RT Journal Article
T1 Effect of ZrO2 nanoparticles on thermophysical and rheological properties of three synthetic oils
A1 García Guimarey, María Jesús
A1 Salgado, Miguel R.
A1 Pérez Comuñas, María José
A1 López Iglesias, Enriqueta
A1 Amigo Pombo, Alfredo José
A1 Cabaleiro, David
A1 Lugo, Luis
A1 Fernández Pérez, Josefa
K1 Synthetic oils
K1 ZrO2 nanoparticles
K1 Nanolubricants
K1 Adiabatic bulk modulus
K1 Density
K1 Rheology
AB This article presents an experimental study on some thermophysical properties (density, viscosity and adiabatic bulk modulus) of six nanolubricants based on synthetic oils and ZrO2 nanoparticles. Two-step method with ultrasonic disruptor was used to prepare the nanodispersions. The morphology, crystalline degree and elemental composition of nanoparticles were analyzed by electron microscopy. Visual observation, temporal variation of refractive index and dynamic light scattering were used to analyze the stability of the nanolubricants and the average size of the aggregates. The presence of new interactions between nanoparticles and base oils was studied through Fourier transform infrared spectrometer. Vibrating tube densimeters, rotational viscometer and rheometer equipped with cone-plate geometry were used within the temperature range from (278.15 to373.15) K. The ability of some theoretical simple models to predict densities and viscosities of these nanolubricants as a function of temperature and nanoparticle concentration was also checked.
PB Elsevier
SN 0167-7322
YR 2018
FD 2018-04-10
LK http://hdl.handle.net/10347/32101
UL http://hdl.handle.net/10347/32101
LA eng
NO María J.G. Guimarey, Miguel R. Salgado, María J.P. Comuñas, Enriqueta R. López, Alfredo Amigo, David Cabaleiro, Luis Lugo, Josefa Fernández, Effect of ZrO2 nanoparticles on thermophysical and rheological properties of three synthetic oils, Journal of Molecular Liquids, Volume 262, 2018, Pages 126-138, https://doi.org/10.1016/j.molliq.2018.04.027.
NO This workwas supported by Spanish Ministry of Economy and Competitiveness and the UE FEDERprogramme through ENE2014-55489-C2-1-R, ENE2014-55489-C2-2-R, ENE2017-86425-C2-1-R and ENE2017-86425-C2-2-R projects. Moreover, this work was funded by theXunta de Galicia (AGRUP2015/11 and GRC ED431C 2016/001). D.C. was recipient of apostdoctoral fellowship from Xunta de Galicia (Spain).
DS Minerva
RD 24 abr 2026