Dislocations in solids
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This article is published in Acta Crystallographica Section A.The article was published on 1989-07-01 and is currently open access. It has received 345 citations till now.read more
Citations
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Imaging dislocation cores – the way forward
John C. H. Spence,H. R. Kolar,Gary G. Hembree,Colin J. Humphreys,Jonathan S. Barnard,Ranjan Datta,Christoph Koch,Frances M. Ross,João F. Justo +8 more
TL;DR: In this paper, forbidden reflection lattice images recorded in an ultra-high vacuum TEM in projections normal to the dislocation line could provide interpretable images of cores at atomic resolution.
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The concept of quasi-Fermi level and expansion of faulted loops in SiC under minority carrier injection
TL;DR: In this paper, the authors used the concept of quasi-Fermi energy to get a better understanding of faulted loop expansion in 4HSiC bipolar devices and in virgin 4H- and 6H-SiC crystals.
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Weakly Nonlinear Theory of Grain Boundary Motion in Patterns with Crystalline Symmetry
Denis Boyer,Jorge Viñals +1 more
TL;DR: The motion of a grain boundary separating two otherwise stationary domains of hexagonal symmetry is studied to find that defect motion is generically opposed by a pinning force that arises from nonadiabatic corrections to the standard amplitude equations.
Journal Article
A Generalized Peierls-Nabarro Model for Curved Dislocations Using Discrete Fourier Transform
He Wei,Yang Xiang,Pingbing Ming +2 more
TL;DR: In this article, a generalized Peierls-Nabarro model for curved dislocations using the discrete Fourier transform is presented. But the model is not suitable for crystal with simple cubic lattice.
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Molecular dynamics study on the grain boundary dislocation source in nanocrystalline copper under tensile loading
TL;DR: In this article, the authors conducted molecular dynamics simulations to study the dislocation nucleation from copper bicrystal with a number of?1 1 0? tilt GBs that covered a wide range of misorientation angles.
References
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The conflicts between strength and toughness
TL;DR: This work focuses on the interplay between the mechanisms that individually contribute to strength and toughness, noting that these phenomena can originate from very different lengthscales in a material's structural architecture.
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Strong crystal size effect on deformation twinning
TL;DR: A ‘stimulated slip’ model is developed to explain the strong size dependence of deformation twinning in crystals, and the sample size in transition is relatively large and easily accessible in experiments, making the understanding of size dependence relevant for applications.
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Atomistic modeling of interfaces and their impact on microstructure and properties
Yuri Mishin,Mark Asta,Ju Li +2 more
TL;DR: An overview of the most recent developments in the area of atomistic modeling with emphasis on interfaces and their impact on microstructure and properties of materials is given in this paper, along with some challenges and future research directions in this field.
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A review on fundamental of high entropy alloys with promising high–temperature properties
TL;DR: In this paper, the microstructures of HESAs consisting of γ and γ′ phases are similar to that of Ni-base superalloys and refractory HEAs.
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Heterostructured materials: superior properties from hetero-zone interaction
Yuntian Zhu,Kei Ameyama,Peter M. Anderson,Irene J. Beyerlein,Huajian Gao,Hyoung Seop Kim,Enrique J. Lavernia,Suveen N. Mathaudhu,Haël Mughrabi,Robert O. Ritchie,Nobuhiro Tsuji,Xiangyi Zhang,Xiaolei Wu +12 more
Abstract: Heterostructured materials are an emerging class of materials with superior performances that are unattainable by their conventional homogeneous counterparts. They consist of heterogeneous zones wi...