The yttrium-bismuth alloy system

Add time:08/11/2019    Source:sciencedirect.com

The yttrium-bismuth alloy system was studied using microscopic, X-ray, thermal, and chemical analyses. An inverted peritectic reaction develops as a result of bismuth additions lowering the 1475 °C transformation temperature of yttrium to 1460 °C. Eutectic reactions occur at 18.5 at.% Bi and 1145 °C, and greater than 99.9 at.% Bi and 209 °C. There are only two intermetallic compounds in the system. The compound YBi melts congruently at 2020 °C and Y5Bi3 results from a peritectic reaction at 1530 °C. The crystal structure of this second compound is discussed.

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