Stock material or miscellaneous articles – All metal or with adjacent metals – Laterally noncoextensive components
Patent
1986-05-01
1988-07-26
Brody, Christopher W.
Stock material or miscellaneous articles
All metal or with adjacent metals
Laterally noncoextensive components
420532, 420534, 420590, 148439, C22C 110
Patent
active
047599952
ABSTRACT:
Silicon carbide particulate reinforced aluminum alloy matrix composites are formed using techniques which include agitation of a melt of aluminum alloy, containing magnesium, and silicon carbide particulates in a manner whereby the silicon carbide particles are maintained, during agitation, within the body of the melt; the agitation, which involves shearing or wiping of the particles in the liquid, is carried out under vacuum; and may involve incorporation into the melt of an additional amount of magnesium such that that amount compensates for the amount of magnesium which segregates to the carbide surfaces, and is sufficient to effect strengthening of the resulting composite. Aluminum alloy matrix composites, containing copper, are produced using similar agitation and mixing procedures, with the copper being incorporated in such a way as to discourage reaction between the copper and SiC particles.
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Schuster David M.
Skibo Michael D.
Becker Gordon P.
Brody Christopher W.
Dural Aluminum Composites Corp.
Garmong Gregory O.
Rich James A.
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