金刚石与磨料磨具工程2012，Vol.32Issue(4)：27-30,36,5.
热处理对金刚石颗粒表面钛包覆层组织与性能的影响
Effect of heat treatment on the structure and properties of Ti coating deposited on the surface of diamond grains
摘要
Abstract
Ti coating was prepared on the surface of diamond grains by the method of vacuum evaporation, and then Ti-coated diamond grains were heated at different temperature respectively. The surface morphology, composition and phase of the coating were detected by SEM, FDS and XRD, and the static compressive strength of the diamonds were tested by the static compressive strength tester for single diamond grain. The results showed that the diamond grains were carbonized at the temperature of 880X1, and Ti coating could react with diamond at the interface. Puhctiform TiC coating was generated at the temperature of 880℃ , and with the time going on,it grew up into a snowflake shape. However, when the temperature reached 920 ℃, the Ti coating became gradually oxidi2ed to be TiO; TiC coating can improve the thermal stability and static compressive strength of the diamond grains. Compared with uncoated diamond, the compressive strength of Ti-coated diamonds was increased by 14%.关键词
金刚石/Ti镀层/界面反应/静压强度Key words
diamond / Ti coating/ interface reaction/ static compressive strength分类
化学化工引用本文复制引用
罗雯,揭晓华,蒙云开,尹育航,陶洪亮,柯明月,魏菊..热处理对金刚石颗粒表面钛包覆层组织与性能的影响[J].金刚石与磨料磨具工程,2012,32(4):27-30,36,5.基金项目
粤港招标项目(2011243) （2011243）
广东省教育部产学研结合项目(2011B090400178). （2011B090400178）
