Dislocations penetrating an Al/Si interface
نویسندگان
چکیده
منابع مشابه
A Pileup of Screw Dislocations against an Inclined Bimetallic Interface
Pileups of screw dislocations against an inclined bimetallic interface are considered. It is assumed that differently oriented pileups are either under the same remote uniform loading, or under the same resolved shear stress along the pileup direction for any orientation of the interface. The distributions of dislocations and the lengths of pileups are substantially different for differently or...
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A pileup of edge dislocations against an arbitrarily inclined flat bimetallic interface is considered. Equilibrium positions of dislocations are determined for a given number of dislocations and specified material properties, assuming that the resolved shear stress along the pileup plane from a remotely applied loading is uniform and equal for all interface inclination angles. Numerical results...
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The governing equation of screw dislocations in heterostructures is constructed using image method. The interface type (−1 ≤ γ ≤ 1) and distance between dislocation and interface h are considered in the new equation. The Peierls–Nabarro equations for screw dislocations in bulk and semi-infinite materials can be recovered when γ = 0 and γ = −1. The soft (γ < 0) and hard (γ > 0) interfaces can en...
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GaN layers grown by metal organic vapour phase epitaxy on sapphire were imaged by synchrotron radiation X-ray topography. The threading dislocations could not be resolved in the topographs due to their high density, but a smaller density of about 105 cm-2 misfit dislocations were seen in the interface between GaN and sapphire by using large-area backreflection topography. The misfit dislocation...
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Objective: There has been a worldwide rise in the prevalence of penetrating abdominal injury (PAI), and there are both inter-country and intra-country variations in frequencies. This study evaluates the mechanisms and pattern of penetrating abdominal injuries and the treatment outcome in our center.Methods: This descriptive study of adult patients managed for PAI was conducted at the Ekit...
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ژورنال
عنوان ژورنال: AIP Advances
سال: 2017
ISSN: 2158-3226
DOI: 10.1063/1.5008886