Multi-Physics Coupling: Thermal Effects of Phase Transformations

Document Type

Book

Publication Date

1-1-2023

Abstract

A simple argument should convince the reader that for the theory of phase transformations to be realistic, one must consider the OP evolution together with other processes that take place simultaneously with the phase transformations. For instance, in gravitational fields transformations in systems of varying density, e.g., mixtures, cause flow of matter, which has a feedback effect on the transformation. Another example of a transformation taking place simultaneously with a process affected by the transformation is a ferromagnetic transition (see Sect. 3.4 ), which proceeds along with the changes of the magnetic field, which in turn affects the transformation itself. Ferroelectric transformation (Sect. 3.2 ) is accompanied by the changes of the electric field and martensitic (Sect. 3.3 ) by the changes of the stress field. The accompanying processes usually have characteristic length and time scales longer than those of the OP variations; that’s why sometimes they are called “hydrodynamics” modes. The questions that we must answer are: How do we couple the OP evolution to these processes? What physical principles are important here? How do we maintain the thermodynamic (physical) consistency between the descriptions of all processes in the system? Regarding the beams and columns configuration of FTM in Fig. P.1, we are building column 6 now.

This document is currently not available here.

Share

COinS