Thermal transport and tribological properties of nanogreases for metal-mechanic applications

Laura Peña Parás, Jaime Taha-Tijerina, Demófilo Maldonado Cortés, Andres Garcia, A Najera, Pablo Cantú, D Ortiz

Resultado de la investigaciónrevisión exhaustiva

22 Citas (Scopus)


This study investigates the effect of incorporating nanoparticles - TiO2, Al2O3, CuO, and multi-walled carbon nanotubes (MWNTs) - within greases Mobilgrease 28 and Uniflor 8623B on their thermal transport and tribological properties. Nanoparticle filler fractions, varying from 0.01 to 0.10wt%, were homogeneously dispersed within selected greases. Two tribological tests were performed on a four-ball tribotester; ASTM D5183, and the ITeEPib Polish method for testing lubricants under scuffing conditions. Anti-wear properties resulted in up to 20% wear scar diameter (WSD) reduction using a very low filler fraction of 0.01wt% TiO2. For the extreme pressure test, the increase on the load-carrying capacity was found to be ~19% with a filler fraction of 0.05wt% CuO. A guarded hot-plate method-based apparatus was used in order to characterize thermal conductivity of nanogreases, showing an enhancement of ~28% in thermal conductivity with the addition of 0.10wt% MWNTs. These results demonstrate the potential of nanoparticle additives for improving thermal properties of greases while decreasing friction and wear of mechanical components.

Idioma originalEnglish
Páginas (desde-hasta)1322-1326
Número de páginas5
N.ºMay - June
EstadoPublished - 1 may 2015

All Science Journal Classification (ASJC) codes

  • Física de la materia condensada
  • Mecánica de materiales
  • Superficies e interfaces
  • Superficies, recubrimientos y láminas
  • Química de los materiales


Profundice en los temas de investigación de 'Thermal transport and tribological properties of nanogreases for metal-mechanic applications'. En conjunto forman una huella única.

Citar esto