Movement of dislocations in sodium chloride crystals in an electric field
| Autor: | K. M. Turner, R. W. Whitworth |
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| Rok vydání: | 1968 |
| Předmět: | |
| Zdroj: | Philosophical Magazine. 18:531-538 |
| ISSN: | 0031-8086 |
| DOI: | 10.1080/14786436808227458 |
| Popis: | A plastic strain has been produced by the application of a suitably directed electric field to a NaCl crystal containing edge dislocations of predominantly one mechanical sign. By comparing this strain with that produced by applying a stress to the same specimen the dislocation charge at room temperature was found to be about −3·8 × 10−13 C cm−1. A similar value was determined from the polarization produced in the specimen under stress. The results are consistent with the hypothesis that dislocations which carry a charge when they move under stress experience a force in an electric field arising from the action of the field on this same charge. |
| Databáze: | OpenAIRE |
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