| 简介 |
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.
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