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A METHOD OF FORMING METAL MATRIX COMPOSITE BODIES BY UTILIZING A CRUSHED POLYCRYSTALLINE OXIDATION REACTION PRODUCT AS A FILLER, AND PRODUCTS PRODUCED THEREBY
A METHOD OF FORMING METAL MATRIX COMPOSITE BODIES BY UTILIZING A CRUSHED POLYCRYSTALLINE OXIDATION REACTION PRODUCT AS A FILLER, AND PRODUCTS PRODUCED THEREBY
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机译:一种利用破碎的多晶氧化反应产物作为填料形成金属基质复合体的方法,及其生产的产品
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摘要
The present invention relates to a novel method for forming metal matrix composite bodies and novel metal matrix composite bodies produced thereby. Particularly, a polycrystalline oxidation reaction product of a parent metal and an oxidant is first formed. The polycrystalline oxidation reaction product is thereafter comminuted into an appropriately sized filler material (2) which can be placed into a suitable container (4) or formed into a preform. The filler material or preform of comminuted polycrystalline oxidation reaction product (2) is thereafter placed into contact with a matrix metal alloy (1) in the presence of an infiltration enhancer, and/or an infiltration enhancer precursor and/or an infiltrating atmosphere, at least at some point during the process, whereupon the matrix metal alloy (1) spontaneously infiltrates the filler material or preform. As a result of utilizing comminuted or crushed polycrystalline oxidation reaction product, enhanced infiltration (e.g., enhanced rate or amount) is achieved. Moreover, novel metal matrix composite bodies are produced.
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