Compositions: ceramic – Ceramic compositions – Carbide or oxycarbide containing
Patent
1993-01-15
1996-08-06
Marquis, Melvyn I.
Compositions: ceramic
Ceramic compositions
Carbide or oxycarbide containing
501 88, 501 89, 501 93, 522148, 522172, C04B 3552
Patent
active
055433693
ABSTRACT:
A block copolymer is prepared by reacting an aluminum-nitrogen polymer and a silazane polymer at a temperature not greater than 400.degree. C. Block copolymers containing alkenyl or alkynyl groups can be crosslinked by supplying energy to generate free radicals. An AlN/SiC-containing ceramic is formed by pyrolyzing the crosslinked block copolymer in a nonoxidizing atmosphere.
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