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

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4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)488-495
Number of pages8
JournalTribology International
Volume131
DOIs
Publication statusPublished - 1 Mar 2019

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All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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