INTERFACE SHAPE AND CONCENTRATION DISTRIBUTION IN CRYSTALLIZATION FROM SOLUTION UNDER MICROGRAVITY

doi:10.1088/1004-423X/8/12/001

Abstract

Abstract The influence of the gravity and interface kinetics on interface shape and interfacial concentration distribution was numerically investigated by using Galerkin finite element method.A boundary mapping technique was used for dealing with free boundary problem. A two-dimensional steady-state model of TGS crystal growth was developed. The results show that with the increase of the gravity level, the growth rate becomes faster, the growth face becomes more curved and interfacial concentration distribution more non-uniform. The consideration of interface kinetics will cause the decrease of growth rate as compared with the pure transport model. It seems that the interface shape does not change very much within two cases of k=5.7cm⁴/(mol·s) and k=∞, but its position does.

Received: 13 May 1999
Accepted manuscript online:

PACS:	81.10.Aj	(Theory and models of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)
	68.35.Ct	(Interface structure and roughness)
	02.70.Dh	(Finite-element and Galerkin methods)
	02.60.Lj	(Ordinary and partial differential equations; boundary value problems)
	81.10.Dn	(Growth from solutions)

Fund: Project supported by the National Commission of Science and Technology(Grant No.95-Yu-34),and by the Foundation of National Education Commission.

Cite this article:

LIU YONG-CAI (刘永才), CHEN WAN-CHUN (陈万春), HUO CHONG-RU (霍崇儒), GE PEI-WEN (葛培文) INTERFACE SHAPE AND CONCENTRATION DISTRIBUTION IN CRYSTALLIZATION FROM SOLUTION UNDER MICROGRAVITY 1999 Acta Physica Sinica (Overseas Edition) 8 881

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INTERFACE SHAPE AND CONCENTRATION DISTRIBUTION IN CRYSTALLIZATION FROM SOLUTION UNDER MICROGRAVITY

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