Effects of diamond magnetism on the microstructure of electrodeposited diamond composites
- 出版年：2007
- 作者：Lu Huiyang；Li Yundong；Huang ZhiweiGo；Huiyan
- 单位1：College of Mechanical and Electrical Engineering，Henan Agricultural University
- 语种：英文
- 作者关键词：diamond composites；electrodeposition；Ni-Comatrix；microstructure；diamond magnetism；electromagnetic interactio
- 起始页：13
- 总页数：6
- 经费资助：This work was supported by Henan Agricultural University，the Natural Science Foundation of Henan Province（0411051300）and the Project for Excellent University Teachers under the supervision of Henan Provincial Bureau of Education.
- 刊名：金刚石与磨料磨具工程
- 是否内版：否
- 刊频：双月刊
- 主管单位：郑州磨料磨具磨削研究所
- 主办单位：郑州磨料磨具磨削研究所
- 主编：王琴
- 地址：郑州市华山路121号
- 邮编：450007
- 电子信箱：diamond@371.net
- 期：6
- 期刊索取号：P666.06 836
- 数据库收录：全国中文核心期刊；中国科技论文统计源期刊；Ei收录用刊；CA收录用刊
- 核心期刊：全国中文核心期刊
摘要
Electroformed diamond tools have been used for many years in grinding and cutting fields while electrodeposited diamond composite coatings have been widely studied due to their desirable hardness，wear and corrosion resistance. This article reports the detrimental impact of diamond magnetism on the composites microstructure and gives explanations. Microstructure differences between composites that respectively，contained no-further-treated diamond，magnetism - strengthening treated diamond and magnetism weakeningtreated diamond were carefully observed. It is shown that diamond magnetization treatment drastically harms the composite microstructure（e . g. ，roughening the coating surface，coarsening the matrix grain，and more seriously，reducing the mechanical retention of diamond grains in the matrix）while demagnetization treatment does the opposite. All the observed facts could be explained by the electromagnetic interaction between magnetic fields produced by magnetic diamond grains and electric current（moving cations）during the electrodeposition process.