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Dependence of viscosity of suspensions of ceramic nanopowders in ethyl alcohol on concentration and temperature

This work presents results of measurements of viscosity of suspensions including yttrium oxide (Y(2)O(3)), yttrium aluminum garnet (Y(3)Al(5)O(12)) and magnesium aluminum spinel (MgAl(2)O(4)) nanopowders in ethanol. Nanoparticles used in our research were either commercially available (Baikowski) or...

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Detalles Bibliográficos
Autores principales: Żyła, Gaweł, Cholewa, Marian, Witek, Adam
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3502473/
https://www.ncbi.nlm.nih.gov/pubmed/22824064
http://dx.doi.org/10.1186/1556-276X-7-412
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author Żyła, Gaweł
Cholewa, Marian
Witek, Adam
author_facet Żyła, Gaweł
Cholewa, Marian
Witek, Adam
author_sort Żyła, Gaweł
collection PubMed
description This work presents results of measurements of viscosity of suspensions including yttrium oxide (Y(2)O(3)), yttrium aluminum garnet (Y(3)Al(5)O(12)) and magnesium aluminum spinel (MgAl(2)O(4)) nanopowders in ethanol. Nanoparticles used in our research were either commercially available (Baikowski) or nanopowders newly developed in the Institute of Ceramics and Building Materials in Warsaw, Poland. The study was conducted in a wide range of shear rates (0.01 to 2,000 s(−1)) and temperature interval from -15°C to 20°C. A Haake Mars 2 rheometer from Thermo Fisher, Germany, was used in the Biophysics Laboratory at Rzeszów University of Technology. Most of the samples show a non-Newtonian behaviour. It was confirmed with a Rheo-NMR system from Bruker that 10% by weight of Y(2)O(3) suspension is a non-Newtonian fluid. In this work, we also report an unexpected behaviour of the viscosity of some samples (Y(2)O(3) and Y(3)Al(5)O(12)) due to sedimentation effect.
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spelling pubmed-35024732012-11-21 Dependence of viscosity of suspensions of ceramic nanopowders in ethyl alcohol on concentration and temperature Żyła, Gaweł Cholewa, Marian Witek, Adam Nanoscale Res Lett Nano Express This work presents results of measurements of viscosity of suspensions including yttrium oxide (Y(2)O(3)), yttrium aluminum garnet (Y(3)Al(5)O(12)) and magnesium aluminum spinel (MgAl(2)O(4)) nanopowders in ethanol. Nanoparticles used in our research were either commercially available (Baikowski) or nanopowders newly developed in the Institute of Ceramics and Building Materials in Warsaw, Poland. The study was conducted in a wide range of shear rates (0.01 to 2,000 s(−1)) and temperature interval from -15°C to 20°C. A Haake Mars 2 rheometer from Thermo Fisher, Germany, was used in the Biophysics Laboratory at Rzeszów University of Technology. Most of the samples show a non-Newtonian behaviour. It was confirmed with a Rheo-NMR system from Bruker that 10% by weight of Y(2)O(3) suspension is a non-Newtonian fluid. In this work, we also report an unexpected behaviour of the viscosity of some samples (Y(2)O(3) and Y(3)Al(5)O(12)) due to sedimentation effect. Springer 2012-07-23 /pmc/articles/PMC3502473/ /pubmed/22824064 http://dx.doi.org/10.1186/1556-276X-7-412 Text en Copyright ©2012 Żyła et al.; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Żyła, Gaweł
Cholewa, Marian
Witek, Adam
Dependence of viscosity of suspensions of ceramic nanopowders in ethyl alcohol on concentration and temperature
title Dependence of viscosity of suspensions of ceramic nanopowders in ethyl alcohol on concentration and temperature
title_full Dependence of viscosity of suspensions of ceramic nanopowders in ethyl alcohol on concentration and temperature
title_fullStr Dependence of viscosity of suspensions of ceramic nanopowders in ethyl alcohol on concentration and temperature
title_full_unstemmed Dependence of viscosity of suspensions of ceramic nanopowders in ethyl alcohol on concentration and temperature
title_short Dependence of viscosity of suspensions of ceramic nanopowders in ethyl alcohol on concentration and temperature
title_sort dependence of viscosity of suspensions of ceramic nanopowders in ethyl alcohol on concentration and temperature
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3502473/
https://www.ncbi.nlm.nih.gov/pubmed/22824064
http://dx.doi.org/10.1186/1556-276X-7-412
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