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首页> 外文期刊>Journal of Materials Science >Role of entropy of fusion in phase transformation and self-diffusion [Review]
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Role of entropy of fusion in phase transformation and self-diffusion [Review]

机译：融合熵在相变和自扩散中的作用[综述]

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The present paper discusses the role of the entropy of fusion vis-a-vis the phase transformation characteristics and the self-diffusion behavior of crystalline matrices. The data correlating the entropy of fusion with these properties in metals, alkali halides and some other inorganic compounds are presented and analyzed. It is shown that the occurrence of a solid-solid state phase transformation decreases the magnitude of the entropy of fusion. In addition, the self-diffusion rates within any class of solids scale inversely with the entropy of fusion. The functional relationship of the entropy of fusion vis-a-vis the compressibility and the volume expansion coefficient is also discussed. The conclusion is that the entropy of fusion is not just a physical parameter describing the energy changes associated with the melting. It is, in fact, related in a substantial manner to the bulk properties of the solid and controls the phase transition characteristics and self-diffusion behavior within any group or class of solids in a uniform and consistent manner. (C) 2004 Kluwer Academic Publishers. [References: 34]
机译：本文讨论了熔融熵相对于相变特性和晶体基质的自扩散行为的作用。给出并分析了金属，碱金属卤化物和一些其他无机化合物中与熔融熵和这些性质相关的数据。结果表明，固-固相变的发生减小了融合熵的大小。另外，在任何一类固体中的自扩散速率与熔融熵成反比。还讨论了融合熵相对于可压缩性和体积膨胀系数的函数关系。结论是，熔化的熵不仅是描述与熔化相关的能量变化的物理参数。实际上，它与固体的整体性质有很大关系，并以统一和一致的方式控制任何组或类别的固体中的相变特性和自扩散行为。 （C）2004 Kluwer学术出版社。 [参考：34]

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