Rheological profile of boron nitride–ethylene glycol nanofluids

Journal Article · Wed Jan 07 04:00:00 EST 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4903737· OSTI ID:22399212

Żyła, Gaweł ^[1]; Witek, Adam; Gizowska, Magdalena ^[2]

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1. Department of Physics, Rzeszów University of Technology, Rzeszów (Poland)
2. Department of Nanotechnology, Institute of Ceramics and Building Materials, Warsaw (Poland)

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.

• OSTI ID: 22399212
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 1 Vol. 117; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

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