Paper Title:
Properties of Carbide-Metal Cermets Prepared from Composite Powders by Direct Reduction and Carburization Process
  Abstract

The transition-metal carbide cemented by metal has excellent combined properties. In this study, cermets were prepared by vacuum sintering from carbide-metal composite powders. The transition- metal oxides (Cr2O3, MoO3, V2O5, Nb2O5 and TiO2), cementing-metal oxides (Co3O4 and NiO), and carbon black were used as raw materials to pre-synthesize composite powders such as Cr3C2-Co, Mo2C-Co, VC-Co, NbC-Co and TiC-Ni, by a direct reduction and carburization process in vacuum. Results show that the participation of Co3O4 and NiO as well as the vacuum circumstance were greatly propitious to the carburization of transition-metal oxides into carbides. The carbothermal condition was greatly improved by the direct reduction and carburization process.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
1099-1103
DOI
10.4028/www.scientific.net/KEM.368-372.1099
Citation
L. Yan, G. Q. Shao, Z. Xiong, X. L. Shi, X. L. Duan, T.G. Wang, "Properties of Carbide-Metal Cermets Prepared from Composite Powders by Direct Reduction and Carburization Process", Key Engineering Materials, Vols. 368-372, pp. 1099-1103, 2008
Online since
February 2008
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