Interfacial Viscosity Measurements of Adsorbed Monolayers on Metal Surfaces

Abstract

At this writing, the ONR award has been in effect for one year. We carried out the construction of a second deposition system and improvements on one of our existing gas adsorption systems. Upon completion of this work, she investigated the slipping behavior of several model liquid films adsorbed on silver and gold substrates. This work, presented at the most recent AVS meeting, provided us with an initial survey of the types of behavior which we will be encountering throughout the course of our investigations. This work has also demonstrated a general trend among monolayers: the lighter molecular weight films appear to slip for longer characteristic times. Was carried out studies of the interfacial viscosity of xenon and krypton films on Au(111). Our particular interest here was to map out temperature dependencies of the interfacial viscosities (sometimes referred to as coefficients of sliding friction) in order to allow future comparison with theory.

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Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1990
Accession Number
ADA221689

Entities

People

  • Jacqueline Krim

Organizations

  • Northeastern University

Tags

DTIC Thesaurus Topics

  • Computer Simulations
  • Crystal Oscillators
  • Diffusion Coefficient
  • Films
  • Friction
  • Materials
  • Materials Science
  • Measurement
  • Molecular Weight
  • Monomolecular Films
  • Oscillators
  • Phase Transformations
  • Physics
  • Simulations
  • Sliding Friction
  • Substrates
  • Transitions

Readers

  • Electrochemical Surface Science
  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).