Synthesis of Nano-WC by High-energy Ball Milling

摘要：

　　Nanosized tungsten carbide (nano-WC) has been widely studied and applied in many industries as hard materials since it has good combination of high hardness and strength.Thermal mechanical alloying method consisting of high-energy ball milling and subsequent carbonization is a common synthetic approach to prepare nano-WC.In this paper,a special milling process has been reviewed,in which the dielectric barrier discharge plasma (DBDP) is introduced,for the preparation of nano-WC.The DBDP milling renders the W+C powders with specific flake-like structure possible owing to the cooperative effect of DBDP and mechanical milling.The obtained W+C powders are activated significantly within shortened milling period.Furthermore,pure nano-WC powders can be synthesized after subsequent carbonization at a significantly lowered temperature.DBDP milling is demonstrated to be an efficient way to synthesize nano-WC.

关键词： Thermal mechanical alloying High-energy ball milling Dielectric barrier discharge plasma Nano-WC

作者: Leyang Dai Shaofen Lin Jingfeng Chen Wenchun Wang

作者单位: Marine Engineering Institute, Jimei University, Xiamen 361021, China Key Lab of Materials Modification(Dalian University of Technology), Ministry of Education,Dalian 116

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 327-334

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）