Zobrazeno 1 - 10
of 73
pro vyhledávání: '"O. Seabra"'
Publikováno v:
Lubricants, Vol 12, Iss 3, p 87 (2024)
The aim of this research is studying the tribological performance of MoO3, MoS2, WS2 and WC nanoparticles as additives of PAO4. Pure sliding tribological tests were performed at 120 °C, finding outstanding friction and wear reductions in comparison
Externí odkaz:
https://doaj.org/article/11edb526eb134e63983bf548cb27705e
Autor:
José M. Liñeira del Río, Carlos M. C. G. Fernandes, David E. P. Gonçalves, Jorge H. O. Seabra
Publikováno v:
Lubricants, Vol 12, Iss 2, p 58 (2024)
This research shows the antifriction and antiwear synergies between a phosphonium ionic liquid (IL) and f-WS2 and f-SiO2 nanoparticles (NPs) as additives of a base oil with low viscosity (PAO6). Mass concentrations of 0.1 wt% nanoadditives and 1% IL
Externí odkaz:
https://doaj.org/article/221267ac075d422bbc417e59c7f200d3
Autor:
Xavier Paredes, José M. Liñeira del Río, David E. P. Gonçalves, María J. G. Guimarey, María J. P. Comuñas, Jorge H. O. Seabra, Josefa Fernández
Publikováno v:
Industrial & Engineering Chemistry Research. 61:8346-8356
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7caa26af4a208ae65050e514dca9ae2
https://doi.org/10.1021/acs.iecr.2c00915
https://doi.org/10.1021/acs.iecr.2c00915
Autor:
José M. Liñeira del Río, Enriqueta R. López, Manuel González Gómez, Susana Yáñez Vilar, Yolanda Piñeiro, José Rivas, David E. P. Gonçalves, Jorge H. O. Seabra, Josefa Fernández
Publikováno v:
Nanomaterials, Vol 10, Iss 4, p 683 (2020)
The main task of this work is to study the tribological performance of nanolubricants formed by trimethylolpropane trioleate (TMPTO) base oil with magnetic nanoparticles coated with oleic acid: Fe3O4 of two sizes 6.3 nm and 10 nm, and Nd alloy compou
Externí odkaz:
https://doaj.org/article/8372223bd7e9455da73432e52bc53fe3
Publikováno v:
Applied Sciences, Vol 10, Iss 4, p 1477 (2020)
The applications of biogenic lubricating greases to machine elements play important roles in the reduction of friction energy and minimizing wear in a tribological contact, as well as the prevention of environmental pollution. The aim of this work wa
Externí odkaz:
https://doaj.org/article/8534aad263d54d5b9e2a3ddb814f8005
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 236:1336-1349
Nowadays, grease lubrication is frequently used in rolling element applications such as bearings or constant velocity joints. The advantage of grease is to supply lubrication to the application without leaking thanks to its consistency. Nevertheless,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f7afbf9d63c0ffc017e6debc61572d1
https://doi.org/10.1177/13506501211059341
https://doi.org/10.1177/13506501211059341
Publikováno v:
Mechanical Sciences, Vol 6, Iss 2, Pp 81-88 (2015)
In order to accurately predict the power loss generated by a meshing gear pair the gear loss factor must be properly evaluated. Several gear loss factor formulations were compared, including the author's approach. A gear loss factor calculated consi
Externí odkaz:
https://doaj.org/article/0a42b64dfe4c45ad85fb38c21971f5b2
Publikováno v:
Journal of Tribology. 144
This work studies the power loss in a real axle box gear transmission under no-load operating conditions. The influence of the rotational speed and of the lubricant viscosity was considered. An experimental strategy was adopted in order to measure th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b926807abf495da82f16a1e3ca919d53
https://doi.org/10.1115/1.4054101
https://doi.org/10.1115/1.4054101
Publikováno v:
Lubricants, Vol 6, Iss 3, p 82 (2018)
The film thickness of a ball-on-disc contact lubricated with four greases of different formulations was measured under different operating conditions until starvation. Two polymer-thickened greases and two lithium-thickened greases, formulated with b
Externí odkaz:
https://doaj.org/article/b5424785fd7340568c0d867f40662994
