The platinum iridium alloy which features that

摘要

PROBLEM TO BE SOLVED: To provide a platiniridium alloy having high durability, in which crystal grains are not coarsened even though having been used at high temperature for a long period of time.;SOLUTION: This platiniridium alloy is produced by adding an alkaline-earth metal element to a conventionally used platiniridium alloy to precipitate particles of an intermetallic compound therein. Thereby, the grain growth while being used at high temperature is suppressed.;COPYRIGHT: (C)2010,JPO&INPIT