Komeya et al.
patent: 3969125 (1976-07-01), Komeya et al.
patent: 4097293 (1978-06-01), Komeya et al.
patent: 4184882 (1980-01-01), Lange
patent: 4280850 (1981-07-01), Smith et al.
patent: 4407971 (1983-10-01), Komatsu et al.
patent: 4746636 (1988-05-01), Yokoyama
patent: 4764490 (1988-08-01), Yamakawa et al.
patent: 4795724 (1989-01-01), Soma et al.
Isomura Manabu
Matsuhiro Keiji
Takahashi Tomonori
Bell Mark L.
Jones Deborah
NGK Insulators Ltd.
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