Preparation of composites

Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product

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75232, 75235, 75236, 75244, 419 17, 419 19, 419 23, 419 24, 419 32, 419 33, 419 42, 419 49, B22F 100

Patent

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047495456

ABSTRACT:
This invention relates to metal matrix composites containing at least 40% v/v of a hard material such as SiC and a matrix of aluminium, magnesium or alloys of either. The invention also covers a method of making such composites by ball milling powders of the respective components. Other mixing techniques do not enable such a high proportion of hard material to be incorporated into the composite. The composites are useful to produce components resistant to wear.

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