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Thermal and Tribological Properties Enhancement of PVE Lubricant Modified with SiO(2) and TiO(2) Nanoparticles Additive

The addition of nanoparticles may have a positive or negative impact on the thermal and tribological properties of base lubricant. The objective of this paper is to investigate the effect of nanoparticle dispersion in lubricant base in relation to its application in refrigeration system compressors....

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Autores principales: Ismail, Mohd Farid, Azmi, Wan Hamzah, Mamat, Rizalman, Ali, Hafiz Muhammad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9823619/
https://www.ncbi.nlm.nih.gov/pubmed/36615952
http://dx.doi.org/10.3390/nano13010042
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author Ismail, Mohd Farid
Azmi, Wan Hamzah
Mamat, Rizalman
Ali, Hafiz Muhammad
author_facet Ismail, Mohd Farid
Azmi, Wan Hamzah
Mamat, Rizalman
Ali, Hafiz Muhammad
author_sort Ismail, Mohd Farid
collection PubMed
description The addition of nanoparticles may have a positive or negative impact on the thermal and tribological properties of base lubricant. The objective of this paper is to investigate the effect of nanoparticle dispersion in lubricant base in relation to its application in refrigeration system compressors. An investigation of tribological and thermal properties of nanolubricants for rolling piston rotary systems was carried out through four-ball tribology tests and thermal conductivity measurements. Nanolubricants dispersed with SiO(2) and TiO(2) nanoparticles were tested at various concentrations and temperatures. The changes in thermal conductivity and coefficient of friction (COF) were analyzed while wear weight loss was also calculated from wear scar size. A regression model of thermal conductivity enhancement was proposed for both types of nanoparticles. Zeta potential results show that nanolubricants have excellent stability. The thermal conductivity increases by the increment of nanoparticle concentration but decreases by temperature. The R-square for the regression model is more than 0.9952 with an average deviation not more than 0.29%. The COF for SiO(2)/PVE nanolubricant at 0.003 vol.% reduced 15% from the baseline. The COF for nanolubricants exceeds the result for base lubricants when the concentration is more than the threshold value. The optimum concentration of SiO(2) and TiO(2) nanoparticles improved the thermal and tribological properties of PVE lubricant and may offer an advantage when applied to refrigeration systems.
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spelling pubmed-98236192023-01-08 Thermal and Tribological Properties Enhancement of PVE Lubricant Modified with SiO(2) and TiO(2) Nanoparticles Additive Ismail, Mohd Farid Azmi, Wan Hamzah Mamat, Rizalman Ali, Hafiz Muhammad Nanomaterials (Basel) Article The addition of nanoparticles may have a positive or negative impact on the thermal and tribological properties of base lubricant. The objective of this paper is to investigate the effect of nanoparticle dispersion in lubricant base in relation to its application in refrigeration system compressors. An investigation of tribological and thermal properties of nanolubricants for rolling piston rotary systems was carried out through four-ball tribology tests and thermal conductivity measurements. Nanolubricants dispersed with SiO(2) and TiO(2) nanoparticles were tested at various concentrations and temperatures. The changes in thermal conductivity and coefficient of friction (COF) were analyzed while wear weight loss was also calculated from wear scar size. A regression model of thermal conductivity enhancement was proposed for both types of nanoparticles. Zeta potential results show that nanolubricants have excellent stability. The thermal conductivity increases by the increment of nanoparticle concentration but decreases by temperature. The R-square for the regression model is more than 0.9952 with an average deviation not more than 0.29%. The COF for SiO(2)/PVE nanolubricant at 0.003 vol.% reduced 15% from the baseline. The COF for nanolubricants exceeds the result for base lubricants when the concentration is more than the threshold value. The optimum concentration of SiO(2) and TiO(2) nanoparticles improved the thermal and tribological properties of PVE lubricant and may offer an advantage when applied to refrigeration systems. MDPI 2022-12-22 /pmc/articles/PMC9823619/ /pubmed/36615952 http://dx.doi.org/10.3390/nano13010042 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ismail, Mohd Farid
Azmi, Wan Hamzah
Mamat, Rizalman
Ali, Hafiz Muhammad
Thermal and Tribological Properties Enhancement of PVE Lubricant Modified with SiO(2) and TiO(2) Nanoparticles Additive
title Thermal and Tribological Properties Enhancement of PVE Lubricant Modified with SiO(2) and TiO(2) Nanoparticles Additive
title_full Thermal and Tribological Properties Enhancement of PVE Lubricant Modified with SiO(2) and TiO(2) Nanoparticles Additive
title_fullStr Thermal and Tribological Properties Enhancement of PVE Lubricant Modified with SiO(2) and TiO(2) Nanoparticles Additive
title_full_unstemmed Thermal and Tribological Properties Enhancement of PVE Lubricant Modified with SiO(2) and TiO(2) Nanoparticles Additive
title_short Thermal and Tribological Properties Enhancement of PVE Lubricant Modified with SiO(2) and TiO(2) Nanoparticles Additive
title_sort thermal and tribological properties enhancement of pve lubricant modified with sio(2) and tio(2) nanoparticles additive
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9823619/
https://www.ncbi.nlm.nih.gov/pubmed/36615952
http://dx.doi.org/10.3390/nano13010042
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