Spring-mass model for exploring normal strain of multilayer diamond coating

摘要：

　　A modified spring-mass model was proposed to estimate the mechanical performances of multilayer diamond coating by an analysis of normal strain.Six types of diamond coatings (microcrystalline diamond (MCD), nanocrystalline diamond (NCD), MCD/NCD, NCD/MCD,MCD/NCD/NCD, and NCD/MCD/NCD) were studied.The results show that every substrate has the same normal strain curve, and MCD and NCD coatings also present the same trend.The frequency of normal strain is equal to that of external force.The normal strain is sensitive to the frequency of external force.Two rapid decrease in the normal strain are found at ~2950 and ~4250Hz.The results indicated that the composite Youngs modulus calculated from spring-mass model is in agreement with the theoretical results.Multilayer diamond coating has a combining advantage with high surface hardness and superior internal elasticity.

关键词： Diamond Coating Stress/strain relationship

作者: Naichao Chen Yingchao Chen Jun Ai Chen Li Ping He

作者单位: School Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai,200090, China

会议类型: 国际会议

会议名称: The 13th China-Japan International Conference on Ultra-Precision Machining Process (CJUMP 2017) (第十三届中日超精密加工国际会议)

会议地点: 上海

会议语种:英文

页码: 307-310

在线出版日期: 2017-11-19（万方平台首次上网日期，不代表论文的发表时间）