The choice of reaction path during ternary diffusion process

5th International Conference on Mathematical Modeling in Physical Sciences

物理学;数学

Wierzba, Bartek^1

Rzeszów Uniwersity of Technology, Faculty of Mechanical Engineering and Aeronautics, al. Powstaców Warszawy 12, Rzeszów

35-959, Poland^1

关键词: Diffusion paths;    Entropy production;    Interdiffusion process;    Multi phase systems;    Reaction paths;    Ternary diffusion;    Three component;    Two-phase zones;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/738/1/012047/pdf
DOI  :  10.1088/1742-6596/738/1/012047

来源: IOP

【 摘 要 】

The complete understanding of the phenomenological process related to the evolution of the ternary multiphase system is still lacking. In this paper the ternary interdiffusion process in multiphase system is discussed by means of numerical modeling. The entropy production principle is proposed to chose the proper diffusion path during the process (e.g. internal oxidation). The bi-velocity method of the three-component multi-phase system is presented. The simulations show the local entropy production curve that determines the thickness of the two-phase zone.