期刊
PHASE TRANSITIONS
卷 79, 期 4-5, 页码 277-283出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/01411590600703137
关键词
liquid Bi-Sb alloys; electrical resistivity; liquid-liquid transition
The electrical resistivities of liquid Bi - Sb alloys have been measured by DC four-probe method within Bi-rich composition through a wide temperature range. The distinct anomaly of a hump shape was observed on resistivity - temperature (rho - T) curves for liquid Bi - Sb alloys on heating at the relatively high temperatures. These anomalies have revealed the temperature- induced liquid - liquid phase transition in Bi - Sb melts. The DSC results for BiSb20wt% alloy further prove the existence of liquid - liquid transition. Measuring the rho - T curves first on heating and then on cooling we have found that on cooling the rho - T curve remained linear. It means that the postulated liquid - liquid transition may be irreversible.
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