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Special mechanism for dislocation nucleation in nanomaterials
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10.1063/1.2206095
/content/aip/journal/apl/88/21/10.1063/1.2206095
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/21/10.1063/1.2206095
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic representation of [(a)–(d)] standard homogeneous generation and extension of a gliding loop of perfect lattice dislocation with Burgers vector and [(e)–(h)] nonlocal homogeneous generation of a gliding loop of “noncrystallographic” partial dislocation with a finite size and small Burgers vector under an external shear stress . When increases and achieves the magnitude , the latter loop is transformed into a “normal” loop of partial lattice dislocation with Burgers vector ; with further increase of , it transforms into a normal loop of perfect lattice dislocation with Burgers vector .

Image of FIG. 2.
FIG. 2.

The plots of the energy differences (a) for the generation of a lattice dislocation loop and (b) for the generation of a grain boundary dislocation loop. The pairs denote the loop size and the applied shear stress value. The solid curves are calculated for the stacking fault energy value of (Ref. 22), while the dashed curves for that of (Ref. 23).

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/content/aip/journal/apl/88/21/10.1063/1.2206095
2006-05-22
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Special mechanism for dislocation nucleation in nanomaterials
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/21/10.1063/1.2206095
10.1063/1.2206095
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