Effects of substrate surface roughness and nano/micro particle additive size on friction and wear in lubricated sliding

Laura Peña-Parás, Hongyu Gao, Demófilo Maldonado-Cortés, Azhar Vellore, Patricio García-Pineda, Oscar E. Montemayor, Karen L. Nava, Ashlie Martini

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Macroscopic wear experiments were complemented by atomistic simulations to study the effect of nano- and micro-scale titanium dioxide particle lubricant additives on friction and wear. The size of the particles and initial roughness of the sliding surfaces were varied to characterize the interrelated effects of these two properties. Results from both experiments and simulations suggest that there is an optimal particle size that will minimize friction and wear for a given surface roughness. Analyses support a previously-proposed mechanism for particle-based additives in which the particles fill in valleys on the sliding surfaces. In this context, particles that are smaller than the characteristic roughness of the surfaces are most likely to perform this function.

Original languageEnglish
Pages (from-to)88-98
Number of pages11
JournalTribology International
Volume119
DOIs
Publication statusPublished - 1 Mar 2018

Fingerprint

sliding
surface roughness
friction
Surface roughness
Wear of materials
Friction
Substrates
Titanium dioxide
Lubricants
roughness
Experiments
Particle size
lubricants
titanium oxides
valleys
simulation
titanium dioxide

All Science Journal Classification (ASJC) codes

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

Cite this

Peña-Parás, Laura ; Gao, Hongyu ; Maldonado-Cortés, Demófilo ; Vellore, Azhar ; García-Pineda, Patricio ; Montemayor, Oscar E. ; Nava, Karen L. ; Martini, Ashlie. / Effects of substrate surface roughness and nano/micro particle additive size on friction and wear in lubricated sliding. In: Tribology International. 2018 ; Vol. 119. pp. 88-98.
@article{ec6a8ba2a08f47af9b2d9388a6f34d24,
title = "Effects of substrate surface roughness and nano/micro particle additive size on friction and wear in lubricated sliding",
abstract = "Macroscopic wear experiments were complemented by atomistic simulations to study the effect of nano- and micro-scale titanium dioxide particle lubricant additives on friction and wear. The size of the particles and initial roughness of the sliding surfaces were varied to characterize the interrelated effects of these two properties. Results from both experiments and simulations suggest that there is an optimal particle size that will minimize friction and wear for a given surface roughness. Analyses support a previously-proposed mechanism for particle-based additives in which the particles fill in valleys on the sliding surfaces. In this context, particles that are smaller than the characteristic roughness of the surfaces are most likely to perform this function.",
author = "Laura Pe{\~n}a-Par{\'a}s and Hongyu Gao and Dem{\'o}filo Maldonado-Cort{\'e}s and Azhar Vellore and Patricio Garc{\'i}a-Pineda and Montemayor, {Oscar E.} and Nava, {Karen L.} and Ashlie Martini",
year = "2018",
month = "3",
day = "1",
doi = "10.1016/j.triboint.2017.09.009",
language = "English",
volume = "119",
pages = "88--98",
journal = "Tribology International",
issn = "0301-679X",
publisher = "Elsevier Inc.",

}

Effects of substrate surface roughness and nano/micro particle additive size on friction and wear in lubricated sliding. / Peña-Parás, Laura; Gao, Hongyu; Maldonado-Cortés, Demófilo; Vellore, Azhar; García-Pineda, Patricio; Montemayor, Oscar E.; Nava, Karen L.; Martini, Ashlie.

In: Tribology International, Vol. 119, 01.03.2018, p. 88-98.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effects of substrate surface roughness and nano/micro particle additive size on friction and wear in lubricated sliding

AU - Peña-Parás, Laura

AU - Gao, Hongyu

AU - Maldonado-Cortés, Demófilo

AU - Vellore, Azhar

AU - García-Pineda, Patricio

AU - Montemayor, Oscar E.

AU - Nava, Karen L.

AU - Martini, Ashlie

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Macroscopic wear experiments were complemented by atomistic simulations to study the effect of nano- and micro-scale titanium dioxide particle lubricant additives on friction and wear. The size of the particles and initial roughness of the sliding surfaces were varied to characterize the interrelated effects of these two properties. Results from both experiments and simulations suggest that there is an optimal particle size that will minimize friction and wear for a given surface roughness. Analyses support a previously-proposed mechanism for particle-based additives in which the particles fill in valleys on the sliding surfaces. In this context, particles that are smaller than the characteristic roughness of the surfaces are most likely to perform this function.

AB - Macroscopic wear experiments were complemented by atomistic simulations to study the effect of nano- and micro-scale titanium dioxide particle lubricant additives on friction and wear. The size of the particles and initial roughness of the sliding surfaces were varied to characterize the interrelated effects of these two properties. Results from both experiments and simulations suggest that there is an optimal particle size that will minimize friction and wear for a given surface roughness. Analyses support a previously-proposed mechanism for particle-based additives in which the particles fill in valleys on the sliding surfaces. In this context, particles that are smaller than the characteristic roughness of the surfaces are most likely to perform this function.

UR - http://www.scopus.com/inward/record.url?scp=85032827502&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85032827502&partnerID=8YFLogxK

U2 - 10.1016/j.triboint.2017.09.009

DO - 10.1016/j.triboint.2017.09.009

M3 - Article

VL - 119

SP - 88

EP - 98

JO - Tribology International

JF - Tribology International

SN - 0301-679X

ER -