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  1. 1 Huili Z.

  2. 1 Shaofeng W.

  3. 1 Xiaozhi W.

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The dissociated properties of dislocation in two-dimensional triangular lattice

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Xiaozhi W., Shaofeng W., Huili Z.
Open Physics
|
2008
|
vol. 6
|
issue 3
440-444
EN
The dissociated core structure of dislocation in two-dimensional triangular lattice is determined by the variational method within lattice theory. The dissociation effect leads to a narrower core width of partial dislocations than the compact one. The equilibrium separation between two partial dislocations is not very sensitive to the intrinsic stacking fault energy and there exists deviation from the intrinsic stacking fault energy criterion in the continuous elastic theory of dislocation. The relationship between the equilibrium separation and intrinsic stacking fault energy is analogous in lattice theory and the Peierls-Nabarro model. But the equilibrium separation obtained in lattice theory is wider than that obtained in the Peierls-Nabarro model for the same intrinsic stacking fault energy.
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