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    • 8. 发明授权
    • Metal matrix composite bodies utilizing a crushed polycrystalline
oxidation reaction product as a filler
    • 使用破碎的多晶氧化反应产物作为填料的金属基质复合体
    • US5541004A
    • 1996-07-30
    • US303567
    • 1994-09-09
    • Marc S. NewkirkMichael K. Aghajanian
    • Marc S. NewkirkMichael K. Aghajanian
    • B22D19/14C22C1/10C22C21/00C22C47/08C22C1/09
    • C22C1/1036C22C2001/1057C22C2001/1063Y10T428/12007Y10T428/12486
    • 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 which can be placed into a suitable container or formed into a preform. The filler material or preform of comminuted polycrystalline oxidation reaction product is thereafter placed into contact with a matrix metal alloy 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 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.
    • 本发明涉及一种形成金属基复合体的新颖方法和由其制造的新型金属基复合体。 特别地,首先形成母体金属和氧化剂的多晶氧化反应产物。 然后将多晶氧化反应产物粉碎成适当尺寸的填充材料,其可以放置在合适的容器中或形成预成型体。 此后,在渗透增强剂和/或渗透增强剂前体和/或渗透气氛的存在下,将粉末状多晶氧化反应产物的填料或预成型体置于基质金属合金中,至少在 因此基体金属合金自发地渗入填料或预成型体。 作为利用粉碎或破碎的多晶氧化反应产物的结果,实现了增强的渗透(例如增强的速率或量)。 此外,还生产出新颖的金属基复合体。