Avaliação tribológica de um lubrificante aditivado com nanopartículas de carbono amorfo
This work is focused on analysing the tribological influence of different dispersion values of amorphous carbon nanoparticles in a epoxidized soy-based oil. Four mass concentrations of the lubricant were evaluated, with 0%, 0,05%, 0,1% and 0,2% of nanoparticles. Tests were performed on a pin-on-d...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/37352 |
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| Resumo: | This work is focused on analysing the tribological influence of different dispersion
values of amorphous carbon nanoparticles in a epoxidized soy-based oil. Four
mass concentrations of the lubricant were evaluated, with 0%, 0,05%, 0,1% and
0,2% of nanoparticles. Tests were performed on a pin-on-disc tribometer during
sixty minutes with normal load of 100 N, at linear speed of 0,314 m/s, in which a
sphere ball, made of SAE 52100 steel, with 8 mm of diameter was pressed against
a 1045 steel disc. A high speed camera was used for evaluate the maintenance of
lubricante on the contact surface and its aspects during the tests. The results
showed that the addition of nanoparticles initially has a significant effect on the
friction coefficient of the lubricant, as well as on the lubricant heat transfer capacity. |
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