Incorporation of ceramic particles into a copper base matrix to

Details Incorporation of ceramic particles into a copper base matrix to Incorporation of ceramic particles into a copper base matrix to

1990-09-04

1992-06-09

Roy, Upendra

Stock material or miscellaneous articles

All metal or with adjacent metals

Laterally noncoextensive components

420492, B22D 2300

Patent

active

051206129

ABSTRACT:
A method of casting a copper based composite which includes a second phase ceramic particles. A copper or copper based alloy containing a eutectic reactive element is spray cast with the ceramic particles being injected into the spray cast stream of material prior to its being deposited onto the moving substrate. The eutectic reactive element diffuses into the ceramic particles and provides a good bond between the copper based matrix and the second phase ceramic particles. The ceramic particles may be selected from the group consisting of oxides, borides, nitrides, carbides and mixtures thereof. The eutectic reactive materials may include zirconium, chromium, titanium, aluminum and magnesium.

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Singh et al., "Evolution of Microstructure in Spray Cast Cu-Zr", Modern Developments in Powder Metallurgy, vol. 19, 489-502, 1988.
Evans, R. W., A. G. Leatham and R. G. Brooks, "The Osprey Preform Process Powder Metallurgy", vol. 28, No. 1, pp. 13-20, 1985.

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