Paper Title:
Synthesis of Nanocrystalline (W, Ti)C from Respective Elemental Powders by Mechanical Alloying and Spark Plasma Sintering
  Abstract

The possibility of synthesizing nanocrystalline (W, Ti)C is investigated by spark plasma sintering of mechanically alloyed elemental mixed powders of W, Ti and C. The results show that wet-milling generates WxTi1-x instead of directly forming (W, Ti)C, and makes the graphite C transform into amorphous phase surrounding the formed WxTi1-x. Meanwhile, the grain size of the 70 h milled elemental mixed powders reaches about 50 nm under the wet-milling condition. Subsequently, nanocrystalline (W, Ti)C is successfully synthesized by spark plasma sintering of the 70 h milled elemental mixed powders. The formation of (W, Ti)C phase by SPS from the WxTi1-x and amorphous C generated by MA is simply explained based on our proposed model.

  Info
Periodical
Advanced Materials Research (Volumes 306-307)
Edited by
Shiquan Liu and Min Zuo
Pages
1728-1734
DOI
10.4028/www.scientific.net/AMR.306-307.1728
Citation
J. H. Liang, C. Yang, X. Q. Li, S. G. Qu, Y. Y. Li, "Synthesis of Nanocrystalline (W, Ti)C from Respective Elemental Powders by Mechanical Alloying and Spark Plasma Sintering", Advanced Materials Research, Vols. 306-307, pp. 1728-1734, 2011
Online since
August 2011
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$32.00
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