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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.117  No.1364 (April) (2009)  >  pp.525-528

Journal of the Ceramic Society of Japan
<<Previous article Vol.117  No.1364 (April) (2009)   pp.525 - 528 Next article>>

Effect of reactant C/Ti ratio on the stoichiometry of Combustion-synthesized TiCx in Ti-C system

Binglin ZOU1), Shenbao JIN1), Ping SHEN1) and Qichuan JIANG1)
1) Key Laboratory of Automobile Materials, Department of Materials Science and Engineering, Jilin University

  In this study, self-propagating high-temperature synthesis (SHS) of the powder compact consisting of titanium and graphite was used to synthesize titanium carbide (TiCx). The relationship between the C/Ti ratio in the reactants and the stoichiometry of the resultant TiCx phase was investigated. The result showed that when the molar ratio of C to Ti in the reactants increased from 0.6 to 1.2, the stoichiometry of the resultant TiCx phase first increased and then decreased with the maximum value appearing at C/Ti = 1.0, so did the change in the maximum combustion temperature; Furthermore, with an increase in the particle size of graphite, the maximum combustion temperature and the stoichiometry of the resultant TiCx phase decreased. Consequently, the maximum combustion temperature might play a dominating role in determining the final composition of the TiCx phase.


Keyword:
Self-propagating high-temperature synthesis (SHS), X-ray diffraction (XRD), Ceramic, Carbide, Defect

Received: June 25, 2008
Accepted: October 16, 2008 , Published online: April 01, 2009
Copyright (c) 2009 The Ceramic Society of Japan

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