Novel Method for Direct Observation of Friction Interfaces between SUJ2 Ball and Si3N4 Thin Film Using Scanning Electron Microscopy
In this study, a novel method was developed for in situ scanning electron microscopy (SEM) observations of friction interfaces, from a top view, using a Si3N4 thin film (SiN film), which has high electron transmission ability, and a microtribometer. Nanodiamond (ND) aggregates were adsorbed on the b...
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| Format: | Article |
| Language: | English |
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Japanese Society of Tribologists
2019-12-01
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| Series: | Tribology Online |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/trol/14/5/14_382/_pdf/-char/en |
| _version_ | 1818433510706249728 |
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| author | Hiroshi Kinoshita Naohiro Matsumoto |
| author_facet | Hiroshi Kinoshita Naohiro Matsumoto |
| author_sort | Hiroshi Kinoshita |
| collection | DOAJ |
| description | In this study, a novel method was developed for in situ scanning electron microscopy (SEM) observations of friction interfaces, from a top view, using a Si3N4 thin film (SiN film), which has high electron transmission ability, and a microtribometer. Nanodiamond (ND) aggregates were adsorbed on the back surface of the SiN film. A JIS-SUS304 ball, on which surface ND aggregates were adsorbed and tribofilms were already formed, contacted and slid with the back surface of the SiN film. An SEM electron beam went through the SiN film, and generated secondary electrons from the ball surface contacting the back surface of the SiN film and the adsorbed ND aggregates. Thereafter, the generated secondary electrons from the ball surface penetrated again through the SiN film and reached the SEM electron detector. In other words, the contacting ball surface and the adsorbed ND aggregates were successfully imaged through the SiN film. Energy dispersive X-ray spectroscopy analyses of the friction interfaces were also accomplished. Moreover, in situ SEM observations of friction interfaces under boundary lubrication, using poly-alpha olefin (PAO) oil with graphene oxide aggregates and lithium grease with MoS2 particles, were successfully accomplished. The PAO oil and lithium grease had electron transmission ability, and the friction interfaces were imaged by SEM as seen with an optical microscope. |
| first_indexed | 2024-12-14T16:22:15Z |
| format | Article |
| id | doaj.art-763f7f3d073a426c890340af644f8bfe |
| institution | Directory Open Access Journal |
| issn | 1881-2198 |
| language | English |
| last_indexed | 2024-12-14T16:22:15Z |
| publishDate | 2019-12-01 |
| publisher | Japanese Society of Tribologists |
| record_format | Article |
| series | Tribology Online |
| spelling | doaj.art-763f7f3d073a426c890340af644f8bfe2022-12-21T22:54:47ZengJapanese Society of TribologistsTribology Online1881-21982019-12-0114538238710.2474/trol.14.382trolNovel Method for Direct Observation of Friction Interfaces between SUJ2 Ball and Si3N4 Thin Film Using Scanning Electron MicroscopyHiroshi Kinoshita0Naohiro Matsumoto1Department of Mechanical Engineering, Graduate School of Engineering, University of HyogoDepartment of Mechanical Engineering, Graduate School of Engineering, University of HyogoIn this study, a novel method was developed for in situ scanning electron microscopy (SEM) observations of friction interfaces, from a top view, using a Si3N4 thin film (SiN film), which has high electron transmission ability, and a microtribometer. Nanodiamond (ND) aggregates were adsorbed on the back surface of the SiN film. A JIS-SUS304 ball, on which surface ND aggregates were adsorbed and tribofilms were already formed, contacted and slid with the back surface of the SiN film. An SEM electron beam went through the SiN film, and generated secondary electrons from the ball surface contacting the back surface of the SiN film and the adsorbed ND aggregates. Thereafter, the generated secondary electrons from the ball surface penetrated again through the SiN film and reached the SEM electron detector. In other words, the contacting ball surface and the adsorbed ND aggregates were successfully imaged through the SiN film. Energy dispersive X-ray spectroscopy analyses of the friction interfaces were also accomplished. Moreover, in situ SEM observations of friction interfaces under boundary lubrication, using poly-alpha olefin (PAO) oil with graphene oxide aggregates and lithium grease with MoS2 particles, were successfully accomplished. The PAO oil and lithium grease had electron transmission ability, and the friction interfaces were imaged by SEM as seen with an optical microscope.https://www.jstage.jst.go.jp/article/trol/14/5/14_382/_pdf/-char/enfriction interfacesboundary lubricationscanning electron microscopyin situ observationcontact surfaces |
| spellingShingle | Hiroshi Kinoshita Naohiro Matsumoto Novel Method for Direct Observation of Friction Interfaces between SUJ2 Ball and Si3N4 Thin Film Using Scanning Electron Microscopy Tribology Online friction interfaces boundary lubrication scanning electron microscopy in situ observation contact surfaces |
| title | Novel Method for Direct Observation of Friction Interfaces between SUJ2 Ball and Si3N4 Thin Film Using Scanning Electron Microscopy |
| title_full | Novel Method for Direct Observation of Friction Interfaces between SUJ2 Ball and Si3N4 Thin Film Using Scanning Electron Microscopy |
| title_fullStr | Novel Method for Direct Observation of Friction Interfaces between SUJ2 Ball and Si3N4 Thin Film Using Scanning Electron Microscopy |
| title_full_unstemmed | Novel Method for Direct Observation of Friction Interfaces between SUJ2 Ball and Si3N4 Thin Film Using Scanning Electron Microscopy |
| title_short | Novel Method for Direct Observation of Friction Interfaces between SUJ2 Ball and Si3N4 Thin Film Using Scanning Electron Microscopy |
| title_sort | novel method for direct observation of friction interfaces between suj2 ball and si3n4 thin film using scanning electron microscopy |
| topic | friction interfaces boundary lubrication scanning electron microscopy in situ observation contact surfaces |
| url | https://www.jstage.jst.go.jp/article/trol/14/5/14_382/_pdf/-char/en |
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