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Physical Chemistry Research، جلد ۱۱، شماره ۲، صفحات ۱۸۱-۱۸۹
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عنوان انگلیسی The Rheology of Nanolubricants Based on Fe2O3, Al2O3, and ZnO Oxide Nanoparticles: A Comparative Study
چکیده انگلیسی مقاله In the present article, a comparative study of the rheological characteristics of nano-lubricants based on Fe2O3, Al2O3 and ZnO nanoparticles is carried out. The base fluid used is 20W40 engine oil. The nanofluid samples were prepared in the solid volume fractions (0.25%; 0.50%; 0.75% and 1%). The measurements have been performed at different temperatures, ranging between 20 °C and 60 °C and at shear rates ranging from 100 s-1 to 300 s-1. The results obtained have shown that nanofluids based on Fe2O3 and ZnO nanoparticles exhibit a non Newtonian shear thinning behaviour while the nanofluid based on Al2O3 nanoparticle exhibit a Newtonian behaviour. The Al2O3/oil nanofluid has a lower dynamic viscosity than Fe2O3/oil and ZnO/oil nanofluids. The increase in temperature leads to a reduction of more than 80% in viscosity for all nanofluids. On the other hand, the increase of the nanoparticles volume concentration clearly improves the dynamic viscosity.
کلیدواژه‌های انگلیسی مقاله Viscosity,Nanofluid,Rheological behaviour,Nanoparticles
نویسندگان مقاله Ahmed Harchaoui |
Faculty of Applied Sciences, Synthesis and Catalysis Laboratory LSCT, Ibn-Khaldoun University, Tiaret BP P 78 Zaâroura 14000, Tiaret, Algeria

Ridha Mazouzi |
Department of Technology, FIMA Laboratory, Theniet El-Had Road 44225, University of Khemis Miliana, Ain Defla, Algeria

Abdelkader Karas |
Faculty of Applied Sciences, Synthesis and Catalysis Laboratory LSCT, Ibn-Khaldoun University, Tiaret BP P 78 Zaâroura 14000, Tiaret, Algeria

نشانی اینترنتی https://www.physchemres.org/article_150895_eb6576937c773a2bb598b0bdd100a180.pdf
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