| 摘要 |
PURPOSE:To stabilize the contact resistance of an Ag-Ni type electrical contact material without deteriorating the characteristics of Ag-Ni even in case of a mechanism of a reduced size by adding a Pt group element to the contact material. CONSTITUTION:This electrical contact material consists of 5-30wt% Ni, 0.1- 5wt% one or more among Pt, Pd, Rh, Ir, Ru and Os, and the balance Ag. The contact material is formed by uniformly dispersing one or more among Pt, Pd, Rh, Ir, Ru and Os each having a high m.p. and undergoing hardly oxidation in an Ag-Ni alloy to prevent the coagulation of Ni, so the contact material has improved contact performance. Each of said metals is decomposed when oxidized. |
