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http://dx.doi.org/10.4150/KPMI.2017.24.1.29

Fabrication of TiC powder by carburization of TiH2 powder  

Lee, Hun-Seok (Materials Implementation Department, Korea Institute Materials Science (KIMS))
Seo, Hyang-Im (Materials Implementation Department, Korea Institute Materials Science (KIMS))
Lee, Young-Seon (Materials Deformation Department, Korea Institute Materials Science (KIMS))
Lee, Dong-Jun (Materials Deformation Department, Korea Institute Materials Science (KIMS))
Wang, Jei-Pil (Department of Metallurical Enginerring, Pukyong National University)
Lee, Dong-Won (Materials Implementation Department, Korea Institute Materials Science (KIMS))
Publication Information
Journal of Powder Materials / v.24, no.1, 2017 , pp. 29-33 More about this Journal
Abstract
Titanium carbide (TiC) powders are successfully synthesized by carburization of titanium hydride ($TiH_2$) powders. The $TiH_2$ powders with size lower than $45{\mu}m$ (-325 Mesh) are optimally produced by the hydrogenation process, and are mixed with graphite powder by ball milling. The mixtures are then heat-treated in an Ar atmosphere at $800-1200^{\circ}C$ for carburization to occur. It has been experimentally and thermodynamically determined that the de-hydrogenation, "$TiH_2=Ti+H_2$", and carburization, "Ti + C = TiC", occur simultaneously over the reaction temperature range. The unreacted graphite content (free carbon) in each product is precisely measured by acid dissolution and by the filtering method, and it is possible to conclude that the maximal carbon stoichiometry of $TiC_{0.94}$ is accomplished at $1200^{\circ}C$.
Keywords
Titanium hydride; Titanium Carbide; Carburization;
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  • Reference
1 A. T. Santhanam: The Chemistry of Transition Metal Carbides and Nitrides, S.T. Oyama(Ed.), Blackle Academic & Professional, UK(1996) 28.
2 E. K. Storms: The Refractory Carbides, Academic Press, UK(1967) 9.
3 F. H. Sam: Advances in Powder Metallurgy, I. Chang and Y. ZhaO(Ed.), Woodhead Publishing, USA (2013) 202.
4 P. Ettmayer, H. Kolaska, W. Lengauer and K. Dreyer: Int. J. Refract. Met. Hard Mater. 13 (1995) 343.   DOI
5 M. B. Rahaei, R. Y. Rad, A. Kazemzadeh and T. Ebadzadeh: Powder Technol., 217 (2012) 369.   DOI
6 C. R. Rambo, J. Cao, O. Rusina and H. Sieber: Carbon, 43 (2005) 1174.   DOI
7 W. Sena, H. Sun, B. Yang, B. Xu, W. Ma, D. Liu and Y. Dai: Int. J. Refract. Met. Hard Mater., 28 (2010) 628.   DOI
8 D. W. Lee, S. Alexandrovskii and B. K. Kim: Mater. Chem. Phys., 88 (2004) 23.   DOI
9 W. Sen, B.Q. Xu, B. Yang, H.Y. Sun, J.X. Song, H.L. Wan and Y.N. Dai: T. Nonferr. Metal. Soc., 21 (2011) 185.   DOI
10 T. Morimoto and K. Miura: Langmuir 1(1985) 658.   DOI