A Caltech Library Service

Dislocation Mobility in Copper

Greenman, W. Frank and Vreeland, Thad, Jr. and Wood, David S. (1967) Dislocation Mobility in Copper. Journal of Applied Physics, 38 (9). pp. 3595-3603. ISSN 0021-8979. doi:10.1063/1.1710178.

PDF - Published Version
See Usage Policy.

[img] PDF (Figures) - Supplemental Material
See Usage Policy.

[img] PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


The velocity of dislocations of mixed edge-screw type in copper crystals of 99.999% purity has been measured as a function of stress at room temperature. Dislocation displacements produced by torsion stress pulses of microsecond duration were detected by etch pitting {100} surfaces. A nearly linear relationship between dislocation velocity and resolved shear stress was found. Stresses from 2.8×10^6 to 23.1×10^6 dyn/cm^2 produced velocities from 160 to 710 cm/sec. These data give a value of the damping constant for high-velocity dislocations of 7×10^(-4) dyn·sec/cm^2, in good agreement with the values deduced from internalfriction measurements. The results also agree, within experimental and theoretical uncertainties, with the phonon viscosity model for the mobility of dislocations.

Item Type:Article
Related URLs:
URLURL TypeDescription
Additional Information:© 1967 The American Institute of Physics. Received 8 March 1967. This work was supported by the U.S. Atomic Energy Commission.
Funding AgencyGrant Number
Atomic Energy CommissionUNSPECIFIED
Issue or Number:9
Record Number:CaltechAUTHORS:GREjap67
Persistent URL:
Official Citation:Dislocation Mobility in Copper Greenman, W. Frank and Vreeland, Thad and Wood, David S., Journal of Applied Physics, 38, 3595-3603 (1967), DOI:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12112
Deposited By: Archive Administrator
Deposited On:23 Oct 2008 20:52
Last Modified:08 Nov 2021 22:25

Repository Staff Only: item control page