Molecular dynamics simulation for the influence of incident angles of energetic carbon atoms on the structure and properties of diamond-like carbon films
Molecular dynamics simulation for the influence of incident angles of energetic carbon atoms on the structure and properties of diamond-like carbon films
复制标题
高能碳原子入射角对类金刚石碳膜结构和性能影响的分子动力学模拟
DOI：
10.1016/j.tsf.2013.12.012
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发表时间：
2014-02-03
期刊：
影响因子：
2.1
通讯作者：
Wang, Aiying
中科院分区：
文献类型：
--
作者：
Li, Xiaowei;Ke, Peiling;Wang, Aiying
The influence of incident angles of energetic carbon atoms (0-60 degrees) on the structure and properties of diamondlike carbon (DLC) films was investigated by the molecular dynamics simulation using a Tersoff interatomic potential. The present simulation revealed that as the incident angles increased from 0 to 60 degrees, the surface roughness of DLC films increased and the more porous structure was generated. Along the growth direction of DLC films, the whole system could be divided into four regions including substrate region, transition region, stable region and surface region except the case at the incident angle of 60 degrees. When the incident angle was 45 degrees, the residual stress was significantly reduced by 12% with little deterioration of mechanical behavior. The further structure analysis using both the bond angles and bond length distributions indicated that the compressive stress reduction mainly resulted from the relaxation of highly distorted C-C bond length. (C) 2013 Elsevier B.V. All rights reserved.
