Supergrains produced by lateral growth using Joule-heating induced crystallization without artificial control
- Authors
- Hong, Won-Eui; Chung, Jangkyun; Kim, Donghyun; Park, Seungho; Ro, Jae-Sang
- Issue Date
- 1-Feb-2010
- Publisher
- AMER INST PHYSICS
- Keywords
- crystal growth; crystallisation; grain growth; nucleation; rapid solidification; solid-liquid transformations; solid-state phase transformations
- Citation
- APPLIED PHYSICS LETTERS, v.96, no.5
- Journal Title
- APPLIED PHYSICS LETTERS
- Volume
- 96
- Number
- 5
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/20845
- DOI
- 10.1063/1.3253704
- ISSN
- 0003-6951
- Abstract
- In Joule-heating induced crystallization, phase transformation can occur through solid-to-solid or liquid-to-solid phases, according to the input conditions of the pulsed power. It was observed that during a Joule-heating period of several tens of microseconds, randomly nucleated liquid seeds followed by rapid solidification in an amorphous matrix play an important role, especially for liquid-to-solid transformation. Meanwhile, under high-power input processing conditions, supergrains of greater than 5 mu m in size were produced by lateral growth from the initial seeds without artificial control.
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- Appears in
Collections - College of Engineering > Materials Science and Engineering Major > 1. Journal Articles
- College of Engineering > Department of Mechanical and System Design Engineering > 1. Journal Articles
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