Abstract: This paper discusses the mechanical properties of a material fabricated from commercially available metal
powder mixtures designed for use as a metal matrix of diamond impregnated composites. The mixtures with the
catalogue numbers CSA and CSA800 provided by a Chinese producer are suitable for experimental laboratory
testing. The specimens were fabricated in a graphite mould using hot pressing. The material was tested for
density, porosity, hardness, and tensile strength under static loading. A scanning electron microscope (SEM) was
used to analyze the microstructure and cleavage fracture of broken specimens. It was essential to determine how
the chemical composition and the fabrication process affected the microstructure and properties of the material.
The properties of the sinters were compared with those of hot pressed specimens fabricated from sub-micron
size cobalt powder (Cobalt SMS). Although the as-consolidated material is inferior to cobalt, it displays a
favourable combination of hardness, yield strength and ductility, and seems to have a great potential for
moderate and general purpose applications.
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