ABSTRACT In the studies related to thermodynamic and structural functions of liquid alloys at high temperatures using linear temperature-dependent interaction parameters, in some cases, artificial miscibility gaps or artefacts are noticed. These artificial miscibility gaps in these functions at higher temperatures are usually asymmetric with respect to the concentration. The presence of the artificial miscibility gaps in the properties of the alloys at higher temperatures makes them less reliable and such data cannot be accepted at all. In the present work, we have computed thermodynamic and structural properties of liquid Al–Li alloy at temperatures 800, 1300 and 2000 K in the framework of Redlich–Kister (R-K) polynomials assuming interaction parameters to be linear temperature dependent and some artefacts were observed in these functions at around 2000 K. We have then obtained the optimised set of exponential temperature-dependent interaction parameters and computed the properties of the alloy again from the same polynomials where no miscibility gap was noticed at higher temperatures.

中文翻译：

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Al-Li液态合金相互作用参数的温度依赖性

摘要 在使用线性温度相关相互作用参数对高温下液态合金的热力学和结构函数进行的研究中，在某些情况下，会注意到人工混溶间隙或人工制品。在较高温度下，这些函数中的这些人工混溶性间隙通常相对于浓度是不对称的。合金在较高温度下的性能中存在人为的混溶性差距，这使得它们的可靠性较低，并且根本无法接受此类数据。在目前的工作中，我们计算了液态铝锂合金在 800 温度下的热力学和结构特性，