Mechanical and Tribological Attributes of Al-CNT-Sn Composites Prepared by Press and Sintering
Carbon nanotubes (CNTs) have shown tremendous progress during the past two decades due to their extraordinary properties. With CNTs added as an alloying element, various engineering materials exhibit better mechanical properties. Multi-walled carbon nanotubes (MWCNT) were synthesized in-house by che...
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MDPI AG
2021-08-01
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| Series: | Journal of Composites Science |
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| Online Access: | https://www.mdpi.com/2504-477X/5/8/215 |
| _version_ | 1797523394703392768 |
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| author | Vilas Dhore Walmik Rathod Kashinath Patil |
| author_facet | Vilas Dhore Walmik Rathod Kashinath Patil |
| author_sort | Vilas Dhore |
| collection | DOAJ |
| description | Carbon nanotubes (CNTs) have shown tremendous progress during the past two decades due to their extraordinary properties. With CNTs added as an alloying element, various engineering materials exhibit better mechanical properties. Multi-walled carbon nanotubes (MWCNT) were synthesized in-house by chemical vapor deposition process. Carbon nanotube-reinforced aluminum composites were prepared by cold pressing (or compaction) and sintering using different fractions (0.5, 1.0, 1.5, and 2.0 weight percent) of MWCNTs. The Al-CNT composites consists of tin (Sn) at 1.0 wt. % in each composition. Tin promotes the sintering of aluminum matrix composite. The effect of CNT on the density, hardness, and wear behavior of the composites were studied. Wear tests were performed to determine friction and wear under dry, wet, and hot conditions under varying loads from 5 N to 20 N. X-ray diffraction, Raman spectroscopy, scanning electron microscopy, and transmission electron microscopy techniques were used for the characterization. This investigation shows that increased CNT content significantly improves the hardness and wear resistance of the composites. The friction and wear were found to increase with operating temperature. A significant reduction in coefficient of friction and wear rate was observed with the application of oil during the wear test. |
| first_indexed | 2024-03-10T08:42:21Z |
| format | Article |
| id | doaj.art-d09cf3297b8c4035ab90d1ee5ff2d52d |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-10T08:42:21Z |
| publishDate | 2021-08-01 |
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| series | Journal of Composites Science |
| spelling | doaj.art-d09cf3297b8c4035ab90d1ee5ff2d52d2023-11-22T08:13:31ZengMDPI AGJournal of Composites Science2504-477X2021-08-015821510.3390/jcs5080215Mechanical and Tribological Attributes of Al-CNT-Sn Composites Prepared by Press and SinteringVilas Dhore0Walmik Rathod1Kashinath Patil2Department of Mechanical Engineering, Veermata Jijabai Technological Institute, Mumbai 400019, IndiaDepartment of Mechanical Engineering, Veermata Jijabai Technological Institute, Mumbai 400019, IndiaDepartment of Mechanical Engineering, K J Somaiya College of Engineering, Mumbai 400077, IndiaCarbon nanotubes (CNTs) have shown tremendous progress during the past two decades due to their extraordinary properties. With CNTs added as an alloying element, various engineering materials exhibit better mechanical properties. Multi-walled carbon nanotubes (MWCNT) were synthesized in-house by chemical vapor deposition process. Carbon nanotube-reinforced aluminum composites were prepared by cold pressing (or compaction) and sintering using different fractions (0.5, 1.0, 1.5, and 2.0 weight percent) of MWCNTs. The Al-CNT composites consists of tin (Sn) at 1.0 wt. % in each composition. Tin promotes the sintering of aluminum matrix composite. The effect of CNT on the density, hardness, and wear behavior of the composites were studied. Wear tests were performed to determine friction and wear under dry, wet, and hot conditions under varying loads from 5 N to 20 N. X-ray diffraction, Raman spectroscopy, scanning electron microscopy, and transmission electron microscopy techniques were used for the characterization. This investigation shows that increased CNT content significantly improves the hardness and wear resistance of the composites. The friction and wear were found to increase with operating temperature. A significant reduction in coefficient of friction and wear rate was observed with the application of oil during the wear test.https://www.mdpi.com/2504-477X/5/8/215aluminumcarbon nanotubes (CNT)compositespowder metallurgycold pressingargon sintering |
| spellingShingle | Vilas Dhore Walmik Rathod Kashinath Patil Mechanical and Tribological Attributes of Al-CNT-Sn Composites Prepared by Press and Sintering Journal of Composites Science aluminum carbon nanotubes (CNT) composites powder metallurgy cold pressing argon sintering |
| title | Mechanical and Tribological Attributes of Al-CNT-Sn Composites Prepared by Press and Sintering |
| title_full | Mechanical and Tribological Attributes of Al-CNT-Sn Composites Prepared by Press and Sintering |
| title_fullStr | Mechanical and Tribological Attributes of Al-CNT-Sn Composites Prepared by Press and Sintering |
| title_full_unstemmed | Mechanical and Tribological Attributes of Al-CNT-Sn Composites Prepared by Press and Sintering |
| title_short | Mechanical and Tribological Attributes of Al-CNT-Sn Composites Prepared by Press and Sintering |
| title_sort | mechanical and tribological attributes of al cnt sn composites prepared by press and sintering |
| topic | aluminum carbon nanotubes (CNT) composites powder metallurgy cold pressing argon sintering |
| url | https://www.mdpi.com/2504-477X/5/8/215 |
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