稀土元素镧在金刚石工具胎体材料中的作用机理研究  

Effects of Lanthanum on Diamond Tool Matrix

作　　者：宋月清[1] 夏志华[1] 甘长炎[1] 袁冠森[1] 

机构地区：[1]北京有色金属研究总院

出　　处：《稀有金属》1998年第1期39-42,共4页Chinese Journal of Rare Metals

摘　　要：研究了稀土元素镧对包镶金刚石颗粒的胎体机械性能、磨损性能及其对金刚石粘结性能的影响，确定了以ＬａＮｉ５合金粉末的形式添加稀土镧的方法，利用扫描电子显微镜分析了添加稀土镧前后胎体的组织结构变化、合金胎体中的元素分布情况以及胎体与金刚石之间的界面形态。The effects of rare earth element, La, on the mechanical properties (such as wearing property) of diamond mounted martrix material and adhensive strength of diamond were studied. La was added in the form of LaNi 5 alloy powder. The microstructure change of matrix material, the distribution of elements in matrix and the interface of matrix diamond were analysed by using SEM.

关 键 词：金刚石工具 稀土元素 胎体材料 镧 热压烧结 

分 类 号：TF125.34[冶金工程—粉末冶金]