Paper Title:
Reaction Diffusion in Mo-Si System above the Melting Point of Silicon
  Abstract

The results of direct kinetic measurements and SEM observations on formation of silicide phases in Mo-Si system at temperatures 1400-1700о С are presented in the work. It was shown, that the formation of MoSi2 proceeds by two different mechanisms and accordingly, two types of microstructures are formed: (i) a compact layer (usually with expressed columnar structure) by the reaction diffusion mechanism; and (ii) separated fine grains by crystallization in the volume of saturated Me-Si melt. A model of product formation is offered which allows to calculate the relative contributions of the two mechanisms of disilicide phase formation at various stages of interaction and to estimate the role each of them in the total process.

  Info
Periodical
Defect and Diffusion Forum (Volumes 237-240)
Edited by
M. Danielewski, R. Filipek, R. Kozubski, W. Kucza, P. Zieba, Z. Zurek
Pages
873-878
DOI
10.4028/www.scientific.net/DDF.237-240.873
Citation
G. S. Galstyan, H. A. Chatilyan, A. G. Kirakosyan, S. L. Kharatyan, A. S. Mukasyan, A. Varma, "Reaction Diffusion in Mo-Si System above the Melting Point of Silicon", Defect and Diffusion Forum, Vols. 237-240, pp. 873-878, 2005
Online since
April 2005
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$32.00
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