DOI: 10.1063/1.1658479. Motion of a Screw Dislocation in a Crystal

Motion of a Screw Dislocation in a Crystal

10.1063/1.1658479

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

The problem of the uniform motion of a screw dislocation in a crystal is treated from the point of view of lattice dynamics. A simple model of cubic lattice with piecewise-linear nearest-neighbor interactions is considered in detail and the extension to more realistic interatomic forces is outlined. The external stress necessary to maintain the dislocation in uniform motion is computed as a function of dislocation velocity. This stress has a minimum at one-half of the sound velocity and motion is quite possible at hypersonic velocities. The calculations are at zero temperature, hence the only dissipative mechanism present is the emission of phonons by the core of the moving dislocation. The theory is relevant to high-velocity dislocation motion, which is not of the usual thermally activated type.

Bibliography

Celli, V., & Flytzanis, N. (1970). Motion of a Screw Dislocation in a Crystal. Journal of Applied Physics, 41(11), 4443â4447.

Authors 2

V. Celli (first)
N. Flytzanis (additional)

References 11 Referenced 101

10.1103/PhysRev.138.A763 / Phys. Rev. (1965)
{'key': '2024020202331724300_r2', 'first-page': '1', 'volume': '9', 'year': '1958', 'journal-title': 'J. Phys. Chem. Solids'} / J. Phys. Chem. Solids (1958)
10.1016/0022-3697(61)90062-2 / J. Phys. Chem. Solids (1961)
{'key': '2024020202331724300_r4'}
10.1016/0022-5096(63)90052-8 / J. Mech. Phys. Solids (1963)
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{'key': '2024020202331724300_r7a'}

Dates

Type	When
Created	21 years, 6 months ago (Feb. 9, 2004, 11:56 a.m.)
Deposited	1 year, 6 months ago (Feb. 1, 2024, 9:33 p.m.)
Indexed	2 weeks, 3 days ago (Aug. 12, 2025, 6:20 p.m.)
Issued	54 years, 10 months ago (Oct. 1, 1970)
Published	54 years, 10 months ago (Oct. 1, 1970)
Published Print	54 years, 10 months ago (Oct. 1, 1970)

Funders 0

None

BibTeX

@article{Celli_1970, title={Motion of a Screw Dislocation in a Crystal}, volume={41}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1658479}, DOI={10.1063/1.1658479}, number={11}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Celli, V. and Flytzanis, N.}, year={1970}, month=oct, pages={4443–4447} }

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