Silicon carbide fiber-reinforced titanium base composites having

Details Silicon carbide fiber-reinforced titanium base composites having Silicon carbide fiber-reinforced titanium base composites having

1989-12-22

1991-09-03

Morris, Theodore

Stock material or miscellaneous articles

All metal or with adjacent metals

Laterally noncoextensive components

427 34, C22C 109, C22C 1400

Patent

active

050454072

ABSTRACT:
The matrix is an alloy having an alpha-2 crystal form. The matrix is reinforced with silicon carbide filaments. To reduce the tendency of the matrix to form cracks due to the brittle nature of the interface with the SiC filaments, the surface of the filaments is coated with a beta phase stabilizer composition. Such a composition contains at least one element selected from the group consisting of Mo, Cr, W, Ta, Pd, Nb, Ag, Zr, Hf, V, Re, Ir, Mn, Fe, Co, Ni, Cu, Pt, Au, and Sn.

REFERENCES:
patent: 4782884 (1988-11-01), Siemers
Singh, "Fiber/Matrix Interfacial Characteristics in Fiber-Reinforced, Ceramic-Matrix Composite", Engineered Materials Ab. 8912-C1-D-2455.
Brewer et al., "Metallurgical and Tensil Property Analysis of Several Silicon Carbide/Titanium . . . ", Metals Abs 84-620054 and 82-630400.
Sakai et al., "Compatibility of Nickel Coated Sic Fibers", Nonferous Metals Abstract #8200849.

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