Dislocation-defect dragging in electron-irradiated copper over the temperature range 4. 2--350/sup 0/K. [Bordoni peak height]

Journal Article · Sun Jan 01 04:00:00 EST 1978 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.324320· OSTI ID:5281409

Sosin, A; Simpson, H M

The effects of electron irradiation on the Bordoni peak and on dislocation drag were investigated by means of internal friction and modulus defect measurements over the temperature range 4.2--350 /sup 0/K. These measurements were made during dynamic irradiations as a function of time and prior to and following irradiation as a function of temperature. It was found that (1) with a moderate dose irradiation the Bordoni peak height decreased 100-fold and (2) that a well-defined defect-dragging peak evolved during electron irradiation at 4.2 /sup 0/K. This peak is similar but somewhat subdued in height in comparison to the peak previously observed at room temperature by the authors. The reduction in the Bordoni peak height following irradiation is examined in terms of several existing kink models, as well as in terms of stress-assisted defect drag.

• Research Organization: The University of Utah, Salt Lake City, Utah 84112
• OSTI ID: 5281409
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 49:1; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
BEAMS
BORDONI PEAK
COPPER
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DISLOCATIONS
DRAG
ELECTRON BEAMS
ELEMENTS
FRICTION
INTERNAL FRICTION
IRRADIATION
LEPTON BEAMS
LINE DEFECTS
METALS
PARTICLE BEAMS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS