To dissolve a problem that, in the case a large parts is produced by an impregnating method in which a metal is impregnated into a preform, pores with >1mm dimension are generated, and since they are concentrated, a strength of a product is drastically deteriorated.
This method for producing a metal-ceramics composite material is the one in which a preform is formed with ceramics fibers or particles as a reinforcing material, and the preform is impregnated with metal as a base material. In this case, the preform is composed of SiC powder having 1 to 100μm average particle size and ≥50% powder packing ratio, and the preform is impregnated with an aluminum alloy of Al-Si-Mg series or Al-Mg series at 700 to 1000°C, which is thereafter slowly cooled in a furnace.
KIMURA MITSUYOSHI
NAITO KAZUNARI
TAKAHASHI HEISHIRO
HAYASHI MUTSUO
SERANKUSU KK
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