Duan, Fei and Kwek, Dingtian and Crivoi, Alexandru (2011) Viscosity affected by nanoparticle aggregation in Al2O3-water nanofluids. Nanoscale Research Letters, 6 (1). pp. 1-5.
Official URL: http://www.nanoscalereslett.com/content/6/1/248/ab...
An investigation on viscosity was conducted 2 weeks after the Al2O3-water nanofluids having dispersants were prepared at the volume concentration of 1-5%. The shear stress was observed with a non-Newtonian behavior. On further ultrasonic agitation treatment, the nanofluids resumed as a Newtonian fluids. The relative viscosity increases as the volume concentrations increases. At 5% volume concentration, an increment was about 60% in the re-ultrasonication nanofluids in comparison with the base fluid. The microstructure analysis indicates that a higher nanoparticle aggregation had been observed in the nanofluids before re-ultrasonication.
|Subjects:||Physical Science > Nano objects|
Material Science > Nanostructured materials
Material Science > Nanochemistry
|Divisions:||Faculty of Engineering, Science and Mathematics > School of Physics|
Faculty of Engineering, Science and Mathematics > School of Chemistry
|Deposited On:||14 Sep 2011 05:41|
|Last Modified:||14 Sep 2011 05:41|
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