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Application of Irreversible Thermodynamics to Diffusion in Solids with Internal Surfaces
Journal of Non-Equilibrium Thermodynamics ( IF 6.6 ) Pub Date : 2020-10-25 , DOI: 10.1515/jnet-2020-0021
Anna G. Knyazeva 1
Affiliation  

Abstract Two types of additional variables were included in the set of state variables and were used for a thermodynamic description of diffusion in an ordinary thermodynamic system. Vacancies are included in the mass balance. Internal surfaces are massless but are characterized by some energy, which is included in the energy balance of the thermodynamic system. Fluxes of components, vacancies, and surfaces were expressed via two groups of thermodynamic constitutive equations of with cross effects. The first group follows from the Gibbs equation. These are state equations in a differential form. The second group relates generalized thermodynamic fluxes to generalized thermodynamic forces. It was shown for a binary system that only three of six transfer coefficients are independent even if the mass transfer mechanism caused by the stress gradient is taken into account.

中文翻译:

不可逆热力学在具有内表面的固体扩散中的应用

摘要 状态变量集中包含两类附加变量,用于对普通热力学系统中的扩散进行热力学描述。空缺包括在质量平衡中。内表面是无质量的,但具有一些能量,这些能量包含在热力学系统的能量平衡中。组分、空位和表面的通量通过两组具有交叉效应的热力学本构方程表示。第一组遵循吉布斯方程。这些是微分形式的状态方程。第二组将广义热力学通量与广义热力学力联系起来。
更新日期:2020-10-25
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