Feasibility of wear reduction for soft nanostructured thin film through enhanced elastic recoverability and contact stress relief
Abstract This work shows that a soft, thin film comprising randomly aligned carbon nanotubes (CNTs) can reduce surface wear more effectively than a homogeneous thin film because of enhanced elastic recoverability and contact stress relief originating from its mesh structure. To investigate the wear...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2022-11-01
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| Series: | Friction |
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| Online Access: | https://doi.org/10.1007/s40544-022-0669-7 |
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| author | Kuk-Jin Seo Hyun-Joon Kim Dae-Eun Kim |
| author_facet | Kuk-Jin Seo Hyun-Joon Kim Dae-Eun Kim |
| author_sort | Kuk-Jin Seo |
| collection | DOAJ |
| description | Abstract This work shows that a soft, thin film comprising randomly aligned carbon nanotubes (CNTs) can reduce surface wear more effectively than a homogeneous thin film because of enhanced elastic recoverability and contact stress relief originating from its mesh structure. To investigate the wear characteristics of the mesh structure compared to those of the homogeneous thin film, multi-walled CNTs (MWCNTs) and diamond-like carbon (DLC) thin films were prepared to conduct nanoscale tribological experiments using the atomic force microscopy (AFM). The MWCNT thin film showed unmeasurably low wear compared with the DLC thin film under a certain range of normal load. To demonstrate the wear reduction mechanism of the MWCNT thin film, its indentation and frictional behaviors were assessed. The indentation behavior of the MWCNT thin film revealed repetitive elastic deformation with a wide strain range and a significantly lower elastic modulus than that of the DLC thin film. The permanent deformation of the MWCNT thin film was observed through frictional experiments under relatively high normal load conditions. These results are expected to provide insights into the design of highly wear-resistant surfaces using nanostructures. |
| format | Article |
| id | doaj-art-0297f6e3f5cf4e469f3565577e846429 |
| institution | OA Journals |
| issn | 2223-7690 2223-7704 |
| language | English |
| publishDate | 2022-11-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Friction |
| spelling | doaj-art-0297f6e3f5cf4e469f3565577e8464292025-08-20T02:03:27ZengTsinghua University PressFriction2223-76902223-77042022-11-011171292130610.1007/s40544-022-0669-7Feasibility of wear reduction for soft nanostructured thin film through enhanced elastic recoverability and contact stress reliefKuk-Jin Seo0Hyun-Joon Kim1Dae-Eun Kim2Department of Mechanical Engineering, Yonsei UniversityDepartment of Precision Mechanical Engineering, Kyungpook National UniversityDepartment of Mechanical Engineering, Yonsei UniversityAbstract This work shows that a soft, thin film comprising randomly aligned carbon nanotubes (CNTs) can reduce surface wear more effectively than a homogeneous thin film because of enhanced elastic recoverability and contact stress relief originating from its mesh structure. To investigate the wear characteristics of the mesh structure compared to those of the homogeneous thin film, multi-walled CNTs (MWCNTs) and diamond-like carbon (DLC) thin films were prepared to conduct nanoscale tribological experiments using the atomic force microscopy (AFM). The MWCNT thin film showed unmeasurably low wear compared with the DLC thin film under a certain range of normal load. To demonstrate the wear reduction mechanism of the MWCNT thin film, its indentation and frictional behaviors were assessed. The indentation behavior of the MWCNT thin film revealed repetitive elastic deformation with a wide strain range and a significantly lower elastic modulus than that of the DLC thin film. The permanent deformation of the MWCNT thin film was observed through frictional experiments under relatively high normal load conditions. These results are expected to provide insights into the design of highly wear-resistant surfaces using nanostructures.https://doi.org/10.1007/s40544-022-0669-7carbon nanotube (CNT)thin filmwearfrictionelastic recovery |
| spellingShingle | Kuk-Jin Seo Hyun-Joon Kim Dae-Eun Kim Feasibility of wear reduction for soft nanostructured thin film through enhanced elastic recoverability and contact stress relief Friction carbon nanotube (CNT) thin film wear friction elastic recovery |
| title | Feasibility of wear reduction for soft nanostructured thin film through enhanced elastic recoverability and contact stress relief |
| title_full | Feasibility of wear reduction for soft nanostructured thin film through enhanced elastic recoverability and contact stress relief |
| title_fullStr | Feasibility of wear reduction for soft nanostructured thin film through enhanced elastic recoverability and contact stress relief |
| title_full_unstemmed | Feasibility of wear reduction for soft nanostructured thin film through enhanced elastic recoverability and contact stress relief |
| title_short | Feasibility of wear reduction for soft nanostructured thin film through enhanced elastic recoverability and contact stress relief |
| title_sort | feasibility of wear reduction for soft nanostructured thin film through enhanced elastic recoverability and contact stress relief |
| topic | carbon nanotube (CNT) thin film wear friction elastic recovery |
| url | https://doi.org/10.1007/s40544-022-0669-7 |
| work_keys_str_mv | AT kukjinseo feasibilityofwearreductionforsoftnanostructuredthinfilmthroughenhancedelasticrecoverabilityandcontactstressrelief AT hyunjoonkim feasibilityofwearreductionforsoftnanostructuredthinfilmthroughenhancedelasticrecoverabilityandcontactstressrelief AT daeeunkim feasibilityofwearreductionforsoftnanostructuredthinfilmthroughenhancedelasticrecoverabilityandcontactstressrelief |