A note on the quantum mechanical treatment of lattice distortion around a dislocation

Vítek, V.

doi:10.1007/bf01688854

Czech J Phys

1966

DOI: 10.1007/bf01688854

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A note on the quantum mechanical treatment of lattice distortion around a dislocation

V. Vítek

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1970

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Dislocations and stacking faults

1970

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Contents1. Geometrical properties of dislocations 7. W. Christian and V. Vz'tek atomistic or core properties of dislocations, and the dynamics of moving dislocations. General methods for finding the elastic field of an arbitrary dislocation loop are outlined, and the results of some recent calculations using anisotropic elasticity are summarized. These include the prediction, partially confirmed by experiment, that dislocations in certain ranges of orientation may have negative line tension. T h e current importance of atomistic calculations of core structure and related problems is emphasized, and the methods available for these calculations are discussed.More detailed descriptions of dislocation and stacking fault configurations are given for some of the common crystal structures, and recent work on complex defects resulting from vacancy aggregation in close-packed structures is included. The experimental and theoretical evidence for the recent conclusion that screw dislocations in body-centred cubic metals have an asymmetric core is also reviewed.'I'he rather controversial theory of thermally activated dislocation motion is described in a separate section, and examples are given of the application of this theory to various models of the obstacles encountered by moving dislocations. The final section is concerned with the theory of dislocations in grain boundaries and interphase boundaries, and includes the concept of the surface dislocation tensor.

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Dislocations and stacking faults

1970

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A note on the quantum mechanical treatment of lattice distortion around a dislocation

Cited by 1 publication

References 4 publications

Dislocations and stacking faults

Dislocations and stacking faults

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