INFLUENCE OF DEFORMATION AND TEMPERATURE ON THE COBALT GAMMA IRRADIATION OF SODIUM CHLORIDE. EVIDENCE FOR ELECTRICAL INTERACTION BETWEEN DISLOCATIONS AND POINT DEFECTS
- Resource Type
- Journal Article
- Authors
- Source
- Journal of Applied Physics (U.S.); Vol: 32; Other Information: Orig. Receipt Date: 31-DEC-61
- Subject
- METALS, CERAMICS, AND OTHER MATERIALS ABSORPTION
COBALT 60
CRYSTALS
DEFECTS
DEFORMATION
DISTRIBUTION
EXCITATION
GAMMA RADIATION
INTERACTIONS
IRRADIATION
LATTICES
LOW TEMPERATURE
MEASURED VALUES
RADIATION EFFECTS
SODIUM CHLORIDES
TEMPERATURE
ULTRASONICS
- Language
- English
- ISSN
- 0021-8979
Ultrasonic attenuation measurements in sodium chloride as a function of Co/sup 60/ gamma irradiation show no appreciable dependence on temperature in the temperature range from room temperature to liquid nitrogen temperature, hence no appreciable thermal activation energy for the process of immobilizing the dislocations. The influence of plastic deformation on the attenuation- irradiation behavior is large; the greater the deformation the more rapid the attenuation change, at least in the deformation range from zero to one percent deformation. The consequences of these effects are discussed in terms of boundary conditions on possible mechanisms for the observed effects. (auth)