火花等离子烧结技术制备的WC/Co纳米硬质合金  

WC/Co nano hardmetal materials made by spark plasma sintering technology

作　　者：谭兴龙[1] 邱绍宇[2] 何文艳[1] 雷代富[1] 任大鹏[1] 

机构地区：[1]中国工程物理研究院,绵阳621900 [2]中国核动力研究院,成都610041

出　　处：《中国有色金属学报》2004年第F01期276-279,共4页The Chinese Journal of Nonferrous Metals

摘　　要：研究了火花等离子烧结工艺与YG10、YG12两种纳米硬质合金性能的关系。然后采用火花等离子烧结技术制备了硬质合金功能梯度材料,该材料由纳米WC/10%Co、纳米WC/12%Co、微米WC/15%Co混合粉以及不锈钢圆片烧结而成。显微硬度压痕显示该材料各层间的应力较小。The density, hardness and fracture toughness of YG10, YG12 nano hardmetals prepared by different spark plasma sintering processes were measured. A functionally graded material(FGM) was also produced by spark plasma sintering technology(SPS), and sintering powders of nano WC/10%Co, nano WC/12%Co, micro WC/15%Co and disk of stainless steel. The SPS processing led to FGM free of internal stress, which was measured using Vickers indentations.

关 键 词：火花等离子烧结 功能梯度材料 WC/CO 纳米硬质合金 制备 

分 类 号：TF125.3[冶金工程—粉末冶金]