Method of making metal matrix composite bodies with use of a rea

Details Method of making metal matrix composite bodies with use of a rea Method of making metal matrix composite bodies with use of a rea

1991-12-05

1994-05-31

Bradley, Paula A.

Metal founding

Process

Shaping liquid metal against a forming surface

164100, 164101, B22D 1902

Patent

active

053160690

ABSTRACT:
The present invention relates to a novel process for forming metal matrix composite bodies by using a reactive barrier material. Particularly, an infiltration enhancer or an infiltration enhancer precursor or an infiltrating atmosphere are in communication with a filler material or a preform, at least at some point during the process, which permits molten matrix metal to spontaneously infiltrate the filler material or preform up to the reactive barrier material. Such spontaneous infiltration occurs without the requirement for the application of any pressure or vacuum. Accordingly, shaped metal matrix composite bodies can be produced having superior surface finish.

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