Production of nanostructured WC-Co powder by ball milling

被引:67
|
作者
Enayati, M. H. [1 ]
Aryanpour, G. R. [1 ]
Ebnonnasir, A. [1 ]
机构
[1] Isfahan Univ Technol, Dept Mat Engn, Esfahan 8415483111, Iran
来源
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2009年 / 27卷 / 01期
关键词
WC-Co; Nanocrystalline; Ball milling; Mechanical alloying; MECHANICAL ATTRITION; THERMODYNAMIC PROPERTIES; NANOCOMPOSITE; EVOLUTION; COATINGS;
D O I
10.1016/j.ijrmhm.2008.06.005
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Formation of nanostructured WC compound by ball milling process was investigated through two different routes. First route involved the ball milling of preformed WC-17 wt.% Co powder while in second route the mechanical alloying of W-Co-C powder mixture was used. The results showed that ball milling of WC-17 wt.% Co readily led to nanocrystalline WC particles with a crystallite size of 15 mn. Annealing of this structure however caused a transition from WC phase to undesirable Co6W6C phase. Mechanical alloying of W-Co-C powder mixture did not yield WC phase whereas it was possible to produce nanocrystalline WC phase with a crystallite size of about 10 nm by mechanical alloying of W-C powder mixture. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:159 / 163
页数:5
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