http://repository.iitr.ac.in/handle/123456789/12941| Title: | Nanoscratch behavior of carbon nanotube reinforced aluminum coatings |
| Authors: | Bakshi S.R. Lahiri, Debrupa Patel R.R. Agarwal A. |
| Published in: | Thin Solid Films |
| Abstract: | Nanoscratch experiments have been carried out on plasma sprayed aluminum alloy coatings reinforced with 0, 5 and 10 wt.% carbon nanotubes (CNTs). Scratches have been performed at loads of 1000, 2000 and 3000 μN load using Berkovich indenter. The contact and true wear volumes of the scratches have been calculated. The nano-scale wear resistance is shown to increase by 4 times by addition of 10 wt.% CNTs. Improvement in the wear resistance is discussed with respect to strengthening effect and increased elastic recovery by addition of CNTs. Direct evidence of increased recovery and small decrease in the coefficient of friction with CNT content is provided using the true and instantaneous depth plots and the corresponding scanning probe microscope and scanning electron microscope images of the scratches. Friction coefficient was found to be load independent and was found to vary slightly with the CNT content. © 2009 Elsevier B.V. All rights reserved. |
| Citation: | Thin Solid Films (2010), 518(6): 1703-1711 |
| URI: | https://doi.org/10.1016/j.tsf.2009.11.079 http://repository.iitr.ac.in/handle/123456789/12941 |
| Issue Date: | 2010 |
| Keywords: | Carbon nanotubes Friction coefficient Metal matrix composite Nanoscratch test Plasma spraying Scanning probe microscopy |
| ISSN: | 406090 |
| Author Scopus IDs: | 24177950800 26326345700 35320419000 7401480913 |
| Author Affiliations: | Bakshi, S.R., Plasma Forming Laboratory, Nanomechanics and Nanotribology Laboratory, Department of Mechanical and Materials Engineering, Miami, FL 33174, United States Lahiri, D., Plasma Forming Laboratory, Nanomechanics and Nanotribology Laboratory, Department of Mechanical and Materials Engineering, Miami, FL 33174, United States Patel, R.R., Plasma Forming Laboratory, Nanomechanics and Nanotribology Laboratory, Department of Mechanical and Materials Engineering, Miami, FL 33174, United States Agarwal, A., Plasma Forming Laboratory, Nanomechanics and Nanotribology Laboratory, Department of Mechanical and Materials Engineering, Miami, FL 33174, United States |
| Funding Details: | Authors acknowledge financial support from the National Science Foundation CAREER Award ( NSF-DMI-0547178 ) and DURIP Grant from Office of Naval Research ( N00014-06-0675 ). Srinivasa Rao Bakshi would like to acknowledge Dissertation Year Fellowship from Florida International University. |
| Corresponding Author: | Agarwal, A.; Plasma Forming Laboratory, Nanomechanics and Nanotribology Laboratory, Department of Mechanical and Materials Engineering, Miami, FL 33174, United States; email: agarwala@fiu.edu |
| Appears in Collections: | Journal Publications [MT] |
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