石墨烯在Si3N4-GCr15摩擦副中的导热特性多尺度分析  

Study on Cooling Effect of Graphene on Si3N4-GCr15 Friction Pair

作　　者：张丽秀[1] 宋冬平 吴玉厚[2] 张营 ZHANG Lixiu;SONG Dongping;WU Yuhou;ZHANG Ying(Test and Analysis Center,Shenyang Jianzhu University,Shenyang 110168,China;Institute of Mechanical Engineering,Shenyang Jianzhu university,Shenyang 110168,China)

机构地区：[1]沈阳建筑大学测试与分析中心,沈阳110168 [2]沈阳建筑大学机械工程学院,沈阳110168

出　　处：《兵器装备工程学报》2020年第10期135-140,共6页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金项目(51375317,51675353)。

摘　　要：通过石墨烯传热与普通介质传热的对比实验,探究石墨烯在摩擦升温过程中的散热效果。通过分子动力学模拟研究石墨烯层数,堆叠方式及不同环境温度和环境压力对导热的影响。研究表明层数越少,堆叠越规整及在一定温度和压力下石墨烯在摩擦副中导热效果越好。This paper explored the heat dissipation effect of graphene in the process of friction heating by comparing the heat transfer between graphene and ordinary heat transfer.The effects of graphene layers,stacking methods and different ambient temperature and environmental pressure on heat conduction were studied by molecular dynamics simulation.The results show that the less the number of layers,the more regular the stacking and the better the thermal conductivity of graphene in the friction pair at a certain temperature and pressure.

关 键 词：石墨烯 热导率 非平衡态分子动力学 摩擦系数(COF) 

分 类 号：TH117.1[机械工程—机械设计及理论]