Interface Motion in Two-Phase Solids with Elastic Misfits

概要

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We examine the stability of solid-solid interfaces when the shear modulus is slightlydifferent in two phases. In a deep quench condition, the elastic energy is minimizedwhen harder regions are elastically isotropic. As simple examples, we derive dynamicequations for disturbances on spherical interfaces of a growing precipitate as well ason planar surfaces separating two uniaxially deformed phases. They show how theMullins-Sekerka instability is modified by the elastic misfit. A new instability ispredicted in the planar interface case.
社団法人日本物理学会の論文
1991-02-15