Effects of Phosphorus Additions on Microwave Sintering Properties of Uitrafine WC-10Co Cemented Carbides

作     者：全峰 周建 

作者机构：State Key Lab of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology State Key Lab of Advanced Technology for Materials Synthesis and ProcessingWohan University of Technology 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2007年第22卷第4期

页      面：725-727页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：the National Key Technology R&D Program of MOST,China(2003BA328C) the National Natural Science Foundation of China(50472043) Natural Science Foundation of Hubei Province(2006ABA312,2006ABA316) 

主　　题：microwave sintering cemented carbides ultrafine hardmetals phosphorus grain growth inhibitor 

摘      要：Using the microwave sintering technology, the effects of phosphorus （P） additions on the microstructure and properties of the ultrafine WC-10Co alloys were investigated. The experimental results show that with only 0.3wt% P additions, full density WC-10Co cermets were obtained at temperature of 1250℃, which is 70 ℃ lower than that of the undoped counterparts. Lower sintering temperature can result in finer WC grain growth; therefore, the P-doped WC-10Co alloys exhibited higher hardness than the undoped ones. But at the same time, P doping could lead to sacrifice of fracture toughness ofWC-10Co cemented carbides.