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

Abstract:

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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 et al., "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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Price:

$35.00

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