Method for forming metal matrix composite bodies with a dispersion casting technique
A method for forming a shaped metal matrix composite body is described, comprising: forming a permeable mass with molten matrix metal; spontaneously infiltrating at least a portion of the permeable mass to form a highly loaded metal matrix composite body; introducing said highly loaded metal matrix composite body and a second matrix metal into a container having a cavity for retaining said highly loaded metal matrix composite body and said second matrix metal; heating said highly loaded metal matrix composite body and said second matrix metal to at least the liquidus temperatures of the matrix metal of said highly loaded metal matrix composite body and said second matrix metal to form a molten suspension; mixing said molten suspension to substantially uniformly disperse said filler material within said molten suspension; providing a mold having a shaped cavity therein; pouring said molten suspension out of said cavity in said container and into said shaped cavity within said mold; and cooling said suspension to form a shaped metal matrix composite body.
- Assignee:
- Lanxide Technology Co., Newark, DE (United States)
- Patent Number(s):
- A; US 5222542
- Application Number:
- PPN: US 7-672064
- OSTI ID:
- 6460839
- Country of Publication:
- United States
- Language:
- English
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