Fiber reinforced ceramic matrix composites exhibiting improved high-temperature strength
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United States of America Patent
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Nov 17, 1992
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app pub date -
Nov 3, 1988
filing date -
Nov 3, 1988
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Abstract
Fiber-reinforced ceramic matrix composite products comprising boron-nitride-coated reinforcing silicon carbide fibers disposed in a substantially non-porous alkaline earth aluminosilicate glass-ceramic matrix are disclosed, the matrix comprising triclinic anorthite (CaO,SrO.Al.sub.2 O.sub.3.2SiO.sub.2) as the principal crystal phase and the products exhibiting unexpectedly good resistance to high-temperature degradation.
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