Controlled microtribology of a metal oxide surface

Alan Berman, Suzi Steinberg, Samuel Campbell, Abraham Ulman, Jacob Israelachvili

Research output: Contribution to journalArticle

Abstract

The rational control of the friction and wear (damage) of engineering, as opposed to model, surfaces under practical conditions such as high contact pressures has long been a technological challenge with much fundamental interest. Lubricant fluids and physisorbed surfactant monolayers (boundary lubricants) are effective friction modifiers but often fail at high loads. We show that the chemisorption of a suitably designed single-chained phosphonate surfactant onto crystalline α-alumina surfaces produces robust protective monolayers that significantly reduce the friction forces and wear even at high loads. The mechanisms are explained, which point to some general principles that offer a basis for scale-up in many different engineering systems.

Original languageEnglish (US)
Pages (from-to)43-48
Number of pages6
JournalTribology Letters
Volume4
Issue number1
StatePublished - 1998

Fingerprint

Oxides
metal oxides
friction
Metals
Friction
lubricants
Surface-Active Agents
Lubricants
Monolayers
Surface active agents
surfactants
Wear of materials
Organophosphonates
Aluminum Oxide
Chemisorption
Systems engineering
systems engineering
chemisorption
Alumina
aluminum oxides

Keywords

  • Friction modifier
  • Lubrication
  • Self-assembled monolayer
  • Wear

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Engineering(all)
  • Mechanical Engineering

Cite this

Berman, A., Steinberg, S., Campbell, S., Ulman, A., & Israelachvili, J. (1998). Controlled microtribology of a metal oxide surface. Tribology Letters, 4(1), 43-48.

Controlled microtribology of a metal oxide surface. / Berman, Alan; Steinberg, Suzi; Campbell, Samuel; Ulman, Abraham; Israelachvili, Jacob.

In: Tribology Letters, Vol. 4, No. 1, 1998, p. 43-48.

Research output: Contribution to journalArticle

Berman, A, Steinberg, S, Campbell, S, Ulman, A & Israelachvili, J 1998, 'Controlled microtribology of a metal oxide surface', Tribology Letters, vol. 4, no. 1, pp. 43-48.
Berman A, Steinberg S, Campbell S, Ulman A, Israelachvili J. Controlled microtribology of a metal oxide surface. Tribology Letters. 1998;4(1):43-48.
Berman, Alan ; Steinberg, Suzi ; Campbell, Samuel ; Ulman, Abraham ; Israelachvili, Jacob. / Controlled microtribology of a metal oxide surface. In: Tribology Letters. 1998 ; Vol. 4, No. 1. pp. 43-48.
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