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Annealing‐Induced Plasticity and Strengthening in Metallic Glasses
Advanced Science, EarlyView.This work challenges the dogma that annealing inevitably embrittles metallic glasses. We demonstrate that sub‐Tg annealing, guided by positive mixing enthalpy and constrained kinetics, can drive a self‐organized compositional fluctuation that creates an interface‐free heterogeneous structure.
Yingjie Zhang +17 more
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[Numerical study on structural design and mechanical analysis of anti-migration tracheal stent with non-uniform Poisson's ratio]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiTao K +7 more
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Poisson's ratio and modern materials
Nature Materials, 2011In comparing a material's resistance to distort under mechanical load rather than to alter in volume, Poisson's ratio offers the fundamental metric by which to compare the performance of any material when strained elastically. The numerical limits are set by ½ and -1, between which all stable isotropic materials are found.
Greaves, G. N. +3 more
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Inorganic Materials: Applied Research, 2021
A review of the literature data and methods for calculating the Poisson coefficient of the TiNi intermetallic compound in the poly- and single-crystal state is performed. The results of our own research are also presented. Significant variability of the presented data is noted, due to differences in the thermomechanical processing of the alloys and the
S. A. Muslov, A. I. Lotkov, V. N. Timkin
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A review of the literature data and methods for calculating the Poisson coefficient of the TiNi intermetallic compound in the poly- and single-crystal state is performed. The results of our own research are also presented. Significant variability of the presented data is noted, due to differences in the thermomechanical processing of the alloys and the
S. A. Muslov, A. I. Lotkov, V. N. Timkin
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Bio-Medical Materials and Engineering, 1991
Poisson's ratio of cow teat skin was measured uni- and biaxially and shown to be anisotropic and dependent on aspect ratio. At strains below 0.1 (where Cauchy and Hencky strain are indistinguishable) the Poisson's ratio of cow teat skin measured biaxially is very much greater than 1.0, whereas the Poisson's ratio of distending artery is between 0.5 and
C, Lees, J F, Vincent, J E, Hillerton
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Poisson's ratio of cow teat skin was measured uni- and biaxially and shown to be anisotropic and dependent on aspect ratio. At strains below 0.1 (where Cauchy and Hencky strain are indistinguishable) the Poisson's ratio of cow teat skin measured biaxially is very much greater than 1.0, whereas the Poisson's ratio of distending artery is between 0.5 and
C, Lees, J F, Vincent, J E, Hillerton
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Poisson's Ratio for Orthorhombic Materials
Journal of Elasticity, 1998zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Boulanger, Philippe, Hayes, Michael
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Nonlinear Analysis of the Poisson's Ratio of Negative Poisson's Ratio Foams
Journal of Composite Materials, 1995This article contains an analytic study of Poisson's ratio of re-entrant foam materials with negative Poisson's ratio. These materials get fatter when stretched and thinner when compressed. The Poisson effect is so fundamentally important to the properties of a material that a large change in the value of the ratio will have significant effects on the
J. B. Choi, R. S. Lakes
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1998 Conference on Optoelectronic and Microelectronic Materials and Devices. Proceedings (Cat. No.98EX140), 2002
Most epitaxial layer growth involves mismatch between layer and growth substrate, even in the case of nearly lattice matched systems such as GaAs/AlAs. The accurate determination of layer thicknesses and stoichiometry in single and multi-layer heterostructures by x-ray diffraction requires knowledge of the elastic properties of the layers so that ...
B.F. Usher +4 more
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Most epitaxial layer growth involves mismatch between layer and growth substrate, even in the case of nearly lattice matched systems such as GaAs/AlAs. The accurate determination of layer thicknesses and stoichiometry in single and multi-layer heterostructures by x-ray diffraction requires knowledge of the elastic properties of the layers so that ...
B.F. Usher +4 more
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SPIE Proceedings, 2000
In this work, we present a new approach to determining Poisson's ratio of AlAs. This approach requires the growth of a particular structure with a multiple quantum well (MQW) - 10X[500 angstroms GaAs/800 angstroms AlxGa1-xAs] followed by two single layers - 0.5 (mu) AlAs and 0.5 (mu) AlxGa1-xAs on a GaAs substrate.
D. Zhou +4 more
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In this work, we present a new approach to determining Poisson's ratio of AlAs. This approach requires the growth of a particular structure with a multiple quantum well (MQW) - 10X[500 angstroms GaAs/800 angstroms AlxGa1-xAs] followed by two single layers - 0.5 (mu) AlAs and 0.5 (mu) AlxGa1-xAs on a GaAs substrate.
D. Zhou +4 more
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Negative Poisson's ratio in rippled graphene
Nanoscale, 2017In this work, we perform molecular dynamics (MD) simulations to study the effect of rippling on the Poisson's ratio of graphene. Due to the atomic scale thickness of graphene, out-of-plane ripples are generated in free standing graphene with topological defects (e.g. heptagons and pentagons) to release the in-plane deformation energy.
Huasong Qin +4 more
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