Structure in confined fluids: Phase separation of binary simple liquid mixtures

Joan E Curry, John H. Cushman

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

One- to five-layer cyclohexane and octamethyltetracyclosiloxane (OMCTS) films confined between mica-like surfaces are studied to elucidate changes in the lattice type and composition of the films. Grand canonical ensemble Monte Carlo computer simulations are used to study the laterally confined film. In contrast to previous studies, solid-like order is induced primarily by the strong fluid-solid interaction and is largely a function of pore width. Solid-like order within the layers causes the composition of the pore fluid to shift from the bulk composition, favoring either cyclohexane or OMCTS, depending on the pore width. A shift in the relative alignment of the surfaces perturbs the solid-like fluid structure but does not cause the sudden shear melting transition associated with epitaxial alignment of the fluid atoms with the surface.

Original languageEnglish (US)
Pages (from-to)129-136
Number of pages8
JournalTribology Letters
Volume4
Issue number2
StatePublished - 1998

Fingerprint

Phase separation
porosity
cyclohexane
liquid
Fluids
fluid
fluids
Liquids
Cyclohexane
liquids
alignment
fluid-solid interactions
causes
shift
Chemical analysis
mica
Mica
computerized simulation
melting
computer simulation

Keywords

  • Binary mixtures
  • Confined films
  • Monte Carlo computer simulation
  • Phase separation
  • Shear melting

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Structure in confined fluids : Phase separation of binary simple liquid mixtures. / Curry, Joan E; Cushman, John H.

In: Tribology Letters, Vol. 4, No. 2, 1998, p. 129-136.

Research output: Contribution to journalArticle

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