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Experimental determination of the line energy of a basal screw dislocation in zinc

Nagata, N. and Jassby, K. M. and Vreeland, T., Jr. (1980) Experimental determination of the line energy of a basal screw dislocation in zinc. Philosophical Magazine A, 41 (6). pp. 829-841. ISSN 0141-8610. doi:10.1080/01418618008243891.

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The critical breakaway stress has been measured for basal edge dislocations in zinc with strongly pinned ends and initial lengths which varied from 50 to 250 μm. A line energy of 4.5 eV/atom distance is deduced from these measurements for a screw-orientated dislocation which is parallel to, and approximately 2 μm below, a free surface. Core energy parameters are calculated from a knowledge of the total energy and the energy in the linear elastic strain field.

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Additional Information:© 1980 Taylor & Francis Ltd. Received 6 August 1979 and accepted 1 October 1979. This work was supported by the National Science Foundation. Preliminary experiments were supported by the U.S. Atomic Energy Commission. The authors wish to commend Mr. A. Illig for careful attention to crystal growth and preparation, and for the photographic work of this investigation. The experimental work of Mr. Wolfgang F. J. Deeg, who obtained the data at 130 K, is gratefully acknowledged.
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Atomic Energy CommissionUNSPECIFIED
Issue or Number:6
Record Number:CaltechAUTHORS:20150126-133956775
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54087
Deposited By: Tony Diaz
Deposited On:26 Jan 2015 21:50
Last Modified:10 Nov 2021 20:29

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