Effect of anodizing voltage on surface and physical properties of CNTs incorporated aluminium oxide films
In this study, the surface characteristics of CNTs/Al2O3 films growth from Al alloy were investigated at different anodizing voltage. The samples were anodized in sulphuric acid containing CNTs as electrolyte with the voltage ranging from 5 V to 15 V. Surface morphology and crystal structure were ob...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Malaysian Tribology Society (Mytribos)
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/119369/ http://psasir.upm.edu.my/id/eprint/119369/1/119369.pdf |
| _version_ | 1848867946706763776 |
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| author | Yaakob, Yazid Muktar, Muhammad Izzat A. Aziz, Aflah Awang Kechik, Mohd Mustafa Mamat @ Mat Nazir, Md Shuhazlly Chan, Kar Fei Mat Tahir, Noor Ayuma Kamis, Shahira Liza |
| author_facet | Yaakob, Yazid Muktar, Muhammad Izzat A. Aziz, Aflah Awang Kechik, Mohd Mustafa Mamat @ Mat Nazir, Md Shuhazlly Chan, Kar Fei Mat Tahir, Noor Ayuma Kamis, Shahira Liza |
| author_sort | Yaakob, Yazid |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this study, the surface characteristics of CNTs/Al2O3 films growth from Al alloy were investigated at different anodizing voltage. The samples were anodized in sulphuric acid containing CNTs as electrolyte with the voltage ranging from 5 V to 15 V. Surface morphology and crystal structure were observed with SEM and XRD, while the microhardness was analysed via Vickers hardness tester. The XRD spectra revealed that bare aluminium, AAO and AAO-CNTs composed orthorhombic and γ-Al2O3. The surface topography was examined with 3D Optical Profiler, and the findings showed that higher anodizing voltage leads to higher surface roughness (5.71 μm) and pores dimension (w: 43.69 μm and d: 39.63 μm). By adding CNTs, it can reduce surface roughness to 4.80 μm by 16% with pore dimension (w: 37.79 μm and d: 33.78 μm). It can be supported by SEM-EDX showing that enhancement of CNTs into AAO is believed to reduce the porosity. The Vickers hardness of AAO-CNTs showed the highest value which is 210.40 HV compared to the bare aluminium alloy (130.50 Hv) and AAO (198.60 Hv), as CNTs filled in the porosity of oxide layer. This finding provides an additional knowledge incorporating CNTs into aluminum oxide through anodizing technique. |
| first_indexed | 2025-11-15T14:44:35Z |
| format | Article |
| id | upm-119369 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:44:35Z |
| publishDate | 2024 |
| publisher | Malaysian Tribology Society (Mytribos) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1193692025-08-18T07:05:35Z http://psasir.upm.edu.my/id/eprint/119369/ Effect of anodizing voltage on surface and physical properties of CNTs incorporated aluminium oxide films Yaakob, Yazid Muktar, Muhammad Izzat A. Aziz, Aflah Awang Kechik, Mohd Mustafa Mamat @ Mat Nazir, Md Shuhazlly Chan, Kar Fei Mat Tahir, Noor Ayuma Kamis, Shahira Liza In this study, the surface characteristics of CNTs/Al2O3 films growth from Al alloy were investigated at different anodizing voltage. The samples were anodized in sulphuric acid containing CNTs as electrolyte with the voltage ranging from 5 V to 15 V. Surface morphology and crystal structure were observed with SEM and XRD, while the microhardness was analysed via Vickers hardness tester. The XRD spectra revealed that bare aluminium, AAO and AAO-CNTs composed orthorhombic and γ-Al2O3. The surface topography was examined with 3D Optical Profiler, and the findings showed that higher anodizing voltage leads to higher surface roughness (5.71 μm) and pores dimension (w: 43.69 μm and d: 39.63 μm). By adding CNTs, it can reduce surface roughness to 4.80 μm by 16% with pore dimension (w: 37.79 μm and d: 33.78 μm). It can be supported by SEM-EDX showing that enhancement of CNTs into AAO is believed to reduce the porosity. The Vickers hardness of AAO-CNTs showed the highest value which is 210.40 HV compared to the bare aluminium alloy (130.50 Hv) and AAO (198.60 Hv), as CNTs filled in the porosity of oxide layer. This finding provides an additional knowledge incorporating CNTs into aluminum oxide through anodizing technique. Malaysian Tribology Society (Mytribos) 2024 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/119369/1/119369.pdf Yaakob, Yazid and Muktar, Muhammad Izzat and A. Aziz, Aflah and Awang Kechik, Mohd Mustafa and Mamat @ Mat Nazir, Md Shuhazlly and Chan, Kar Fei and Mat Tahir, Noor Ayuma and Kamis, Shahira Liza (2024) Effect of anodizing voltage on surface and physical properties of CNTs incorporated aluminium oxide films. Jurnal Tribologi, 41. pp. 144-161. ISSN 2289-7232; eISSN: 2289-7232 https://jurnaltribologi.mytribos.org/v41.html , https://scholar.google.com/citations?view_op=view_citation&hl=en&user=o0SIdM8AAAAJ&sortby=pubdate&citation_for_view=o0SIdM8AAAAJ:bFI3QPDXJZMC |
| spellingShingle | Yaakob, Yazid Muktar, Muhammad Izzat A. Aziz, Aflah Awang Kechik, Mohd Mustafa Mamat @ Mat Nazir, Md Shuhazlly Chan, Kar Fei Mat Tahir, Noor Ayuma Kamis, Shahira Liza Effect of anodizing voltage on surface and physical properties of CNTs incorporated aluminium oxide films |
| title | Effect of anodizing voltage on surface and physical properties of CNTs incorporated aluminium oxide films |
| title_full | Effect of anodizing voltage on surface and physical properties of CNTs incorporated aluminium oxide films |
| title_fullStr | Effect of anodizing voltage on surface and physical properties of CNTs incorporated aluminium oxide films |
| title_full_unstemmed | Effect of anodizing voltage on surface and physical properties of CNTs incorporated aluminium oxide films |
| title_short | Effect of anodizing voltage on surface and physical properties of CNTs incorporated aluminium oxide films |
| title_sort | effect of anodizing voltage on surface and physical properties of cnts incorporated aluminium oxide films |
| url | http://psasir.upm.edu.my/id/eprint/119369/ http://psasir.upm.edu.my/id/eprint/119369/ http://psasir.upm.edu.my/id/eprint/119369/1/119369.pdf |