Abstract

The thermal conductivity and thermal diffusivity of liquid alloys of rubidium–bismuth systems with Bi contents of 27.0, 50.0, and 66.7 at % are studied in the range of temperatures from the liquidus line to 1173 K using laser flash method. Equations are obtained for approximating the studied properties. Analysis of the temperature and concentration dependences of thermal conductivity and thermal diffusivity indicates the presence of ionic complexes in Rb–Bi melts that decompose as the temperature rises.

中文翻译：

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Rb-Bi 系统液态合金的传热系数

摘要

使用激光闪光法在液相线至 1173 K 的温度范围内研究了铋含量为 27.0、50.0 和 66.7 at % 的铷-铋系统液态合金的热导率和热扩散率。获得用于近似研究性质的方程。对热导率和热扩散率的温度和浓度依赖性的分析表明，随着温度升高，Rb-Bi 熔体中存在离子络合物。