The Isotope Exchange Method for Measuring Saturated Vapor Pressure and Diffusion coefficients - USSR -

Abstract

The interest displayed recently in the measurements of saturated steam pressures and diffusion coefficients D by means of isotope exchange is not accidental, since this exchange is the only convenient method which permits the determination of the buoyancy of the saturated vapors of alloys where the concentration of a component during the experiment should remain constant. This method permits, at the same time, the determination of the other, not less important characteristic of the metal or alloy, its diffusion coefficient. This fact, namely that the surface layer of a specific thickness participates directly in the exchange permits the estimation of some surface properties of the given substance if the appropriate equations are solved. The availability of convenient radioactive isotopes of almost all elements of the periodic table makes this method universally applicable to the practical study of any substance in its condensed state.

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Document Details

Document Type
Technical Report
Publication Date
Jun 16, 1960
Accession Number
ADA333566

Entities

People

  • V. I. Lozgachev

Organizations

  • Joint Publications Research Service

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accumulators
  • Buoyancy
  • Coefficients
  • Diffusion Coefficient
  • Equations
  • Evaporation
  • Evaporators
  • Flow
  • Gas Flow
  • Isotope Exchange
  • Measurement
  • Physical Chemistry
  • Steady State
  • Surface Properties
  • Thickness
  • Vapor Pressure
  • Vapors

Readers

  • Calculus or Mathematical Analysis
  • Materials Science and Engineering.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers