Electrical contact material

摘要

Electrical contact material of this invention consists of 10 to 20 percent by weight of nickel, 0.05 to 2 percent by weight of titanium boride and the balance tungsten. Conventionally, nickel-tungsten alloy shows poor mechanical properties (e.g. brittleness) although the alloy shows high oxidation resistance and can be produced in an inexpensive way. Inclusion of titanium boride greatly improves the mechanical properties of such alloy, thereby enabling the cheap production of electrical contact material which has sufficient practical use.