Correlation between temperature dependences of thermal expansivity and heat capacity up to the melting point of tantalum

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• 作者：V. Yu. Bodryakov
• 刊名：High Temperature
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：54
• 期：3
• 页码：316-321
• 全文大小：529 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Atoms and Molecules in Strong Fields and Plasma Physics
  Materials Science
  Mechanics, Fluids and Thermodynamics
  Physical Chemistry
  Industrial Chemistry and Chemical Engineering
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3156
• 卷排序：54

文摘

Following the course of previously published series, this work studies in detail the correlation of the volumetric thermal expansion coefficient β(T) and the heat capacity C(T) of refractory tantalum. It is demonstrated that a clear correlation β(C) takes place in the lower temperature range and remains up to the metal melting point inclusively. Significant deviation from lower temperature linear behavior of the β(C) dependence occurs when the heat capacity reaches the classical 3R Dulong–Petit limit. The temperature dependence of differential Grüneisen parameter γ' ~ (∂β/∂С) is estimated.Original Russian Text © V.Yu. Bodryakov, 2016, published in Teplofizika Vysokikh Temperatur, 2016, Vol. 54, No. 3, pp. 336–342.