Research on Binderless Tungsten Carbide Prepared by Spark Plasma Sintering

被引：7
|
作者：
Li, Xiaoqiang [1 ]
Xiao, Zhangyi [1 ]
Yang, Chao [1 ]
Qu, Shengguan [1 ]
机构：
[1] S China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Guangdong, Peoples R China
来源：
ADVANCES IN ENGINEERING DESIGN AND OPTIMIZATION, PTS 1 AND 2 | 2011年 / 37-38卷
关键词：
Pure WC powders; Particle size; Spark plasma sintering; GROWTH;
D O I：
10.4028/www.scientific.net/AMM.37-38.980
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Commerical pure WC powders of 0.2, 0.4, 0.8, 2.0 and 3.0 mu m in diameter were sintered by spark plasma sintering process at 1300 degrees C, respectively. By analyzing the XRD patterns of the initial powders and the microstructure of the sintered samples, it is affirmed that the powders with an average size of 0.8 pm exhibits the best activity and sintering property. To optimize sintering temperature, the sintering of 0.8 mu m powders was carried out at 1200-1700 degrees C. The specimen sintered at 1300 degrees C has a density of 15.49 g/cm(3) and an average grain size of about 0.7 mu m, and exhibits the most excellent mechanical properties. The corresponding Vickers hardness and transverse rupture strength are 2469 HV and 1656 MPa, respectively.
引用
收藏
页码：980 / 984
页数：5
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