ON THE CONNECTION BETWEEN THERMAL CONDUCTIVITY AND DISLOCATION MOBILITY AT LOW TEMPERATURES,

Abstract

The low temperature dragging force on moving dislocations on account of phonon scattering is calculated with the help of phonon relaxation times which are available from the theory of thermal conductivity. It is assumed that the dislocations move uniformly with a velocity that is much smaller than sound velocity. Numerical values for the friction coefficient are obtained for straight edge and screw dislocations with the material constants of copper. The results are compared with the corresponding data for the case of moving kinks. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1969
Accession Number
AD0695500

Entities

People

  • Peter Gruner

Organizations

  • Boeing

Tags

DTIC Thesaurus Topics

  • Coefficients
  • Conductivity
  • Dislocations
  • Friction
  • Low Temperature
  • Materials
  • Mobility
  • Physical Properties
  • Relaxation Time
  • Scattering
  • Thermal Conductivity

Fields of Study

  • Materials science

Readers

  • Fluid Dynamics.
  • Materials Science and Engineering.