Abstract
Polycrystalline copper wires and tubes were plastically deformed in unidirectional and alternating twisting, and the induced thermal emf was determined. As the relative shear increases during unidirectional twisting, the thermal emf increases, passing through three stages analogous to the stages of hardening. A change in the sense of the deformation in any of the stages is accompanied by a corresponding removal of the thermal emf and the subsequent restoration of this emf to the value corresponding to the unidirectional twisting. Five stages were found in the increase of the thermal emf. The effects of the grain size and the deformation rate on the magnitude of the induced thermal emf were determined.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii Fizika, No. 3, pp. 79–83, March, 1971.
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Karelin, N.A., Rybalko, F.P. Induction and removal of thermal emf during static and alternating twisting. Soviet Physics Journal 14, 352–355 (1971). https://doi.org/10.1007/BF00822269
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DOI: https://doi.org/10.1007/BF00822269