Novel carbon nanotori additives for lubricants with superior anti-wear and extreme pressure properties

Laura Peña-Parás*, Demófilo Maldonado-Cortés, Oxana V. Kharissova, Karla Itzel Saldívar, Luisana Contreras, Patsy Arquieta, Brenda Castaños

*Autor correspondiente de este trabajo

Producción científicarevisión exhaustiva

23 Citas (Scopus)

Resumen

In this work, new lubricants were prepared with carbon nanotori dispersed in distilled water (DW). Carbon nanotori are multi-walled carbon nanoparticles with a toroidal shape. The load-carrying capacity of nanolubricants under extreme pressures (EP) and their anti-wear (AW) properties were characterized. Carbon nanotori demonstrated significant improvements in load-carrying capacity, and excellent anti-wear and friction reducing properties. Load-carrying capacity increased by up to 950% with 2.0 wt%. Wear mass loss and coefficient of friction (COF) were reduced by 96% and 76%, respectively, at the same concentration. These improvements can be attributed to their hollow multi-walled toroidal shape and high elastic modulus that enabled them to withstand the loads of the tests, thus limiting metal-metal contact.

Idioma originalEnglish
Páginas (desde-hasta)488-495
Número de páginas8
PublicaciónTribology International
Volumen131
DOI
EstadoPublished - 1 mar 2019

All Science Journal Classification (ASJC) codes

  • Mecánica de materiales
  • Ingeniería mecánica
  • Superficies e interfaces
  • Superficies, recubrimientos y láminas

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