C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/38
C04B 35/80 (2006.01) C04B 35/64 (2006.01) C04B 35/645 (2006.01)
Patent
CA 2025426
A sintered ceramic composite body is manufac- tured by preparing a powdery mixture composed of a base material composed of either one of oxide ceramic such as alumina, mullite, magnesia, or the like, and nonoxide ceramic such as silicon nitride, sialon, or the like, and a reinforcement material composed of particles or platelet par- ticles of silicon carbide which have a size ranging from 5 to 20 µm, the particles of silicon carbide being contained at a volume ratio ranging from 3 to 50 %. The platelet par- ticles have a maximum diameter ranging from 5 to 50 µm and a thickness which is 1/3 or less of the maximum diameter. The powdery mixture is molded into a shaped product, which is then sintered in a temperature range from 1,400 to 1,900°C for the base material which is composed of oxide ceramic or in a temperature range from 1,500 to 2,000°C for the base material which is composed of nonoxide ceramic.
Furuse Yutaka
Matsuhiro Keiji
Macrae & Co.
Ngk Insulators Ltd.
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