Hindler Michael, Guo Zhongnan, Mikula Adolf
Institute of Inorganic Chemistry/Material Chemistry, University of Vienna, A-1090 Vienna, Austria.
Institute of Inorganic Chemistry/Material Chemistry, University of Vienna, A-1090 Vienna, Austria ; Department of Chemistry, School of Applied Science, University of Science and Technology Beijing, 100083 Beijing, PR China.
J Chem Thermodyn. 2012 Dec;55(6):102-109. doi: 10.1016/j.jct.2012.06.024.
The thermodynamic properties of liquid (Au-Sb-Sn) alloys were studied with an electromotive force (EMF) method using the eutectic mixture of KCl/LiCl with addition of SnCl as a liquid electrolyte. Activities of Sn in the liquid alloys were measured at three cross-sections with constant molar ratios of Au:Sb = 2:1, 1:1, and 1:2 with tin in the concentration range between 5 at.% and 90 at.% from the liquidus of the samples up to 1073 K. The integral Gibbs excess energies and the integral enthalpies at 873 K were calculated by Gibbs-Duhem integration. Additionally liquid Au-Sb alloys have been measured at 913 K with the EMF method as no reliable data for the Gibbs excess energies have been found in literature. The eutectic mixture of KCl/LiCl with addition of SbCl has been used as an electrolyte for the measurements. The Gibbs excess energies from the (Au + Sb) system were necessary for the integration of the thermodynamic properties of the ternary (Au + Sb + Sn) system.
采用电动势（EMF）法，以添加SnCl的KCl/LiCl共晶混合物作为液体电解质，研究了液态（Au-Sb-Sn）合金的热力学性质。在Au:Sb摩尔比恒定为2:1、1:1和1:2的三个截面上测量了液态合金中Sn的活度，Sn的浓度范围为5 at.%至90 at.%，温度范围从样品的液相线到1073 K。通过吉布斯-杜亥姆积分计算了873 K时的积分吉布斯过剩能和积分焓。此外，由于文献中未找到吉布斯过剩能的可靠数据，采用电动势法在913 K下对液态Au-Sb合金进行了测量。添加SbCl的KCl/LiCl共晶混合物被用作测量的电解质。（Au + Sb）体系的吉布斯过剩能对于三元（Au + Sb + Sn）体系热力学性质的积分是必要的。
