No 4, Vol. 5, 2004 
 

SYNTHESIS OF PRECURSOR-DERIVED TiC-Ni BASED NANOCOMPOSITES BY DIRECT REDUCTION & CARBURIZATION PROCESSING

Ji-ren Xie1, Xing-long Duan1, Gang-qin Shao1,2, Zhong-lai Yi1, Run-zhang Yuan1 and Jing-kun Guo1,2

1 State Key Laboratory of Advanced Technology for Materials Synthesis & Processing,
Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, P. R. China
2 Shanghai Institute of Ceramics, Chinese Academy of Science, 1295 Dingxi Road,
Shanghai 200050, P.R. China

Abstract

Precursor-derived TiC-Ni and TiC-Cr3C2-Ni nanocomposites were synthesized by direct reduction and carburization processing. This improved carbothermal synthesis technology has proven very versatile as a wider range of compositions can be produced. Their phase structure, morphological feature and particle size were characterized by XRD and SEM. Results show that the interfacial bonding between TiC and Ni was found to be of a good quality. The TiC reinforcement was in situ formed instead of being added to the matrix. The formation mechanism of the TiC-Ni and TiC-Cr3C2-Ni nanocomposites was discussed.

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