Polymer precursor for silicon carbide/aluminum nitride ceramics

Details Polymer precursor for silicon carbide/aluminum nitride ceramics Polymer precursor for silicon carbide/aluminum nitride ceramics

C - Chemistry, Metallurgy

08

G

C08G 77/62 (2006.01) C04B 35/56 (2006.01) C04B 35/571 (2006.01) C04B 35/581 (2006.01) C08G 77/60 (2006.01) C08G 79/00 (2006.01) C08L 83/16 (2006.01) D01F 9/10 (2006.01)

Patent

CA 2088553

b:jensen3.ff PATENT Jensen Case 3 POLYMER PRECURSOR FOR SILICON CARBIDE/ ALUMINUM NITRIDE CERAMICS Abstract of the Disclosure A block copolymer is prepared by reacting an aluminum- nitrogen polymer and a silazane polymer at a temperature not greater than 400°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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