Results 21 to 30 of about 8,939 (232)
Most of inorganic structural materials (metallic alloys, ceramics, minerals etc.) are polycrystalline aggregates, consisted of macroscopically large quantity of single-crystal grains (crystallites).
Anatoliy A Tashkinov +1 more
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Topological and metrical aspects of normal and abnormal grain growth
Grain growth theories normally describe a grain using the concept of ‘grain radius’. However, this assumption bypasses all topological information relating to the grain, viz., the number of its faces, edges, etc. This study, by contrast, introduces a new
Paulo Rangel Rios, Martin Eden Glicksman
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Modeling structures of cellular materials for application at various length-scales [PDF]
The paper presents the spectrum of methods and results for design of structures, which are frequently applied in numerical simulations of properties and processes taking place in cellular materials.
Tomasz Wejrzanowski +3 more
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The Dislocation Mechanics of Crystal/Polycrystal Plasticity
A brief history and update are given in four examples demonstrating that polycrystals are generally stronger than their individual component crystal grains because of obstructed dislocation pile-ups at grain boundaries.
Ronald W. Armstrong
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Incremental homogenization approach for ageing viscoelastic polycrystals [PDF]
An approximate self-consistent modelling is proposed to estimate the effective viscoelastic response of polycrystals presenting an ageing constitutive behaviour. This approach makes use of the equivalence between the Dirichlet series approximation of the
Renaud Masson +5 more
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A Compact Ultrafast Electron Diffractometer with Relativistic Femtosecond Electron Pulses
We have developed a compact relativistic femtosecond electron diffractometer with a radio-frequency photocathode electron gun and an electron lens system.
Jinfeng Yang +4 more
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MESOSCALE DEFORMATION-INDUCED SURFACE PHENOMENA IN LOADED POLYCRYSTALS [PDF]
The paper reviews the results of numerical analyses for the micro-and mesoscale deformation-induced surface phenomena in three-dimensional polycrystals with the explicit account for the grain structure.
Romanova, Varvara +2 more
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Static indentation and dynamic indentation are reviewed, with a focus on extraction of material properties of isotropic strain-hardening polycrystalline metals that may be rate- and temperature-sensitive. Static indentation is reviewed first, followed by
John D. Clayton +3 more
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This article studies the dielectric and piezoelectric behavior of unpoled and poled barium titanate (BaTiO3) polycrystals with oxygen vacancies. A phase field model is employed for BaTiO3 polycrystals, coupled with the time-dependent Ginzburg–Landau ...
Fumio Narita +2 more
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Industrial potential of additive manufacturing of transparent ceramics: A review
Transparent ceramics is a unique class of materials, with performance comparable to single crystals, but a high process flexibility given by ceramic technology.
Andrea Volfi +4 more
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