Results 21 to 30 of about 2,415 (216)

Generalization of the Hall-Petch and inverse Hall-Petch behaviors by tuning amorphous regions in 2D solids

open access: yesNational Science Open, 2023
The strength $ σ_{y}(D)$ of a polycrystal can decrease or increase with the grain diameter $D$, i.e., the famous Hall-Petch (HP) and inverse-Hall-Petch (IHP) behaviors, respectively.
Xu Zhibin   +3 more
doaj   +1 more source

Conducting and dielectric properties of Na3Fe2(PO4)3 and Na2FePO4F

open access: yesEurasian Journal of Physics and Functional Materials, 2021
In this research, the structure parameters, conducting and dielectric properties of Na3Fe2(PO4)3 and Na2FePO4F polycrystals were studied obtained by solid-phase synthesis.
A. A. Nogai   +3 more
doaj   +1 more source

Experimental and Computational Approach to Fatigue Behavior of Polycrystalline Tantalum

open access: yesMetals, 2021
This work provides an experimental and computational analysis of low cycle fatigue of a tantalum polycrystalline aggregate. The experimental results include strain field and lattice rotation field measurements at the free surface of a tension–compression
Damien Colas   +5 more
doaj   +1 more source

The Internal Friction of Single Crystals, Bicrystals and Polycrystals of Pure Magnesium

open access: yesArchives of Metallurgy and Materials, 2015
The internal friction of magnesium single crystals, bicrystals and polycrystals has been studied between room temperature and 450°C. There is no internal friction peak in the single crystals, but a prominent relaxation peak appears at around 160°C in ...
Jiang W.B.   +3 more
doaj   +1 more source

Deformation behavior and stress states of a diffusional creeping polycrystal with bimodal grain-size distribution

open access: yesArchives of Mechanics, 2010
Diffusional creep of a polycrystal with bimodal grain-size distribution is examined with spherical-grain approximation. Deformation behavior and stress states of the polycrystal are formulated when grain-boundary sliding occurs much more rapidly than ...
S. Onaka
doaj   +1 more source

Monte Carlo simulations of crystalline organic semiconductors [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2013
Molecular model for crystalline organic semiconductors based on small molecules is implemented in three-dimensional Monte Carlo simulations. In this paper results for naphthalene are presented.
Mladenović Marko, Stanković Igor
doaj   +1 more source

Estimation of Yield Function for Anisotropic Aggregate of FCC Crystallites

open access: yesCrystals, 2022
In this paper, we give an simple but approximate yield surface for single FCC crystals in Hill’s criterion form by Schmid’s law and nonlinear optimization theory.
Lu Zhou   +4 more
doaj   +1 more source

PROPERTIES AND OPTICAL APPLICATION OF POLYCRYSTALLINE ZINC SELENIDE OBTAINED BY PHYSICAL VAPOR DEPOSITION [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
Findings on production technology, mechanical and optical properties of polycrystalline zinc selenide are presented. The combination of its physicochemical properties provides wide application of ZnSe in IR optics.
A. A. Dunaev, I. L. Egorova
doaj   +1 more source

Temperature and Crystalline Orientation-Dependent Plastic Deformation of FeNiCrCoMn High-Entropy Alloy by Molecular Dynamics Simulation

open access: yesMetals, 2022
The effect of the crystallographic direction and temperature on the mechanical properties of an FeNiCrCoMn high-entropy alloy (HEA) is explored by molecular dynamics simulations.
Fuan Yang   +3 more
doaj   +1 more source

The Effect of Novolac and Graphite Polycrystal on the Acetone Penetration and Thermal Resistance of Nanocomposites Based on Nitrile Rubber [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2015
Developments of high diffusive environments in coincidence with emerging fluids with strong ability to destroy polymeric systems have resulted in rapid deformation and destruction of polymeric parts when in contact with such aggressive environments ...
Rasool Mahboudi   +2 more
doaj   +1 more source

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