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Surfactant-decorated graphite nanoplatelets (GNPs) reinforced aluminum nanocomposites: sintering effects on hardness and wear

The exceptional properties of graphene make it ideal as a reinforcement to enhance the properties of aluminum matrices and this critically depends on uniform dispersion. In this study, the dispersion issue was addressed by sonication and non-covalent surface functionalization of graphite nanoplatele...

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Main Authors: Baig, Z., Mamat, O., Mustapha, M., Mumtaz, A., Ali, S., Sarfraz, M.
Format: Article
Published: University of Science and Technology Beijing 2018
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047786554&doi=10.1007%2fs12613-018-1618-3&partnerID=40&md5=6f1a4a2c2d799dda25238767b0f1b2c3
http://eprints.utp.edu.my/20879/
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spelling my.utp.eprints.208792019-02-26T02:35:13Z Surfactant-decorated graphite nanoplatelets (GNPs) reinforced aluminum nanocomposites: sintering effects on hardness and wear Baig, Z. Mamat, O. Mustapha, M. Mumtaz, A. Ali, S. Sarfraz, M. The exceptional properties of graphene make it ideal as a reinforcement to enhance the properties of aluminum matrices and this critically depends on uniform dispersion. In this study, the dispersion issue was addressed by sonication and non-covalent surface functionalization of graphite nanoplatelets (GNPs) using two types of surfactant: anionic (sodium dodecyl benzene sulfate (SDBS)) and non-ionic polymeric (ethyl cellulose (EC)). After colloidal mixing with Al powder, consolidation was performed at two sintering temperatures (550 and 620°C). The structure, density, mechanical and wear properties of the nanocomposite samples were investigated and compared with a pure Al and a pure GNPs/Al nanocomposite sample. Noticeably, EC-based 0.5wt GNPs/Al samples showed the highest increment of 31 increase in hardness with reduced wear rate of 98.25 at 620°C, while a 22 increase in hardness with reduced wear rate of 96.98 at 550°C was observed, as compared to pure Al. Microstructural analysis and the overall results validate the use of EC-based GNPs/Al nanocomposites as they performed better than pure Al and pure GNPs/Al nanocomposite at both sintering temperatures. © 2018, University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature. University of Science and Technology Beijing 2018 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047786554&doi=10.1007%2fs12613-018-1618-3&partnerID=40&md5=6f1a4a2c2d799dda25238767b0f1b2c3 Baig, Z. and Mamat, O. and Mustapha, M. and Mumtaz, A. and Ali, S. and Sarfraz, M. (2018) Surfactant-decorated graphite nanoplatelets (GNPs) reinforced aluminum nanocomposites: sintering effects on hardness and wear. International Journal of Minerals, Metallurgy and Materials, 25 (6). pp. 704-715. http://eprints.utp.edu.my/20879/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description The exceptional properties of graphene make it ideal as a reinforcement to enhance the properties of aluminum matrices and this critically depends on uniform dispersion. In this study, the dispersion issue was addressed by sonication and non-covalent surface functionalization of graphite nanoplatelets (GNPs) using two types of surfactant: anionic (sodium dodecyl benzene sulfate (SDBS)) and non-ionic polymeric (ethyl cellulose (EC)). After colloidal mixing with Al powder, consolidation was performed at two sintering temperatures (550 and 620°C). The structure, density, mechanical and wear properties of the nanocomposite samples were investigated and compared with a pure Al and a pure GNPs/Al nanocomposite sample. Noticeably, EC-based 0.5wt GNPs/Al samples showed the highest increment of 31 increase in hardness with reduced wear rate of 98.25 at 620°C, while a 22 increase in hardness with reduced wear rate of 96.98 at 550°C was observed, as compared to pure Al. Microstructural analysis and the overall results validate the use of EC-based GNPs/Al nanocomposites as they performed better than pure Al and pure GNPs/Al nanocomposite at both sintering temperatures. © 2018, University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature.
format Article
author Baig, Z.
Mamat, O.
Mustapha, M.
Mumtaz, A.
Ali, S.
Sarfraz, M.
spellingShingle Baig, Z.
Mamat, O.
Mustapha, M.
Mumtaz, A.
Ali, S.
Sarfraz, M.
Surfactant-decorated graphite nanoplatelets (GNPs) reinforced aluminum nanocomposites: sintering effects on hardness and wear
author_facet Baig, Z.
Mamat, O.
Mustapha, M.
Mumtaz, A.
Ali, S.
Sarfraz, M.
author_sort Baig, Z.
title Surfactant-decorated graphite nanoplatelets (GNPs) reinforced aluminum nanocomposites: sintering effects on hardness and wear
title_short Surfactant-decorated graphite nanoplatelets (GNPs) reinforced aluminum nanocomposites: sintering effects on hardness and wear
title_full Surfactant-decorated graphite nanoplatelets (GNPs) reinforced aluminum nanocomposites: sintering effects on hardness and wear
title_fullStr Surfactant-decorated graphite nanoplatelets (GNPs) reinforced aluminum nanocomposites: sintering effects on hardness and wear
title_full_unstemmed Surfactant-decorated graphite nanoplatelets (GNPs) reinforced aluminum nanocomposites: sintering effects on hardness and wear
title_sort surfactant-decorated graphite nanoplatelets (gnps) reinforced aluminum nanocomposites: sintering effects on hardness and wear
publisher University of Science and Technology Beijing
publishDate 2018
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047786554&doi=10.1007%2fs12613-018-1618-3&partnerID=40&md5=6f1a4a2c2d799dda25238767b0f1b2c3
http://eprints.utp.edu.my/20879/
_version_ 1738656245531803648
score 13.211869

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