超细/纳米WC-Co复合粉末制备技术的研究现状  

Current Research of Preparation Technologies for Ultrafine/Nano WC-Co Composite Powders

作　　者：郭圣达[1,2] 羊建高[1,2,3] 陈颢[2] 朱二涛[1] 吕健[1] 邓军旺 

机构地区：[1]江西理工大学工程研究院,江西赣州341000 [2]钨资源高效开发及应用技术教育部工程研究中心,江西赣州341000 [3]湖南顶立科技有限公司,湖南长沙410111

出　　处：《稀有金属与硬质合金》2014年第4期27-30,共4页Rare Metals and Cemented Carbides

基　　金：国家国际合作专项资助项目(2011DFR50970);国家863计划项目(2012AA061902);国家自然科学基金项目(51174101);湖南省科技重大专项资助项目(2012FJ1009)

摘　　要：介绍了超细/纳米WC-Co复合粉末的主要制备方法:液相还原法、氧化-还原法、溶胶-凝胶法、共沉淀法和喷雾转化法,并结合笔者研究成果详细阐述了喷雾转化法的研究现状,指出该方法具有流程短、粉末组元均匀化及晶粒纳米化等优点,但在粒度及形貌控制、组元迁移和低温原位还原碳化三个方面还需更加深入的理论研究。The main preparation technologies are introduced for ultrafine/nano WC-Co composite powders, such as liquid phase reduction method,oxidation-reduction method, sol-gel method, coprecipitation method and spray conversion method. The current research on spray conversion is expounded based on the research results of the authors, and its advantages are pointed out, such as short process, uniform distribution of powder components and nano-crystallization. However, some deeper theoretical researches are to be conducted ina spects of control of particle size and morphology,component migration and in-situ low-temperature reduction carbonization.

关 键 词：超细 纳米WC—Co复合粉末 制备方法 喷雾转化法 研究现状 

分 类 号：TB383[一般工业技术—材料科学与工程]