초록 ▼

The present invention relates to a novel method for forming metal matrix composite bodies and novel products produced by the method. Particularly, a permeable mass of filler material or a preform has included therein at least some matrix metal powder. Moreover, an infiltration enhancer and/or an inf

The present invention relates to a novel method for forming metal matrix composite bodies and novel products produced by the method. Particularly, a permeable mass of filler material or a preform has included therein at least some matrix metal powder. Moreover, an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are in communication with the 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. The presence of powdered matrix metal in the preform or filler material reduces the relative volume fraction of filler material to matrix metal.

대표청구항 ▼

A method for forming a metal matrix composite body comprising: mixing powdered matrix metal and at least one infiltration enhancer precursor with at least one material selected from the group consisting of a substantially non-reactive filler and a substantially non-reactive preform to form a permeab

A method for forming a metal matrix composite body comprising: mixing powdered matrix metal and at least one infiltration enhancer precursor with at least one material selected from the group consisting of a substantially non-reactive filler and a substantially non-reactive preform to form a permeable mass; contacting said permeable mass with a source of molten matrix metal alloy; communicating an infiltrating atmosphere with said permeable mass; spontaneously infiltrating at least a portion of the permeable mass with molten matrix metal; and cooling said matrix metal within said permeable mass thereby forming a metal matrix composite body.