Unexpected friction behaviours due to capillary and adhesion effects

Abstract In this present work, we show that pouring water into the interface of SiC sliding against the same SiC material makes the friction coefficient far exceed that governing initial dry friction, and a subsequent load increase causes a dramatic abnormal friction force decrease. With the load fu...

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Autores principales:	Fei Guo, Yu Tian, Ying Liu, Yuming Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c0a28389011b4c08b614da550e1f9687
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spelling	oai:doaj.org-article:c0a28389011b4c08b614da550e1f96872021-12-02T15:05:45ZUnexpected friction behaviours due to capillary and adhesion effects10.1038/s41598-017-00238-02045-2322https://doaj.org/article/c0a28389011b4c08b614da550e1f96872017-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00238-0https://doaj.org/toc/2045-2322Abstract In this present work, we show that pouring water into the interface of SiC sliding against the same SiC material makes the friction coefficient far exceed that governing initial dry friction, and a subsequent load increase causes a dramatic abnormal friction force decrease. With the load further increasing to a critical value, friction force sharply increases again. The small amounts of water in the interface generates a large capillary force, the capillary bridges break to cause micro-separation of interface increase to allow bulk water to enter the friction interface, and a squeezing out of the water film to form a strong adhesion force between SiC-SiC materials, are considered to be responsible for the three stages, respectively.Fei GuoYu TianYing LiuYuming WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fei Guo Yu Tian Ying Liu Yuming Wang Unexpected friction behaviours due to capillary and adhesion effects
description	Abstract In this present work, we show that pouring water into the interface of SiC sliding against the same SiC material makes the friction coefficient far exceed that governing initial dry friction, and a subsequent load increase causes a dramatic abnormal friction force decrease. With the load further increasing to a critical value, friction force sharply increases again. The small amounts of water in the interface generates a large capillary force, the capillary bridges break to cause micro-separation of interface increase to allow bulk water to enter the friction interface, and a squeezing out of the water film to form a strong adhesion force between SiC-SiC materials, are considered to be responsible for the three stages, respectively.
format	article
author	Fei Guo Yu Tian Ying Liu Yuming Wang
author_facet	Fei Guo Yu Tian Ying Liu Yuming Wang
author_sort	Fei Guo
title	Unexpected friction behaviours due to capillary and adhesion effects
title_short	Unexpected friction behaviours due to capillary and adhesion effects
title_full	Unexpected friction behaviours due to capillary and adhesion effects
title_fullStr	Unexpected friction behaviours due to capillary and adhesion effects
title_full_unstemmed	Unexpected friction behaviours due to capillary and adhesion effects
title_sort	unexpected friction behaviours due to capillary and adhesion effects
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c0a28389011b4c08b614da550e1f9687
work_keys_str_mv	AT feiguo unexpectedfrictionbehavioursduetocapillaryandadhesioneffects AT yutian unexpectedfrictionbehavioursduetocapillaryandadhesioneffects AT yingliu unexpectedfrictionbehavioursduetocapillaryandadhesioneffects AT yumingwang unexpectedfrictionbehavioursduetocapillaryandadhesioneffects
_version_	1718388731007729664

Unexpected friction behaviours due to capillary and adhesion effects

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