摘要
通过多种分析手段对所研制的金刚石 -立方氮化硼 (cBN) -硬质合金超硬复合柱齿进行了深入的研究分析 ,得出了由于B的烧结促进和强化作用、Ni-P的活化烧结作用以及cBN加入 ,大大提高了超硬复合柱齿的性能 ,同时还分析指出 ,在金刚石与基体合金之间存在过渡区 ,该过渡区能有效地保护金刚石免受高温损伤 ,另外 ,该过渡区还大大增强了基体与金刚石之间的结合强度 .
This paper presents a new type of composite button composed of diamond and cubic boron nitride_enhanced tungsten carbide. The working properties such as hardness, bending strength, and abrasion ratio of this type of composite button increases by a large margin because of the integration of the boron_sintering promotion and enhancement, the Ni_P activation sintering, and the addition of cubic boron nitride. In addition, a transitional zone between diamond particles and matrix alloy can effectively prevent the carbon atoms of the diamond surface from diffusion, a key element to protect diamond from deformation and damage at a high temperature. Furthermore, this transitional zone increases greatly the bonding strength between diamond and matrix alloy.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
2000年第3期329-332,共4页
Earth Science-Journal of China University of Geosciences
基金
国土资源部"九五"重点科技攻关项目!(No .95 0 5 40 2-4 )
关键词
金刚石
立方氮化硼
硬质合金
复合柱齿
钻头
diamond
cubic boron nitride (cBN)
tungsten carbide
composite button
activation sintering
mechanic analysis.
