Reinforcement of alkaline earth aluminosilicate glass-ceramics

Details Reinforcement of alkaline earth aluminosilicate glass-ceramics Reinforcement of alkaline earth aluminosilicate glass-ceramics

C - Chemistry, Metallurgy

04

B

25/133, 261/6

C04B 35/80 (2006.01) C03C 10/00 (2006.01) C03C 14/00 (2006.01)

Patent

CA 1238655

Abstract of the Disclosure The present invention is directed to SiC whisker and/or fiber reinforced glass-ceramic matrix composite articles wherein an alkaline earth aluminosilicate constitutes the predominant crystal phase. More particularly, the compositle articles will consist essentially of 10-60% by weight SiC whiskers and/or 15-70% by volume ceramic fibers and the glass-ceramic matrix will consist essentially, by weight on the oxide basis, of CaO 0-25 MgO 0-15 SrO 0-30 Na2O 0-4 CaO+SrO 10-30 K2O 0-6 Al2O3 25-38 TiO2 0-12 SiO2 35-60 ZrO2 0-15 BaO 0-25 As2O3 0-3 Bao+MgO+Na2O+K2O+TiO2ZrO2+As2O3 0-30 The preferred predominant crystal phase is selected from the group of anorthite and its pseudo-binaries, with mullite, cordierite, barium osumilite, and albite solid solution.

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