Ceramic materials with increased crystallinity from silazane...

Details Ceramic materials with increased crystallinity from silazane... Ceramic materials with increased crystallinity from silazane...

C - Chemistry, Metallurgy

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B

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C04B 35/00 (2006.01) C04B 35/571 (2006.01) C04B 35/589 (2006.01) C04B 41/50 (2006.01) C08K 3/00 (2006.01)

Patent

CA 1242461

CERAMIC MATERIALS WITH INCREASED CRYSTALLINITY FROM SILAZANE POLYMERS ABSTRACT A method of preparing ceramic materials with increased levels of crystalline SiC and/or Si3N4 is described. The method consists of firing a mixture of a R3SiNH-containing silazane polymer and an inorganic compound selected from the group consisting of iron compounds, cobalt compounds, nickel compounds, and copper compounds to an elevated temperature of at least 750°C under an inert atmosphere or in a vacuum until a ceramic material with increased levels of crystalline SiC and/or Si3N4 is obtained.

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