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- J. R. Patel
- Bell Telephone Laboratories, Murray Hill, New Jersey 07974
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- P. E. Freeland
- Bell Telephone Laboratories, Murray Hill, New Jersey 07974
説明
<jats:p>Dislocation velocities have been measured on loops whose Burgers vectors have been determined by x-ray topography. The new measurements do not agree with earlier work; the reasons for the discrepancy are discussed. The earlier work was also in error because of an incorrect assumption about the Burgers vector of the dislocations. The measured velocity-stress behavior falls into two distinct stress regimes. At low stresses the dislocation velocity depends more strongly on stress than in the high-stress region. The activation energy for dislocation motion depends on stress and varies from 2.9 to 1.5 eV over the stress range 0.6–8 kg/mm2.</jats:p>
収録刊行物
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- Journal of Applied Physics
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Journal of Applied Physics 42 (9), 3298-3303, 1971-08-01
AIP Publishing