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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Determination of the activation energy by stochastic analyses of molecular dynamics simulations of dislocation processes
TL;DR: In this paper, the authors investigated the probability and the probability density of thermal activation of stress-driven dislocation processes, as simulated using molecular dynamics (MD), and found that the determination of the activation energy associated to a thermally activated event can be achieved by a reduction of the stochastic process to a process obeying the Poisson's distribution, preserving the activation probability at the survival time.
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Orientation relationship and interfacial structure between α-Nb5Si3 and Nb solid solution in the eutectic lamellar structure
TL;DR: In this article, the orientation relationship between alpha-Nb(5)Si(3) and Nbss was determined as (002)(alpha) //(002)(Nb) and [310](alpha)//[110]-Nb.
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Defect kinetics on experimental timescales using atomistic simulations
TL;DR: In this paper, a combination of saddle-point search methods (activation relaxation technique, automated basin climbing method and nudged elastic band method) and kinetic Monte Carlo simulations were used to study the long-term evolution of vacancy supersaturations in fcc metals.
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Combining high hardness and crack resistance in mixed network glasses through high-temperature densification
Saurabh Kapoor,Kacper Januchta,Randall E. Youngman,Xiaoju Guo,John C. Mauro,Mathieu Bauchy,Sylwester J. Rzoska,Michal Bockowski,Lars Rosgaard Jensen,Morten Mattrup Smedskjær +9 more
TL;DR: In this paper, a new strategy for overcoming the conflict between hardness and strength is proposed by identifying new structural motifs for designing hard and crack-resistant glasses, focusing on brittle oxide glasses.
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Exact solution of integro-differential equations of diffusion along a grain boundary
Yuri A. Antipov,Huajian Gao +1 more
TL;DR: In this paper, the authors analyse model problems of stress-induced atomic diffusion from a point source or from the surface of a material into an infinite or semi-infinite grain boundary, respectively.
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...