Chemical vapor synthesis (CVS) of tungsten nanopowder in a thermal plasma reactor

被引：75
|
作者：
Ryu, Taegong [1 ]
Sohn, H. Y. [1 ]
Hwang, Kyu Sup [1 ]
Fang, Zhigang Z. [1 ]
机构：
[1] Univ Utah, Dept Met Engn, Salt Lake City, UT 84112 USA
来源：
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2009年 / 27卷 / 01期
关键词：
Tungsten; Chemical vapor synthesis; Plasma; Nanosized powder; Ammonium paratungstate; POWDERS; REDUCTION; NANOPARTICLES; PARTICLES;
D O I：
10.1016/j.ijrmhm.2008.06.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanosized tungsten powder was synthesized by a thermal plasma process using ammonium paratungstate (APT) as the precursor. The injected precursor was vaporized in the plasma flame and the subsequent reduction of the vaporized precursor produced nanosized tungsten powder. The effects of H-2 concentration, plasma torch power, and the flow rate of plasma gas on the product properties were investigated and particle size was determined. From the results, nanosized tungsten powder of particle size less than 50 nm was obtained by the thermal plasma process. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：149 / 154
页数：6
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