Molybdenum disilicide matrix composite

Details Molybdenum disilicide matrix composite Molybdenum disilicide matrix composite

1989-06-05

1990-05-22

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

C04B 3556, C04B 3558

Patent

active

049277928

ABSTRACT:
A composition consisting of an intermetallic compound, molybdenum disilicide, which is reinforced with VS silicon carbide whiskers dispersed throughout it and a method of making the reinforced composition. Use of the reinforcing material increases fracture toughness at low temperatures and strength at high temperatures, as compared to pure molybdenum disilicide.

REFERENCES:
patent: 4543345 (1985-09-01), Wei
Frank D. Gac et al., "Feasibility of a Composite of SiC Whiskers in an MoSi.sub.2 Matrix," Commun. of the Am. Ceram. Soc. 68, No. 8, pp. C-200-201 (Aug. 1985).
David H. Carter et al., "Crack Deflection as a Toughening Mechanism in SiC-Whisker-Reinforced MoSi.sub.2, " Commun. of the Am. Ceram. Soc. 70, No. 4, pp. C-79-81 (Apr. 1987).
W. S. Gibbs, et al., "SiC Whiskers-MoSi.sub.2 Matrix Composites," Ceram. Eng. Sci. Proc. 8 (7-8), pp. 645-648 (1987).

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