摘要
应用分子动力学模拟技术模拟刚性针尖在单晶铜表面的划擦过程,探讨在微观领域材料的摩擦磨损特性,为进一步探讨纳米摩擦模拟技术及微观领域材料特性奠定基础.模拟结果表明,在材料微观划擦机理中,针尖的摩擦阻力来自于基体表面位错的堆积,同时,位错在基体中的传播速度对摩擦阻力也有影响.
In this study,molecular dynamics has been applied to simulate nanoscale scratching between tip and surface of copper,and further to discuss the nanoscale frictional properties of material.Results of the simulation shows that the resistance of the tip comes from the accumulation of the dislocations on the surface,and affected by the transmission of dislocations.
出处
《应用科技》
CAS
2003年第10期49-51,共3页
Applied Science and Technology
基金
国家自然科学基金资助项目(50071014)
