作者: Zhong-Yue Huang , Yun Xi , Fang-Qiu Zu , Xian-Fen Li , Guo-Hua Ding
DOI: 10.1016/J.JCRYSGRO.2009.06.046
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摘要: Abstract The compound-forming alloy Bi-40 wt%Te was selected to explore effects of the temperature-induced liquid–liquid structure transition (TI-LLST) on solidification. resistivity–temperature pattern molten suggested that an irreversible TI-LLST occurred from 694.6 723.2 °C as temperature elevated. When solidified melt undergoing TI-LLST, solidification undercooling primary phase Bi 2 Te 3 enlarged and its growth manner obviously changed, resulting in spirally curling refined branches, contrary orientated thick rod-like crystals failed undergo TI-LLST. Moreover, volume fraction peritectic increased 30.6% 56.4%, which implied competition behavior during reaction also changed.