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Issue 25, 2018, Issue in Progress
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Synthesis of highly stable γ-Fe2O3 ferrofluid dispersed in liquid paraffin, motor oil and sunflower oil for heat transfer applications

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Abstract

This article aims at the synthesis of highly stable γ-Fe2O3 magnetic nanoparticles and their ferrofluids using different base liquids such as liquid paraffin, motor oil and sunflower oil for heat transfer applications. Phase and morphology of the synthesized nanoparticles were probed using XRD, SEM and FTIR spectroscopy. The average nanoparticle size of γ-Fe2O3 magnetic nanoparticles was found to be 13 nm. Stability of the ferrofluids was monitored by visually observing the aggregation nature of the nanoparticles for 180 days. The ferrofluid prepared using motor oil as a base fluid exhibited high stability (for more than 1 year) and a mean enhancement of 77% in thermal conductivity at 1.5 vol% nanoparticles was observed as compared to base fluid. The viscosity of the ferrofluids was also measured and found to be 18, 38 and 8 cP at 27 °C for the liquid paraffin based, motor oil based and sunflower oil based ferrofluid, respectively.

Graphical abstract: Synthesis of highly stable γ-Fe2O3 ferrofluid dispersed in liquid paraffin, motor oil and sunflower oil for heat transfer applications

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Article information


Submitted
19 Dec 2017
Accepted
08 Apr 2018
First published
16 Apr 2018

This article is Open Access

RSC Adv., 2018,8, 13970-13975
Article type
Paper

Synthesis of highly stable γ-Fe2O3 ferrofluid dispersed in liquid paraffin, motor oil and sunflower oil for heat transfer applications

M. Imran, A. H. Shaik, A. R. Ansari, A. Aziz, S. Hussain, A. F. Fadil Abouatiaa, A. Khan and M. R. Chandan, RSC Adv., 2018, 8, 13970
DOI: 10.1039/C7RA13467C

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    [Original citation] - Published by The Royal Society of Chemistry.

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