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Title: Rheological profile of boron nitride–ethylene glycol nanofluids

The paper presents the complete rheological profile of boron nitride (BN)–ethylene glycol (EG) nanofluids. Nanofluids have been produced by two-step method on the basis of commercially available powder of plate-like grains of nanometrical thickness. Viscoelastic structure has been determined in oscillatory measurements at a constant frequency and temperature. Viscosity and flow curves for these materials have been measured. Studies have shown that the Carreau model can be used for the modeling of dynamic viscosity curves of the material. The samples were tested for the presence of thixotropy. The dependence of viscosity on temperature was also examined. The effect of temperature on the dynamic viscosity of BN-EG nanofluids can be modelled with the use of Vogel-Fulcher-Tammann expression.
Authors:
 [1] ; ;  [2]
  1. Department of Physics, Rzeszów University of Technology, Rzeszów (Poland)
  2. Department of Nanotechnology, Institute of Ceramics and Building Materials, Warsaw (Poland)
Publication Date:
OSTI Identifier:
22399212
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BORON NITRIDES; COMPUTERIZED SIMULATION; ELASTICITY; GLYCOLS; NANOFLUIDS; PHASE DIAGRAMS; PLATES; POWDERS; RHEOLOGY; TEMPERATURE DEPENDENCE; THIXOTROPY; VISCOSITY