THERMAL DIFFUSION OF VACANCIES IN ZINC

Abstract

An apparatus was constructed which yields nearly linear temperature gradient for pure metal samples. Thermal diffusion of vacancies in pure zinc has been studied by use of a surface marker motion technique. Results compiled to date indicate that marker movement does exist when a temperature gradient is applied to a pure zinc crystal. Preliminary calculations of the total energy term associated with the flux equation yield a value of approximately -8.8 k cal/mole. In the future it is planned to investigate more thoroughly the role of surface tension in causing shape changes and thermal diffusion will be studied by the use of inert markers embedded in the sample.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1963
Accession Number
AD0408091

Entities

People

  • R. A. Swalin
  • W. C. Olander

Organizations

  • University of Minnesota

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Annealing
  • Coefficients
  • Crystals
  • Diffusion Coefficient
  • Energy
  • Equations Of Motion
  • Heat Energy
  • Heat Transfer
  • Heat Treatment
  • Materials
  • Measurement
  • Relative Motion
  • Surface Tension
  • Temperature Control
  • Temperature Gradients
  • Thermal Conductivity
  • Thermodynamics

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Molecular and genetic basis of cancer.
  • Thermal Physics or Thermal Science.