Abstract

A massive drop calorimeter with an isothermal shell was used to measure the enthalpy increment of the intermetallic compound RbBi₂ in solid and liquid states in the temperature range of 432–1176 K. Approximating equations are obtained, and the isobaric heat capacity and enthalpy change on melting are determined. The estimated errors of the data on enthalpy and heat capacity were 0.4% and 1.0%, respectively. The enthalpy of alloy formation in the liquid state is determined. The obtained data are compared with the results of the calculations according to the law of ideal solutions.

中文翻译：

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凝聚态 RbBi2 合金的热性能

摘要

采用等温壳大滴量热仪测量了金属间化合物RbBi ₂在432~1176 K温度范围内固态和液态的焓增量，得到了近似方程，得到了等压热容和焓变熔化是确定的。焓和热容量数据的估计误差分别为 0.4% 和 1.0%。测定液态合金形成的焓。根据理想解定律将获得的数据与计算结果进行比较。