Plasma Synthesis of Tungsten Carbide Nanopowder from Tungsten Hexachloride

被引:0
作者
Ryu, Taegong [1 ]
Sohn, H. Y. [1 ]
Hwang, Kyu Sup [1 ]
Fang, Zhigang Z. [1 ]
Kim, Young-Ugk [1 ]
机构
[1] Univ Utah, Dept Met Engn, Salt Lake City, UT 84112 USA
关键词
Nanopowder; Chemical vapor synthesis; Plasma; Tungsten carbide;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Nanosized tungsten carbide powder was prepared by a thermal plasma process using tungsten hexachloride (WCl(6)) as the precursor. The effects of plasma torch power and the molar ratio of reactant gases on the product composition and grain size were investigated. The produced tungsten carbide powder, which mainly consisted of the WC(1-x) phase, was heated in a hydrogen atmosphere to produce fully carburized WC phase. Finally, WC powder with particle size less than 100 nm was obtained.
引用
收藏
页码:91 / 96
页数:6
相关论文
共 22 条
[1]   Synthesis and processing of nanostructured WC-Co materials [J].
Ban, ZG ;
Shaw, LL .
JOURNAL OF MATERIALS SCIENCE, 2002, 37 (16) :3397-3403
[2]  
Chang W., 1994, Nanostructured Materials, V4, P345, DOI 10.1016/0965-9773(94)90144-9
[3]   Synthesis of nanometer alumina particles by plasma transferred arc alternative [J].
Chazelas, C. ;
Coudert, J. F. ;
Jarrige, J. ;
Fauchais, P. .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (2-3) :947-950
[4]  
Cullity B., 1978, ELEMENTS XRAY DIFFRA
[5]   An experimental study of the sintering of nanocrystalline WC-Co powders [J].
Fang, Z ;
Maheshwari, P ;
Wang, X ;
Sohn, HY ;
Griffo, A ;
Riley, R .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2005, 23 (4-6) :249-257
[6]  
Fitzsimmons M, 1995, SURF COAT TECH, V76, P250, DOI 10.1016/0257-8972(95)02568-5
[7]   LOW-TEMPERATURE CARBURIZATION OF HIGH-SURFACE-AREA TUNGSTEN POWDERS [J].
GAO, L ;
KEAR, BH .
NANOSTRUCTURED MATERIALS, 1995, 5 (05) :555-569
[8]   Rapid nitriding of pure iron by thermal plasma jet irradiation [J].
Gao, Yang ;
Guo, Xue-Ping ;
Wei, Ronghua .
SURFACE & COATINGS TECHNOLOGY, 2006, 201 (06) :2829-2834
[9]   TUNGSTEN CARBIDE POWDERS PRODUCED BY VAPOR-PHASE REACTION OF WCL6-CH4-H2 SYSTEM [J].
HOJO, J ;
OKU, T ;
KATO, A .
JOURNAL OF THE LESS-COMMON METALS, 1978, 59 (01) :85-95
[10]   Synthesis of nanosized tungsten carbide powder by the chemical vapor condensation process [J].
Kim, JC ;
Kim, BK .
SCRIPTA MATERIALIA, 2004, 50 (07) :969-972