Ionizing radiation effects on the ionic conductivity of NaCl

Gamma irradiation or plastic deformation reduces the ionic conductivity of NaCl single crystals because of the decrease of the extrinsic cation vacancy concentration. Two steps in the thermal recovery of this vacancy concentration have been observed to occur between 200°C and 620°C in pulsed thermal...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 1998-03, Vol.245 (3), p.219-224
Main Authors: Mariani, D.F, González, F, Jiménez de Castro, M
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Conductivity of specific materials
Diffusion in solids
Electronic transport in condensed matter
Exact sciences and technology
Gamma irradiation
Insulators
Ionic conductivity
Physical radiation effects, radiation damage
Physics
Plastic deformation
Self-diffusion and ionic conduction in nonmetals
Sodium chloride
Structure of solids and liquids
crystallography
Transport properties of condensed matter (nonelectronic)
γ ray effects
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Summary:Gamma irradiation or plastic deformation reduces the ionic conductivity of NaCl single crystals because of the decrease of the extrinsic cation vacancy concentration. Two steps in the thermal recovery of this vacancy concentration have been observed to occur between 200°C and 620°C in pulsed thermal annealing experiments. The ascription of these effects to dislocations and divacancy clusters acting as traps for the impurity-cation vacancy dipoles is discussed.
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(97)00885-5