T. Kaplan et al., RESTRICTED APPLICABILITY OF ONSAGER RECIPROCITY RELATIONS TO MODELS OF INTERFACE MOTION, The Journal of chemical physics, 99(10), 1993, pp. 8031-8037
Onsager's reciprocity relations have been applied to the motion of a p
lanar interface in a phase transformation in a two-component system, i
n order to provide a test of kinetic models of alloy solidification. A
lthough applicable to such models in general, Onsager's relations yiel
d no information for a subclass of models in which the thermodynamic d
riving forces are linearly dependent to first order, as is the case fo
r several models of alloy solidification including the continuous grow
th model (CGM) of Aziz and Kaplan. As a consequence, experimental test
s will likely be required to distinguish between these models. If the
CGM is generalized to include diffusion in the growing phase, Onsager'
s relations are applicable under some circumstances.