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Numerical investigation of crystal growth in a vertical Bridgman configuration using a mushy region model

B. BARVINSCHI1, P. BARVINSCHI1,*

Affiliation

  1. Faculty of Physics, West University of Timisoara, Bd. V. Parvan 4, 300223 Timisoara, Romania

Abstract

This paper considers an axisymmetric numerical model developed in COMSOL Multiphysics for the simulation of the directional solidification of a melt in an idealized vertical Bridgman configuration. The solidification of the melt, including the convection and conduction heat transfer with mushy region phase change, is modeled using a slightly modified version of a method presented by Voller and Prakash [1]. Using different thermal conditions the model was applied for the study of the effect of the axial thermal gradients and the flow in the melt on the solid-liquid interface deflection and shape, during the solidification of InSb and respectively CaF2 melts..

Keywords

Computer simulation; Bridgman technique; Mushy region; Interface shape.

Submitted at: Feb. 23, 2015
Accepted at: March 19, 2015

Citation

B. BARVINSCHI, P. BARVINSCHI, Numerical investigation of crystal growth in a vertical Bridgman configuration using a mushy region model, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 3-4, pp. 431-438 (2015)