The use of metal coated refractory powders to make particulate composites by infiltration

Abstract This paper describes a technique for preparing tin/graphite particulate composites using vacuum infiltration of nickel- and copper-coated graphite powders. Composites made using this technique were analysed chemically to determine graphite content and optical micrographs were taken to investigate their microstructures. It is reported that particulate composites can successfully be produced by infiltrating metal-coated ceramic particles with liquid metals.