典型文献
Insights on high temperature friction mechanism of multilayer ta-C films
文献摘要:
In this work,the high temperature friction mechanism of the tetrahedral amorphous carbon(ta-C)film was elucidated.The multilayer ta-C film with alternating hard and soft sub-layers exhibited a low fric-tion coefficient of 0.14 at 400℃before a sudden failure occurred at 4600 cycles.The wear failure was at-tributed to the gradual consumption of the ta-C film at the contact region.The design of a hard or soft top layer effectively regulated the high temperature friction properties of the multilayer ta-C.The addition of a hard top layer contributed to a low friction coefficient(0.11)and a minor wear rate(4.0×10-7 mm3/(N m)),while a soft top layer deteriorated the lubrication effect.It was proposed that the passivation of dan-gling bonds at the sliding interface dominated the low-friction mechanism of the ta-C film at high tem-perature,while the friction induced graphitization and the formation of sp2-rich carbonaceous transfer layer triggered C-C inter-film bonding,resulting in serious adhesion force and lubrication failure.More-over,the multilayer ta-C film with hard top layer obtained excellent friction performance within 500℃,while the high temperature induced oxidation and volatilization of carbon atoms led to the wear failure at 600℃.
文献关键词:
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作者姓名:
Jing Wei;Peng Guo;Hao Li;Peiling Ke;Aiying Wang
作者机构:
Key Laboratory of Marine Materials and Related Technologies,Zhejiang Key Laboratory of Marine Materials and Protective Technologies,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Ningbo Institute of Industrial Technology,Ningbo 315201,China
文献出处:
引用格式:
[1]Jing Wei;Peng Guo;Hao Li;Peiling Ke;Aiying Wang-.Insights on high temperature friction mechanism of multilayer ta-C films)[J].材料科学技术(英文版),2022(02):29-37
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Insights,high,temperature,friction,mechanism,multilayer,films,this,work,tetrahedral,amorphous,was,elucidated,alternating,hard,soft,sub,layers,exhibited,low,coefficient,before,sudden,failure,occurred,cycles,wear,gradual,consumption,contact,region,design,top,effectively,regulated,properties,addition,contributed,minor,mm3,while,deteriorated,lubrication,It,proposed,that,passivation,dan,gling,bonds,sliding,interface,dominated,induced,graphitization,formation,sp2,rich,carbonaceous,transfer,triggered,bonding,resulting,serious,adhesion,force,More,over,obtained,excellent,performance,within,oxidation,volatilization,atoms,led
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0.459646
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