Abstract
THE relative change of resistivity (Δρ/ρ) with plastic deformation at liquid-air temperature has been measured on several materials. Wires of copper, silver and aluminium which had been soft-annealed were stretched. The tension producing the extension as well as the resistivity were measured. The tension was removed after extension, and the resistivity was measured when there was no stress on the wire. The tension was then applied and increased so as to produce further plastic deformation. At an extension of approximately 10 per cent, the wire was removed from the liquid air and allowed to warm up to room temperature or heated to a higher temperature. The wire was then again placed in liquid air and the resistivity measured. The tension required to produce further plastic deformation was then determined as well as the resulting change of resistivity Δρ/ρ.
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References
Sondheimer and Mackenzie, Phys. Rev., 77, 264 (1950).
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MOLENAAR, J., AARTS, W. Change of Resistivity by Cold Working at Liquid-Air Temperature. Nature 166, 690 (1950). https://doi.org/10.1038/166690a0
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DOI: https://doi.org/10.1038/166690a0
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