Crystallization mechanisms of joule-heating-induced crystallization

Abstract

In Joule-heating-induced crystallization, solid-to-solid or liquid-to-solid phase transformation could occur. It was found that novel physical phenomena that randomly nucleated liquid seeds, followed by rapid solidification in an amorphous matrix, during the Joule-heating-up period play an important role especially in liquid-to-solid transformation. Under some processing conditions, super-grains sized 6–8 μm were produced by the lateral growth from the initial seeds, without any artificially control. © 2009 Taylor & Francis Group, LLC.