摘要
采用Ti和金刚石粉体,通过熔盐处理法在金刚石表面反应形成了Ti和TiC涂层,利用XRD、SEM和EDS对涂层的化学组成、相组成和微观结构进行了分析和表征。结果表明:当选用金刚石粒度为170/200目时,在600~700℃,金刚石表面会形成致密的Ti涂层。在800~1000℃,得到Ti-TiC复合涂层,大部分TiC晶粒大小约0.8μm,个别的TiC晶粒长大至7~11μm;在1100℃,形成TiC涂层,TiC晶粒大小约1.5μm。当金刚石的粒度降至5μm,在1100℃热处理的产物中会形成大量含微量Cl元素的TiC纳米层状组织与虾骨状组织。
Ti and TiC coating on the surface of diamond was obtained by salt molten heat treatment from Ti/Si/Diamond and Ti/Al/Diamond. Chemical composition,phase composition and microstructure were analyzed and characterized. The results show that dense Ti coating was formed on the surface of diamond at 600-700 ℃when diamond size was used as 170/200 mesh. Ti-TiC complex coating was obtained at 800-1000 ℃. Large amounts of TiC grains had a size of about 0. 8 μm. Several TiC grains developed 7-11 μm. TiC coating was formed at 1100 ℃. TiC grains had a size of about 1. 5 μm. When diamond size decreases to 5 μm,amounts of TiC lamellar and shrimp bone TiC grains contained tiny Cl element were formed at 1100 ℃.
作者
梁宝岩
韩丹辉
张旺玺
刘英
王艳芝
杨黎
张宗超
LIANG Bao-yan;HAN Dan-hui;ZHANG Wang-xi;LIU Ying;WANG Yan-zhi;YANG Li;ZHANG Zong-chao(Materials and Chemical Engineering School,Zhongyuan University of Technology,National and Local Joint Laboratory of Engineering of Diamond Technology,Textile Institute,Zhongyuan University of Technology,Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Isharp Abrasives Tools Science Institute,Zhengzhou 450006,Chin)
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2018年第4期836-841,共6页
Journal of Synthetic Crystals
基金
河南省高等学校重点科研项目(17A430034)
河南省高校创新团队项目(15IRTSTHN004)
国家国际科技合作专项项目(2015DFR50620)
关键词
熔盐处理
金刚石
涂层
salt molten treatment
diamond
coating
