Surface morphology and nanofriction of thermally treated multilayer graphene
Correlation of surface morphology alteration in affecting the nanotribological properties of multilayer graphene (Gr) film has been rarely reported in the literature. Thus, the study determines the extent of surface morphology alteration influencing the friction of multilayer Gr film. The multilayer...
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my.utm.1027152023-09-18T04:16:04Z http://eprints.utm.my/id/eprint/102715/ Surface morphology and nanofriction of thermally treated multilayer graphene Lee, Mei Bao Lee, Chiew Tin Chong, William Woei Fong Chong, Cheng Tung Mohd. Sanip, Suhaila TJ Mechanical engineering and machinery Correlation of surface morphology alteration in affecting the nanotribological properties of multilayer graphene (Gr) film has been rarely reported in the literature. Thus, the study determines the extent of surface morphology alteration influencing the friction of multilayer Gr film. The multilayer Gr film was treated at 200? and 400? using a one-zone tube furnace under vacuum. At 400?, the film area roughness was reduced by 53% (Sa). Through Raman analysis, the reduced roughness is attributed to mechanical (tensile) strain. Concurrently, the coefficient of friction dropped from 0.14 to 0.05 (64% reduction), inferring that the multilayer Gr film friction can be modified using thermal treatment. This treated sample also exhibited improved electrical conductivity (33% sheet resistance reduction) due to electron doping. The improved conductivity with lower nanofriction of the treated multilayer Gr film is favourable for sliding electrical contact interfaces, imperative in enhancing the broad adoption of Gr in MEMS/NEMS. Inderscience Publishers 2022 Article PeerReviewed Lee, Mei Bao and Lee, Chiew Tin and Chong, William Woei Fong and Chong, Cheng Tung and Mohd. Sanip, Suhaila (2022) Surface morphology and nanofriction of thermally treated multilayer graphene. International Journal of Surface Science and Engineering, 16 (4). pp. 349-366. ISSN 1749-785X http://dx.doi.org/10.1504/IJSURFSE.2022.127070 DOI: 10.1504/IJSURFSE.2022.127070 |
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TJ Mechanical engineering and machinery Lee, Mei Bao Lee, Chiew Tin Chong, William Woei Fong Chong, Cheng Tung Mohd. Sanip, Suhaila Surface morphology and nanofriction of thermally treated multilayer graphene |
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Correlation of surface morphology alteration in affecting the nanotribological properties of multilayer graphene (Gr) film has been rarely reported in the literature. Thus, the study determines the extent of surface morphology alteration influencing the friction of multilayer Gr film. The multilayer Gr film was treated at 200? and 400? using a one-zone tube furnace under vacuum. At 400?, the film area roughness was reduced by 53% (Sa). Through Raman analysis, the reduced roughness is attributed to mechanical (tensile) strain. Concurrently, the coefficient of friction dropped from 0.14 to 0.05 (64% reduction), inferring that the multilayer Gr film friction can be modified using thermal treatment. This treated sample also exhibited improved electrical conductivity (33% sheet resistance reduction) due to electron doping. The improved conductivity with lower nanofriction of the treated multilayer Gr film is favourable for sliding electrical contact interfaces, imperative in enhancing the broad adoption of Gr in MEMS/NEMS. |
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Article |
author |
Lee, Mei Bao Lee, Chiew Tin Chong, William Woei Fong Chong, Cheng Tung Mohd. Sanip, Suhaila |
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Lee, Mei Bao Lee, Chiew Tin Chong, William Woei Fong Chong, Cheng Tung Mohd. Sanip, Suhaila |
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Lee, Mei Bao |
title |
Surface morphology and nanofriction of thermally treated multilayer graphene |
title_short |
Surface morphology and nanofriction of thermally treated multilayer graphene |
title_full |
Surface morphology and nanofriction of thermally treated multilayer graphene |
title_fullStr |
Surface morphology and nanofriction of thermally treated multilayer graphene |
title_full_unstemmed |
Surface morphology and nanofriction of thermally treated multilayer graphene |
title_sort |
surface morphology and nanofriction of thermally treated multilayer graphene |
publisher |
Inderscience Publishers |
publishDate |
2022 |
url |
http://eprints.utm.my/id/eprint/102715/ http://dx.doi.org/10.1504/IJSURFSE.2022.127070 |
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1778160770846031872 |
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13.211869 |