Dislocation Mobility in Aluminum
- 1 July 1972
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 43 (7) , 2982-2986
- https://doi.org/10.1063/1.1661644
Abstract
Dislocation velocities in aluminum were measured, using the etch‐pit technique of Gilman and Johnston, as a function of stress in the temperature region between liquid‐helium temperature and room temperature. The dislocation‐damping constant B was calculated at various temperatures from the linear portion of the velocity‐vs‐stress curve. The value of B decreases with decreasing temperature in the region from room temperature to 30°K. This result agrees with theoretical predictions of the dislocation damping produced by phonon‐dislocation interactions. Below 30°K the damping constant B increases with decreasing temperature. This latter result disagrees with the accepted theoretical predictions of dislocation damping produced by electron‐dislocation interactions.This publication has 20 references indexed in Scilit:
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