Patent ID: 7001473
Filing Date: 2006-02-21
Classification: C22C,C22F

Abstract:
1. Method for producing platinum/copper alloys comprising: a step for melting at least one predetermined quantity of platinum and at least one predetermined quantity of copper so as to obtain a fusion product with a corresponding platinum content; a step for holding said fusion product at the melting temperature of said fusion product or at a higher temperature in order to homogenize the fusion product; said method being characterized by the fact of subjecting said fusion product to a heat treatment which consists in holding said fusion product at temperatures ranging between 900° C. and 1400° C., for a time period ranging between 2 and 20 hours, so as to obtain a platinum/copper alloy devoid of phase separation products, wherein said content by weight of platinum is between 375/1000 and 800/1000, the residual fraction by weight consisting substantially of copper, and in that said holding step is performed for a time period ranging from 1 hour to 10 hours.