本文在自行研制的测定蒸气压装置上，测定了９个不同成分的Ｓｎ－Ｓｂ合金在９２３，１０２３，１１２３Ｋ时Ｓｂ的活度．据此回归得到了Ｓｎ－Ｓｂ合金在９２３－１１２３Ｋ内ｌｎ＿（γＳｂ）、和Ｘ＿（Ｓｂ）关系的经验式，并根据Ｇｉｂｂｓ－Ｄｕｈｅｍ方程获得了ｌｎ＿（γＳｎ）和Ｘ＿（Ｓｂ）的关系式．结果表明：在９２３－１１２３Ｋ内Ｓｎ－Ｓｂ合金在整个浓度范围内较为接近规则溶液，同时仍为对理想溶液具有较大负偏差的实际溶液．
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.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | FrantikR,McDonaldH．TransElectrochemSoc,1948,88:2432RosenblattGM,BirchenallCE．TransMetSocAIME,1962 |
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