THERMAL-GRADIENT INDUCED SIDEBRANCHING IN DIRECTIONAL SOLIDIFICATION

Authors
GEORGELIN M POCHEAU A
Citation
M. Georgelin et A. Pocheau, THERMAL-GRADIENT INDUCED SIDEBRANCHING IN DIRECTIONAL SOLIDIFICATION, EUROPEAN PHYSICAL JOURNAL B, 4(2), 1998, pp. 169-174
Citations number
19
Categorie Soggetti
Physics, Condensed Matter
Journal title
EUROPEAN PHYSICAL JOURNAL B → ACNP
ISSN journal
14346028
Volume
4
Issue
2
Year of publication
1998
Pages
169 - 174
Database
ISI
SICI code
1434-6028(1998)4:2<169:TISIDS>2.0.ZU;2-5
Abstract
The effect of thermal gradient on sidebranching is studied experimenta lly in directional solidification of impure succinonitrile. An experim ental procedure capable of changing thermal gradient while keeping pul ling velocity and cell-spacing constant is applied. It enables us to d irectly observe the effect on sidebranching of the sole change of ther mal gradient. It is found that increase of thermal gradient enhances s idebranch amplitude and reduces sidebranching onset.