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Mobility of Edge Dislocations in the Basal‐Slip System of Zinc

Pope, D. P. and Vreeland, T., Jr. and Wood, D. S. (1967) Mobility of Edge Dislocations in the Basal‐Slip System of Zinc. Journal of Applied Physics, 38 (10). pp. 4011-4018. ISSN 0021-8979.

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This paper presents the results of measurements of the velocities of 〈1210〉 (0001) edge dislocations in zinc as a function of applied shear stress. All tests were conducted at room temperature on 99.999% pure zinc monocrystals. Dislocations were revealed by means of the Berg‐Barrett x‐ray technique. Stress pulses of microsecond duration were applied to the test specimens by means of a torsion testing machine. Applied resolved shear stresses ranged from 0 to 17.2×10^6 dyn∕cm^2 and measured dislocation velocities ranged from 40–700 cm∕sec. The results of this study indicate that the velocity of edge dislocations in the basal slip system of zinc is linearly proportional to the applied resolved shear stress. These results are analyzed in terms of the phonon drag theory. Agreement between this theory and the results reported here is quite good.

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Additional Information:© 1967 American Institute of Physics. Received 28 April 1967. This work was supported by the U.S. Atomic Energy Commission. CALT 473-15.
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Atomic Energy CommissionUNSPECIFIED
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Issue or Number:10
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Official Citation:Mobility of Edge Dislocations in the Basal-Slip System of Zinc D. P. Pope, T. Vreeland, Jr., and D. S. Wood, J. Appl. Phys. 38, 4011 (1967), DOI:10.1063/1.1709058
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34267
Deposited By: Jason Perez
Deposited On:20 Sep 2012 23:18
Last Modified:03 Oct 2019 04:17

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