Results 81 to 90 of about 8,749,731 (254)

Phase-Field Simulation of Grain Growth in Uranium Silicide Nuclear Fuel

open access: yesCrystals
Uranium silicide (U3Si2) is regarded as a viable fuel option for improving the safety of nuclear power plants. In the present work, phase-field simulations were employed to investigate grain growth phenomena, encompassing both isotropic and anisotropic ...
Xiaoqiang Pan   +5 more
doaj   +1 more source

Optimizing a green manure-based row cropping system for organic cereal production [PDF]

open access: yes, 2018
A row cropping system with an increase of row distance to 24 cm increased the growth of undersown cover crops and allowed 1-2 passes of interow hoeing for weed control before sowing cover crops.
Phan, Hong TT   +1 more
core  

Kinetics of Grain Growth in 718 Ni-Base Superalloy

open access: yesArchives of Metallurgy and Materials, 2014
The Haynes® 718 Ni-base superalloy has been investigated by use of modern material characterization, metallographic and heat treatment equipment. Grain growth annealing experiments at temperatures in the range of 1050 – 1200 oC (1323–1473K) for time ...
Huda Z.   +4 more
doaj   +1 more source

A multiscale constitutive model for intergranular stress corrosion cracking in type 304 austenitic stainless steel [PDF]

open access: yes, 2013
Intergranular stress corrosion cracking (IGSCC) is a fracture mechanism in sensitised austenitic stainless steels exposed to critical environments where the intergranular cracks extends along the network of connected susceptible grain boundaries.
Rahimi, S, Siddiq, A
core   +2 more sources

Understanding Homogeneous Nucleation in Solidification of Aluminum by Molecular Dynamics Simulations [PDF]

open access: yes, 2017
Homogeneous nucleation from aluminum (Al) melt was investigated by million-atom molecular dynamics (MD) simulations utilizing the second nearest neighbor modified embedded atom method (MEAM) potentials.
Baskes, Michael I.   +2 more
core   +3 more sources

Preferential Orientation Relationships in Ca$_2$MnO$_4$ Ruddlesden-Popper thin films

open access: yes, 2015
A high-throughput investigation of local epitaxy (called combinatorial substrate epitaxy) was carried out on Ca$_2$MnO$_4$ Ruddlesden-Popper thin films of six thicknesses (from 20 to 400 nm), all deposited on isostructural polycrystalline Sr$_2$TiO$_4 ...
David, A.   +4 more
core   +1 more source

Synthesized grain size distribution in the interstellar medium [PDF]

open access: yes, 2012
We examine a synthetic way of constructing the grain size distribution in the interstellar medium (ISM). First we formulate a synthetic grain size distribution composed of three grain size distributions processed with the following mechanisms that govern
A Gauger   +36 more
core   +2 more sources

Modeling polycrystals with regular polyhedra

open access: yesMaterials Research, 2006
Polycrystalline structure is of paramount importance to materials science and engineering. It provides an important example of a space-filling irregular network structure that also occurs in foams as well as in certain biological tissues.
Paulo Rangel Rios, Martin Eden Glicksman
doaj   +1 more source

Impact of grain size distributions on the dust enrichment in high-redshift quasars

open access: yes, 2012
In high-redshift ($z>5$) quasars, a large amount of dust ($\textstyle\sim 10^{8} \mathrm{M}_{\sun}$) has been observed. In order to explain the large dust content, we focus on a possibility that grain growth by the accretion of heavy elements is the ...
Asano   +35 more
core   +1 more source

The Effect of Sintering Atmosphere and Temperature on Densification, Grain Growth Behavior and Electrical Properties of 0.685(Na0.5Bi0.5)TiO3-0.065BaTiO3-0.25SrTiO3 Ceramics

open access: yesCrystals
(Na0.5Bi0.5)TiO3-BaTiO3-SrTiO3-based lead-free piezoelectric ceramics are one of the possible replacements for Pb(Zr1−xTix)O3. Although they are considered a promising alternative actuator material due to their large electric-field-induced strains, they ...
Nazım Ecebaş   +6 more
doaj   +1 more source

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