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THERMODYNAMIC PROPERTIES OF Sn-Sb ALLOYS |
ZENG Wenming;CHEN Nianyi(Shanghai Institute of Metallurgy;Chinese Academy of Sciences;Shanghai 200050);YE Dalun(Kunming University of Science and Technology; Kunming 650093)(Manuscript received 1995-10-24;in revised form 1996-08-13) |
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Cite this article:
ZENG Wenming;CHEN Nianyi(Shanghai Institute of Metallurgy;Chinese Academy of Sciences;Shanghai 200050);YE Dalun(Kunming University of Science and Technology; Kunming 650093)(Manuscript received 1995-10-24;in revised form 1996-08-13). THERMODYNAMIC PROPERTIES OF Sn-Sb ALLOYS. Acta Metall Sin, 1996, 32(12): 1233-1237.
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Abstract The activities of Sb in nine Sn-Sb alloys at 923,1023 and 1123 K were determined by measurement of vapour pressure. By means of regression analysis, the relationship between the natural logarithm of activity coeifficient (lnγSb) and Sb content (XSb) of the alloys at the temperatures ranging from 923 to 1123 K was obtained, and the relationship between lnγSn and XSb also deduced according to Gibbs-Duhem equation. The results show that the nine Sn-Sb alloys at temperatures ranging from 923 to 1123 K are very close to the regular solution,and are also an actual solution with larger negative deviation from ideal solution.
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