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首页> 外文期刊>Scripta materialia >ON THE THERMODYNAMIC INTERRELATIONSHIP BETWEEN ENTHALPY, VOLUME THERMAL EXPANSION AND BULK MODULUS
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ON THE THERMODYNAMIC INTERRELATIONSHIP BETWEEN ENTHALPY, VOLUME THERMAL EXPANSION AND BULK MODULUS

机译：焓，体积热膨胀和本体模量之间的热力学相互关系

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摘要

For many materials of practical interest, the available thermal and elastic property information is often incomplete and at times plagued by considerable uncertainty as well. In order to obtain the required thermophysical data in the experimentally unexplored regime, it becomes necessary to adopt some interpolation or extrapolation schemes that are based on established theoretical considerations. It is a general observation that the thermophysical data for most of the engineering materials, save a few standard ones, are somewhat inhomogeneous in character. This is to mean that the availability of reliable experimental information on a particular physical property over an extended temperature and pressure range is often accompanied by only a paucity of data for other physical quantities. Thus, there is a genuine need to find ways of estimating the missing quantities from the existing ones in such a way that the overall thermodynamic consistency of the composite database as a whole is also preserved in the process. It is with this aim, that in the present paper, we attempt to develop certain simple thermodynamic relations connecting thermal and elastic properties. The relevant theoretical framework is discussed below.
机译：对于许多具有实际意义的材料，可用的热和弹性特性信息通常是不完整的，有时还受到相当大的不确定性的困扰。为了在未经实验的条件下获得所需的热物理数据，有必要采用一些基于既定理论考虑的插值或外推方案。普遍观察到，除少数标准材料外，大多数工程材料的热物理数据的特性有些不均匀。这意味着在扩展的温度和压力范围内，有关特定物理性质的可靠实验信息的可用性通常仅伴随着其他物理量的少量数据。因此，真正需要找到一种方法来估算现有数量中的缺失量，从而在此过程中也保留整个复合数据库的整体热力学一致性。出于这个目的，在本文中，我们试图开发一些简单的热力学关系，将热和弹性性质联系起来。相关理论框架在下面讨论。

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