Articles you may be interested inIn situ structure characterization of Pb(Yb1/2Nb1/2)O3-PbTiO3 crystals under high pressure-temperature Appl.Structure and properties of superelastic hard carbon phase created in fullerene-metal composites by high temperature-high pressure treatment

The electrical contact resistance and the electric erosion wear resistance of the composite mate rial consisting of a copper matrix reinforced by superelastic hard carbon are studied. The reinforcing of CM by carbon particles, which have a unique combination of mechanical properties (high microhardness of 30-35 GPa, elastic modulus of 180-200 GPa, and a high ratio of microhardness to elastic modulus (HV 50 /E > 0.15)), ensures good contact characteristics of the material. The minimum electrical contact resistance of CM is comparable with the electrical contact resistance of a reference sample made of gold. The electric erosion wear resistance of the CM is more than threefold that of chrome bronze, which is a widely used for high cur rent electrical contacts.

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