Results 21 to 30 of about 7,037 (191)

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

A finite deformation analysis of polycrystal by considering the influence of grain boundary

open access: yes, 1996
By combining grain boundary (GB) and its influence zone, a micromechanic model for polycrystal is established for considering the influence of GB. By using the crystal plasticity theory and the finite element method for finite deformation, numerical ...
张永伟, 王自强, 潘文科
core   +2 more sources

Metal Crystal/Polycrystal Plasticity and Strengths

open access: yesMetals, 2022
A brief historical sketch is given of Taylor’s dislocation density-based model description, leading to the prediction of a parabolic, tensile, stress–strain curve for the plastic deformation of aluminum.
Ronald W. Armstrong
doaj   +1 more source

Piezoelectric characteristics of PVA/DL-alanine polycrystals in d33 mode

open access: yesiScience, 2023
Summary: In this study, polyvinyl alcohol (PVA)-mixed DL-alanine (PVA/DL-alanine) polycrystals are fabricated, and their piezoelectric characteristics in the d33 mode are investigated. The d33 piezoelectric coefficients of the PVA/DL-alanine polycrystals
Buil Jeon, Dongsoo Han, Giwan Yoon
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

Experimental Polycrystal Stress Mapping Using Raman Spectroscopy

open access: yes, 2020
Stress conditions leading to rock deformation influence how a rock will ultimately deform. However, the internal distribution of stress in an elastically anisotropic rock under load, a precursor to rock deformation, is not well understood.
Kidman, Genevieve C.
core   +1 more source

Home - About - Disclaimer - Privacy