Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/95224
Full metadata record
DC FieldValueLanguage
dc.contributor.authorDuan, Feien
dc.contributor.authorWong, Ting Foongen
dc.contributor.authorCrivoi, Alexandruen
dc.date.accessioned2013-02-19T03:20:25Zen
dc.date.accessioned2019-12-06T19:10:42Z-
dc.date.available2013-02-19T03:20:25Zen
dc.date.available2019-12-06T19:10:42Z-
dc.date.copyright2012en
dc.date.issued2012en
dc.identifier.citationDuan, F., Wong, T. F., & Crivoi, A. (2012). Dynamic viscosity measurement in non-Newtonian graphite nanofluids. Nanoscale Research Letters, 7(1), 360.en
dc.identifier.issn1556-276Xen
dc.identifier.urihttps://hdl.handle.net/10356/95224-
dc.identifier.urihttp://hdl.handle.net/10220/9143en
dc.description.abstractThe effective dynamic viscosity was measured in the graphite water-based nanofluids. The shear thinning non-Newtonian behavior is observed in the measurement. On the basis of the best fitting of the experimental data, the viscosity at zero shear rate or at infinite shear rate is determined for each of the fluids. It is found that increases of the particle volume concentration and the holding time period of the nanofluids result in an enhancement of the effective dynamic viscosity. The maximum enhancement of the effective dynamic viscosity at infinite rate of shear is more than 24 times in the nanofluids held for 3 days with the volume concentration of 4% in comparison with the base fluid. A transmission electron microscope is applied to reveal the morphology of aggregated nanoparticles qualitatively. The large and irregular aggregation of the particles is found in the 3-day fluids in the drying samples. The Raman spectra are extended to characterize the D and G peaks of the graphite structure in the nanofluids. The increasing intensity of the D peak indicates the nanoparticle aggregation growing with the higher concentration and the longer holding time of the nanofluids. The experimental results suggest that the increase on effective dynamic viscosity of nanofluids is related to the graphite nanoparticle aggregation in the fluids.en
dc.language.isoenen
dc.relation.ispartofseriesNanoscale research lettersen
dc.rights© 2012 The Authors. This paper was published in Nanoscale Research Letters and is made available as an electronic reprint (preprint) with permission of The Authors. The paper can be found at the following official DOI: [http://dx.doi.org/10.1186/1556-276X-7-360]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.titleDynamic viscosity measurement in non-Newtonian graphite nanofluidsen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen
dc.identifier.doihttp://dx.doi.org/10.1186/1556-276X-7-360en
dc.description.versionPublished versionen
item.grantfulltextopen-
item.fulltextWith Fulltext-
Appears in Collections:MAE Journal Articles
Files in This Item:
File Description SizeFormat 
1. Dynamic viscosity measurement in non-Newtonian graphite nanofluids.pdf1.39 MBAdobe PDFThumbnail
View/Open

Google ScholarTM

Check

Altmetric

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.