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An efficient approach to address issues of graphene nanoplatelets (GNPs) incorporation in aluminium powders and their compaction behaviour

The exceptional potential of the graphene has not been yet fully translated into the Al matrix to achieve high-performance Al nanocomposite. This is due to some critical issues faced by graphene during its processing such as the dispersion uniformity, structure damage, compatibility/wettability, and...

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Main Authors: Baig, Z., Mamat, O., Mustapha, M., Mumtaz, A., Sarfraz, M., Haider, S.
Format: Article
Published: MDPI AG 2018
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041018921&doi=10.3390%2fmet8020090&partnerID=40&md5=6978c41181fc8e0fcd2f4da5d4923468
http://eprints.utp.edu.my/20674/
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spelling my.utp.eprints.206742018-09-25T00:46:24Z An efficient approach to address issues of graphene nanoplatelets (GNPs) incorporation in aluminium powders and their compaction behaviour Baig, Z. Mamat, O. Mustapha, M. Mumtaz, A. Sarfraz, M. Haider, S. The exceptional potential of the graphene has not been yet fully translated into the Al matrix to achieve high-performance Al nanocomposite. This is due to some critical issues faced by graphene during its processing such as the dispersion uniformity, structure damage, compatibility/wettability, and low graphene embedding content in Al matrix. In the present work, a new integrative method was adopted and named as �solvent dispersion and ball milling� (SDBM) to address the issues above efficiently in a single approach. This strategy involves effective graphene nanoplatelets (GNPs) solvent dispersion via surfactant decoration and solution ball milling employed to polyvinyl alcohol (PVA) coated Al with various GNPs content (0.5, 1 and 1.5 wt. ). Flaky Al powder morphology attained by optimizing ball milling parameters and used for further processing with GNPs. Detailed powders characterizations were conducted to investigate morphology, graphene dispersion, group functionalities by FTIR (Fourier transform infrared spectroscopy) spectroscopy and crystallinity by powder XRD (X-ray diffraction)analysis. Compaction behaviour and spring back effect of the GNPs/Al powders was also investigated at different compaction pressure (300 to 600 Mpa) and varying GNPs fractions. In response, green and sintered relative density () along with effect on the hardness of the nanocomposites samples were examined. Conclusively, in comparison with the unreinforced Al, GNP/Al nanocomposite with 1.5 wt. GNPs exhibited the highest hardness gives 62 maximum increase than pure Al validates the effectiveness of the approach produces high fraction uniformly dispersed GNPs in Al matrix. © 2018 by the authors. Licensee MDPI, Basel, Switzerland. MDPI AG 2018 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041018921&doi=10.3390%2fmet8020090&partnerID=40&md5=6978c41181fc8e0fcd2f4da5d4923468 Baig, Z. and Mamat, O. and Mustapha, M. and Mumtaz, A. and Sarfraz, M. and Haider, S. (2018) An efficient approach to address issues of graphene nanoplatelets (GNPs) incorporation in aluminium powders and their compaction behaviour. Metals, 8 (2). http://eprints.utp.edu.my/20674/
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 potential of the graphene has not been yet fully translated into the Al matrix to achieve high-performance Al nanocomposite. This is due to some critical issues faced by graphene during its processing such as the dispersion uniformity, structure damage, compatibility/wettability, and low graphene embedding content in Al matrix. In the present work, a new integrative method was adopted and named as �solvent dispersion and ball milling� (SDBM) to address the issues above efficiently in a single approach. This strategy involves effective graphene nanoplatelets (GNPs) solvent dispersion via surfactant decoration and solution ball milling employed to polyvinyl alcohol (PVA) coated Al with various GNPs content (0.5, 1 and 1.5 wt. ). Flaky Al powder morphology attained by optimizing ball milling parameters and used for further processing with GNPs. Detailed powders characterizations were conducted to investigate morphology, graphene dispersion, group functionalities by FTIR (Fourier transform infrared spectroscopy) spectroscopy and crystallinity by powder XRD (X-ray diffraction)analysis. Compaction behaviour and spring back effect of the GNPs/Al powders was also investigated at different compaction pressure (300 to 600 Mpa) and varying GNPs fractions. In response, green and sintered relative density () along with effect on the hardness of the nanocomposites samples were examined. Conclusively, in comparison with the unreinforced Al, GNP/Al nanocomposite with 1.5 wt. GNPs exhibited the highest hardness gives 62 maximum increase than pure Al validates the effectiveness of the approach produces high fraction uniformly dispersed GNPs in Al matrix. © 2018 by the authors. Licensee MDPI, Basel, Switzerland.
format Article
author Baig, Z.
Mamat, O.
Mustapha, M.
Mumtaz, A.
Sarfraz, M.
Haider, S.
spellingShingle Baig, Z.
Mamat, O.
Mustapha, M.
Mumtaz, A.
Sarfraz, M.
Haider, S.
An efficient approach to address issues of graphene nanoplatelets (GNPs) incorporation in aluminium powders and their compaction behaviour
author_facet Baig, Z.
Mamat, O.
Mustapha, M.
Mumtaz, A.
Sarfraz, M.
Haider, S.
author_sort Baig, Z.
title An efficient approach to address issues of graphene nanoplatelets (GNPs) incorporation in aluminium powders and their compaction behaviour
title_short An efficient approach to address issues of graphene nanoplatelets (GNPs) incorporation in aluminium powders and their compaction behaviour
title_full An efficient approach to address issues of graphene nanoplatelets (GNPs) incorporation in aluminium powders and their compaction behaviour
title_fullStr An efficient approach to address issues of graphene nanoplatelets (GNPs) incorporation in aluminium powders and their compaction behaviour
title_full_unstemmed An efficient approach to address issues of graphene nanoplatelets (GNPs) incorporation in aluminium powders and their compaction behaviour
title_sort efficient approach to address issues of graphene nanoplatelets (gnps) incorporation in aluminium powders and their compaction behaviour
publisher MDPI AG
publishDate 2018
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041018921&doi=10.3390%2fmet8020090&partnerID=40&md5=6978c41181fc8e0fcd2f4da5d4923468
http://eprints.utp.edu.my/20674/
_version_ 1738656217102811136
score 13.211869

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