Nanometer Synthetic MaterialsNo Access

THE PREPARATION OF ULTRAFINE TUNGSTEN CARBIDE NANOPARTICLES BY DC ARC DISCHARGE PLASMA PROCESS

S. Q. ZHAO

Modern Experiment and Technology Center, Anhui University, 3 Feixi Road, Hefei 230039, China

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S. W. JIN

School of Physics and Material Science, Anhui University, 3 Feixi Road, Hefei 230039, China

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, and

Y. X. WANG

Department of Chemical & Materials Engineering, The University of Auckland, PB 92019, Auckland 1142, New Zealand

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https://doi.org/10.1142/S0217984913410030Cited by:4 (Source: Crossref)

Abstract

Tungsten carbide nanoparticles were synthesized successfully by DC arc discharge plasma process with 23 A discharge current at atmospheric pressure, in which tungsten positive electrode reacted with carbon black produced from the benzene cracking. The XRD results indicate that the samples consist of carbon black, WC and W₂ C. The TEM micrographs show that the tungsten carbide particles range from 3 to 7 nm in size, and are composed of WC and W₂C.

Keywords:

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