Multiscale frictional behaviors of sp^(2) nanocrystallited carbon films with different ion irradiation densities

作     者：Zelong HU Xue FAN Cheng CHEN Zelong HU;Xue FAN;Cheng CHEN

作者机构：Institute of Nanosurface Science and EngineeringGuangdong Provincial Key Laboratory of Micro/Nano Optomechatronics EngineeringCollege of Mechatronics and Control EngineeringShenzhen UniversityShenzhen 518060China 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2021年第9卷第5期

页      面：1025-1037页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：The research work was supported by the National Natural Science Foundation of China(No.51975382) Natural Science Foundation of Guangdong Province(No.2018A030313908) Shenzhen Fundamental Research Free‐exploring Project(JCYJ20170817100822005) 

主　　题：macro‐tribology micro‐tribology sp^(2)nanocrystallite carbon film ion irradiation density 

摘      要：sp^(2) nanocrystallited carbon films with large nanocrystallite sizes,smooth surfaces,and relative high hardness were prepared with different ion irradiation densities regulated with the substrate magnetic coil current in an electron cyclotron resonance plasma sputtering *** multiscale frictional behaviors were investigated with macro pin‐on‐disk tribo‐tests and micro nanoscratch *** results revealed that,at an ion irradiation density of 16 mA/cm^(2),sp^(2) nanocrystallited carbon film exhibits the lowest friction coefficient and good wear resistant properties at both the macroscale and *** film sliding against a Si_(3)N_(4) ball under a contact pressure of 0.57 GPa exhibited a low friction coefficient of 0.09 and a long wear life at the ***,the film sliding against a diamond tip under a contact pressure of 4.9 GPa exhibited a stable low friction coefficient of 0.08 with a shallow scratch depth at the *** is suggested that sp^(2) nanocrystallites affect the frictional behaviors in the cases described *** the macroscale,the contact interface via the small real contact area and the sp^(2) nanocrystallited transfer layer dominated the frictional behavior,while the sp^(2) nanocrystallited structure in the film with low shear strength and high plastic resistivity,as well as the smooth surface morphology,decided the steady low nanoscratch properties at the *** findings expand multiscale tribological applications of sp^(2) nanocrystallited carbon films.