Paper Title:
TiN/Al2O3 Composite Material Synthesized by Aluminothermic Reduction Process in Reductive Atmosphere
  Abstract

TiN/Al2O3 composite material was prepared by aluminothermic reduction of TiO2 in coke bed from mixtures of TiO2 powder and metal Al powder. The phase composition, lattice parameter and microstructure of products after treatment in different temperatures were analyzed by XRD, SEM. The results show that TiN/Al2O3 composite material can be produced in coke bed via aluminothermic reduction reaction. Moreover, the treatment temperature affects the evolution of aluminothermic reaction and morphology of products obviously. The content, grain size and lattice parameter of TiN in products in coke bed increase with the increasing of treatment temperature. Thermodynamically it confirms that metal Al reacts with oxygen in coke bed while it is involved in aluminothermic reduction reaction, and then it causes the lack of Al, which takes part in the aluminothermic reaction leading to a surplus rutile in the products.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
721-723
DOI
10.4028/www.scientific.net/KEM.368-372.721
Citation
J. H. Nie, Y. W. Li, H. Yan, Y. H. Liang, Y. B. Li, "TiN/Al2O3 Composite Material Synthesized by Aluminothermic Reduction Process in Reductive Atmosphere", Key Engineering Materials, Vols. 368-372, pp. 721-723, 2008
Online since
February 2008
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$32.00
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