Boundary Lubrication Properties of Materials with Expansive Freezing

E. A. Jagla
Phys. Rev. Lett. 88, 245504 – Published 3 June 2002
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Abstract

We have performed molecular dynamics simulations of solid-solid contacts lubricated by a model fluid displaying many of the properties of water, particularly its expansive freezing. Near the region where expansive freezing occurs, the lubricating film remains fluid, and the friction force decreases linearly as the shear velocity is reduced. No sign of stick-slip motion is observed, even at the lowest velocities. We give a simple interpretation of these results, and suggest that, in general, good boundary lubrication properties will be found in the family of materials with expansive freezing.

  • Received 6 December 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.245504

©2002 American Physical Society

Authors & Affiliations

E. A. Jagla

  • Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica, 8400 S.C. de Bariloche, Argentina

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Issue

Vol. 88, Iss. 24 — 17 June 2002

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