| Cd──Sb合金熔体作用浓度计算模型 |
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| 引用本文： | 成国光,张鉴.Cd──Sb合金熔体作用浓度计算模型[J].北京科技大学学报(英文版),1995(2). |
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| 作者姓名： | 成国光 张鉴 |
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| 作者单位： | 北京科技大学冶金系 |
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| 摘 要： | 根据Ｃｄ－Ｓｎ合金相图、电阻率、热容量、偏摩尔熵和粘度，确定该合金熔体的结构单元为Ｃｄ原子，Ｓｂ原子以及Ｃｄ３Ｓｂ２，Ｃｄ４Ｓｂ３和ＣｄＳｂ化合物。基于以上结构单元，并依据含化合物金属熔体的共存理论，推导了Ｃｄ－Ｓｂ合金熔体的作用浓度计算模型。理论计算的Ｎｃｄ，与实测的Ｃｄ的活度值ａ（ｃｄ），完全一致。同时也计算出了以上３种化合物的标准自由能。
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| 关 键 词： | Cd－Sb合金，作用浓度，化合物，活度 |
CALCULATING MODEL OF MASS ACTION CONCENTRATIONS FOR Cd-Sb ALLOY MELT |
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| CHENG GUOGUANG, ZHANG JIAN.CALCULATING MODEL OF MASS ACTION CONCENTRATIONS FOR Cd-Sb ALLOY MELT[J].Journal of University of Science and Technology Beijing,1995(2). |
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| Authors: | CHENG GUOGUANG ZHANG JIAN |
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| Abstract: | According to the Cd-Sb alloy phase diagram, resistivity, heat capacity, partial molar entropy and viscosity,the structural units of this alloy melt have been determined as Cd and Sb atoms as well as Cd3Sb2, Cd4Sb3 and CdSb compounds.Based on these structural units and the coexistence theory of metallic melt structure involing compound formation,a calculating model of mass action concentrations has been deduced.The calculated mass action concentrations Ncd are in good agreement with measured activities acd. The Gibbs standard free energy of formatioin for above three compunds have been obtained too. |
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| Keywords: | Cd-Sb alloy mass action concentration compound activity |
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