Compositions: ceramic – Ceramic compositions – Devitrified glass-ceramics
Patent
1997-07-17
2000-03-07
Group, Karl
Compositions: ceramic
Ceramic compositions
Devitrified glass-ceramics
501 32, 65 337, C03C 1006, C03C 1400
Patent
active
060340126
ABSTRACT:
Composite material comprising a CAS+BAS vitroceramic matrix reinforced with SiC fibers and exhibiting a small difference between the thermal expansion coefficients of the matrix and the fibers is obtained by using a matrix having a BaO/(BaO+CaO) molar ratio of between 25% and 55% and predominant phases of triclinic anorthite and monoclinic celsian.
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El-Shennawi, et al ., "The Crystallisation of Celsian Polymorphs in Some aline Earth Aluminosilicate Glasses", Glass Technology, vol. 32, No. 4, Aug. 1, 1991, pp. 131-137.
Ange Laurent Yves Emile Marie
Gauthier Gerard Philippe
Obradovic Susanne
Sudre Olivier Henri
Verdier Patrick Victor Auguste
Group Karl
Office National D'Etudes Et De Recherches Aerospatiales (ONERA)
Societe National D'Etude Et De Construction De Moteurs D'Aviatio
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