Analytical Derivation of the Sauer-Freise Flux Equation for Multicomponent Multiphase Diffusion Couples with Variable Partial Molar Volumes

Autor: William J. Boettinger, Geoffrey B. McFadden, Robert F. Sekerka
Rok vydání: 2016
Předmět:
Zdroj: Journal of Phase Equilibria and Diffusion. 37:640-650
ISSN: 1863-7345
1547-7037
DOI: 10.1007/s11669-016-0500-0
Popis: The well-known Sauer-Freise flux equation is derived analytically for the general case of a multiphase, multicomponent diffusion couple with variable molar volume. Discontinuities in concentration versus distance data are specifically treated. Fluxes with respect to the local center of volume are employed if the partial molar volumes are constants. Fluxes with respect to the local center of moles are employed for the more general case of variable partial molar volumes.
Databáze: OpenAIRE