车用纳米润滑油添加剂热力学性质模拟分析  

A Study of Thermodynamic Properties of Nanocrystalline Additives to Lubricating Oil for Vehicles

作　　者：刘芳[1] 熊锐[1] 唐智[1] 

机构地区：[1]广东工业大学机电工程学院,广东广州510006

出　　处：《广东工业大学学报》2010年第1期39-41,共3页Journal of Guangdong University of Technology

摘　　要：模拟了多个不同粒径CuN纳米粒子升温熔化过程.模拟结果及分析表明,纳米粒子熔点随其直径单调增加,并逐步向大块晶体过渡;纳米颗粒抗磨减摩机理不同于传统的油性剂和极压剂,正是通过改变摩擦方式、表面修复等来减小摩擦磨损.It studies the temperature rise process of Cu nanoparticles. The melting point of Cu nanoparticles is lower than that of bulk, and it decreases with the decreasing size of nanoparticles. The premehing phenomenon was observed in different-size nanoparticles. The mechanism is different from that of traditional antiwear additives. The result indicates that the mode of friction is changed or a thin film is formed.

关 键 词：纳米 润滑油 分子动力学模拟 热力学性质 摩擦磨损 

分 类 号：TK414.1[动力工程及工程热物理—动力机械及工程]