INCREASE IN SOLID CONTENT OF IRIDIUM, INCREASE IN SOLID CONTENT OF RHODIUM, AND ALLOYS OF IRIDIUM AND ALLOYS OF RHODIUM

摘要

PROBLEM TO BE SOLVED: To increase the temporal stability of iridium at high temperature while maintaining the ductility and processability of the material without using the element.;SOLUTION: The addition of calcium and boron in the range of a few parts per million (ppm) increases the temporal stability at a temperature of 1,800°C of iridium, doped as described, by 20 to 30% as comprised to undoped iridium.;COPYRIGHT: (C)2011,JPO&INPIT