Morphology and carbon content of WC-6%Co nanosized composite powders prepared using glucose as carbon source

被引：19

作者：

Guo, Sheng-da ^{[1
]}

Bao, Rui ^{[1
]}

Yang, Ping ^{[1
]}

Liu, Liang ^{[1
]}

Yi, Jian-hong ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2018年 / 28卷 / 04期

基金：

中国国家自然科学基金;

关键词：

WC-6%Co composite powder; carbon source; heat-treatment parameter; carbon content; microstructure characteristic; CO NANOCOMPOSITE POWDERS; WC-CO; CEMENTED CARBIDES; MECHANICAL-PROPERTIES; VC; MICROSTRUCTURE; TAC;

D O I：

10.1016/S1003-6326(18)64704-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Pure WC-6%Co nanosized composite powders were synthesized via a low-temperature method. The effects of carbon source on microstructure characteristic of composite powders were investigated, and the effects of heat-treatment parameter on carbon content of composite powders were also discussed. The results of SEM and XRD revealed that the carbon decomposing from glucose was more active than carbon black. Therefore, WC-Co nanosized composite powders could be synthesized at 900 degrees C for 1 h under a hydrogen atmosphere. The individual WC grains were bonded together into a long strip under the action of cobalt. The results of carbon analysis revealed that the total carbon content decreased with the increase of the temperature in the range of 800-1000 degrees C. Moreover, the total carbon content and the compounded carbon increased with the increase of the flow rate of H-2 in the range of 1.1-1.9 m(3)/h.

引用

页码：722 / 728

页数：7