Thermodynamic Study on High Temperature Intermetallic and Inorganic Compounds

在最近几年中，合金系统和金属复合物在III和V元素之间的兴趣增加了，因为它们可能的使用作为高价值功能材料。《The understanding of the thermochemical and thermodynamic properties of these alloys would be significant to the related researches》。本研究获得的结果大致如下;（1）九个III-V化合物的热含量由Al、Ga或In和P、As或Sb确定为700 - 1250 ° C，并在与温度的关系中产生了标准的无能量变化。（2）液体Ga-As和In-As系统的热动力学数量是基于这些二进制合金的热含量-温度-组合系数衍生出来的。（3）Cu-Y、La、Ce、Pr和Nd二进制系统的热量含量在700 - 1100 ° C时被确定，热化学性质作为特定的热量、聚变的热量和聚变的入口。（4）Ni-La、Ce、Pr和Nd二进制系统和Ni-La-Ce、Ni-La-Pr或Ni-La-nd交替系统中的氢关系确定在900 - 1250 ° C之间。

In recent years there has been increasing interest in the alloy systems and intermetallic compounds between III and V elements or rare earth and transition metals because of their potential usage as high value functional materials. The understanding of the thermochemical and thermodynamic properties of these alloys would be significant to the related researches. The results obtained in this study are summarized as follows;(1) Heat contents of nine III-V compounds composed of Al, Ga or In and P, As or Sb were determined at 700 - 1250゜C, and the standard free energy changes were derived in relation to temperature.(2) Thermodynamic quantities of the liquid Ga-As and In-As systems were derived based on the heat content-temperature-composition polts for these binary alloys. (3(3) Heat contents of the Cu-Y, La, Ce, Pr and Nd binary systems were determined at 700 - 1100゜C, and the thermochemical properites such as specific heat, heat of fusion and entropy of fusion were derived.(4) hase relations in the Ni-La, Ce, Pr and Nd binary systems and the Ni-La-Ce, Ni-La-Pr or Ni-La-nd ternary systems were determined at 900 - 1250゜C.