Superlubricity on the nanometer scale

查看全文 作　　者：Ernst [1]MEYER;Enrico [2]GNECCO

机构地区：[1]Department of Physics,University of Basel,Klingelbergstr.82,4056 Basel,Switzerland;[2]IMDEA Nanociencia,Campus Universitario de Cantoblanco,Calle Faraday 9,28049 Madrid,Spain

出　　处：《Friction》索引2014年第2卷第2期,共8页

基　　金：E.M.acknowledges financial support by the Swiss National Science Foundation(SNF);the Commission for Technology and Innovation(CTI),COST Action MP1303 and the Swiss Nanoscience Institute(SNI).;E.G.acknowledges the Spanish Ministry of Economy and Competitiveness(MINECO)Project MAT2012-26312. 摘　　要：The transition from atomic stick-slip to continuous sliding has been observed in a number of ways.If extended contacts are moved in different directions,so-called structural lubricity is observed when the two surface lattices are non-matching.Alternatively,a“superlubric”state of motion can be achieved if the normal force is reduced below a certain threshold,the temperature is increased,or the contact is actuated mechanically.These processes have been partially demonstrated using atomic force microscopy,and they can be theoretically understood by proper modifications of the Prandtl−Tomlinson model. 关键词：structural lubricity dynamic superlubricity atomic force microscopy friction force microscopy themolubricity Prandtl−Tomlinson model

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Superlubricity on the nanometer scale

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