Graphene-incorporated aluminum with enhanced thermal and mechanical properties for solar heat collectors

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dc.citation.articleNumber065016en_US
dc.citation.issueNumber6en_US
dc.citation.journalTitleAIP Advancesen_US
dc.citation.volumeNumber10en_US
dc.contributor.authorPradhan, Sunil Kumaren_US
dc.contributor.authorSahoo, Mihir Ranjanen_US
dc.contributor.authorRatha, Satyajiten_US
dc.contributor.authorPolai, Balaramen_US
dc.contributor.authorMitra, Arijiten_US
dc.contributor.authorSathpathy, Bijoyen_US
dc.contributor.authorSahu, Arunen_US
dc.contributor.authorKar, Subraten_US
dc.contributor.authorSatyam, Parlapalli V.en_US
dc.contributor.authorAjayan, Pulickel M.en_US
dc.contributor.authorNayak, Saroj Kumaren_US
dc.date.accessioned2020-11-04T19:55:49Zen_US
dc.date.available2020-11-04T19:55:49Zen_US
dc.date.issued2020en_US
dc.description.abstractA simple yet innovative approach has been made through a powder metallurgy route for the synthesis of aluminum–graphene (Al–Gr) composite materials for commercially viable solar thermal collectors. The Al–Gr composite (with 1 wt. % of graphene filler content) recorded an enhanced thermal conductivity of ∼280 W/mK, which is higher than that of pristine Al (∼124 W/mK), at room temperature. It has also been found that the prepared composite has a lower coefficient of thermal expansion. The structures and morphologies of the composites have been investigated in detail with the help of X-ray diffraction technique, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, Raman spectroscopy, etc. Furthermore, the density measurements showed that the composites retain ∼97.5% of the density of pristine aluminum even after the sintering treatment. X-ray micro-computed tomography revealed the structural integrity and non-porous nature of the samples, free from any defects and deformations. The thermal fusing of Al-based composite materials at 630 °C is found to be satisfactory with the required strength, and the composites showed at least ∼125% increase in the thermal conductivity than that of pristine Al. These results suggest that the Al–Gr composites can be deployed as solar thermal collectors and heat sink materials for thermal dissipation.en_US
dc.identifier.citationPradhan, Sunil Kumar, Sahoo, Mihir Ranjan, Ratha, Satyajit, et al.. "Graphene-incorporated aluminum with enhanced thermal and mechanical properties for solar heat collectors." <i>AIP Advances,</i> 10, no. 6 (2020) American Institute of Physics: https://doi.org/10.1063/5.0008786.en_US
dc.identifier.doihttps://doi.org/10.1063/5.0008786en_US
dc.identifier.urihttps://hdl.handle.net/1911/109511en_US
dc.language.isoengen_US
dc.publisherAmerican Institute of Physicsen_US
dc.rightsAll article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) licenseen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleGraphene-incorporated aluminum with enhanced thermal and mechanical properties for solar heat collectorsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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