Composite material with multiple interphases between refractory reinforcing fibers and ceramix matrix
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United States of America Patent
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Jul 28, 1992
Grant Date -
N/A
app pub date -
Jan 9, 1990
filing date -
Jan 13, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A layer (16) forming interphase in a material having a lamellar structure is situated between the fibers of the texture and the matrix, and at least one layer (14) forming control interphase is situated between the surface of the fibers (10) and the lamellar interphase (16) in such a way as to define, for those cracks which have spread through the matrix (18) and the lamellar interphase (16), a preferential propagation zone away from direct contact with the actual fibers (10).
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