Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/46384
Title: The effect of aggregation on the viscosity of graphite nanofluids
Authors: Wong, Ting Foong.
Keywords: DRNTU::Engineering::Nanotechnology
Issue Date: 2011
Abstract: An experimental investigation is conducted on the effect of aggregation on the viscosity of graphite water-based nanofluids. The stability of nanofluids is characterized by using the sedimentation observation and UV-vis spectrophotometer measurement. Its stability was influenced by the characteristics between suspended nanoparticles and base fluid. For the viscosity measurements, the shear thinning effect, the increased effective viscosity and the dependent of temperature were observed in this experiment is caused by agglomeration. A transmission electron microscope (TEM) was then used to reveal the dispersion and morphology of nanoparticles in base fluids. The results show that there are a lot of clusters and agglomeration due to the high surface area interaction to attract each particle. Properties and structure in a molecule vibration of graphite nanofluids have been studied using the Raman spectroscopy. The Raman spectroscopy characterizes the D and G peaks position and relative intensity with number of graphite amount. This reflects the evolution of the electronic structure and electron–phonon interactions.
URI: http://hdl.handle.net/10356/46384
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:MAE Student Reports (FYP/IA/PA/PI)

Files in This Item:
File Description SizeFormat 
THE EFFECT OF AGGREGATION ON THE VISCOSITY OF GRAPHITE NANOFLUIDS.pdf
  Restricted Access
3.39 MBAdobe PDFView/Open

Page view(s) 20

464
checked on Oct 21, 2020

Download(s) 20

16
checked on Oct 21, 2020

Google ScholarTM

Check

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