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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.2c01786
|2 doi
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|a pubmed25n1153.xml
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|a (NLM)36109854
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|a DE-627
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|a eng
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| 100 |
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|a Wang, Yang
|e verfasserin
|4 aut
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|a Definition of Atomic-Scale Contact
|b What Dominates the Atomic-Scale Friction Behaviors?
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 27.09.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The definition of atomic-scale contact is a very ambiguous issue owing to the discrete atomic arrangement, which hinders the development of contact theory and nano-tribological techniques. In this work, we studied the atomic-scale contact area and their correlations with friction force based on three distinct contact definitions (interatomic distance, force, and interfacial chemical bonds) by performing large-scale atomistic simulations on a typical ball-on-disk contact model. In the simulations, the measured contact areas defined by interatomic distance, force, and interfacial chemical bonds (referred as to Adist, Aforce, and Abond, respectively) are not equivalent at all, while we interestingly clarify that only Adist is consistent with the one calculated by continuum Hertz contact mechanics, and moreover, only Abond is proportional to the friction force indicating that Abond is the dominant one for determining materials' frictional behaviors. The above fundamental insights into the atomic-scale contact problems are useful to deeply understand the origins of tribological phenomena and contribute to the further prediction of atomic-scale friction
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|a Journal Article
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|a Qin, Jie
|e verfasserin
|4 aut
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1 |
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|a Xu, Jingxiang
|e verfasserin
|4 aut
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| 700 |
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|a Sun, Junhui
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Lei
|e verfasserin
|4 aut
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| 700 |
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|a Qian, Linmao
|e verfasserin
|4 aut
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| 700 |
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|a Kubo, Momoji
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 38(2022), 38 vom: 27. Sept., Seite 11699-11706
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnas
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| 773 |
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|g volume:38
|g year:2022
|g number:38
|g day:27
|g month:09
|g pages:11699-11706
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|u http://dx.doi.org/10.1021/acs.langmuir.2c01786
|3 Volltext
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