High-strength ceramic composite, process for its preparation and

Details High-strength ceramic composite, process for its preparation and High-strength ceramic composite, process for its preparation and

1989-11-30

1992-08-18

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264 63, 264 65, C04B 4184

Patent

active

051397170

ABSTRACT:
The invention relates to a high-strength ceramic composite, in particular made from silicon nitride, a process for its preparation and its use. The process comprises impregnating an open-pore matrix with a molten polysilazane in a first step and, in a second step, heating the impregnated matrix to 800.degree. to 2500.degree. C. under a blanketing gas, such as nitrogen or a noble gas, or to 800.degree. to 1500.degree. C. under a gas containing ammonia. The high-strength ceramic composite prepared can be used as a component to be subjected to high thermal, mechanical or corrosive stress.

REFERENCES:
patent: 3853567 (1974-12-01), Verbeek
patent: 4110386 (1978-08-01), Yajima et al.
patent: 4267211 (1981-05-01), Yajima et al.
patent: 4720532 (1988-01-01), Seyferth et al.
patent: 4935481 (1990-06-01), Vaahs et al.
patent: 4946920 (1990-08-01), Vaahs et al.
Washburne, S. S. et al, J. Organometal. Chem. 21:59-64 (1970).

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