Results 41 to 50 of about 8,749,731 (254)

Understanding secondary phase inclusion and composition variations in the microstructure design of n-type Bi2Te3 alloys via selective dissolution of KCl

open access: yesJournal of Advanced Ceramics, 2023
This study investigated the effects of KCl treatment on microstructure and thermoelectric properties of n-type Bi2Te2.7Se0.3 (BTS) thermoelectric materials.
Gwang Min Park   +6 more
doaj   +1 more source

Ultra-large single crystals by abnormal grain growth

open access: yesNature Communications, 2017
Producing a single crystal is expensive because of low mass productivity. Therefore, many metallic materials are being used in polycrystalline form, even though material properties are superior in a single crystal.
Tomoe Kusama   +6 more
semanticscholar   +1 more source

Influence of Hot Forging Parameters on a Low Carbon Continuous Cooling Bainitic Steel Microstructure

open access: yesMetals, 2020
Thermomechanical processing of low carbon bainitic steels is used to obtain a bainitic microstructure with good strength and toughness by continuous cooling after forging without the need of further heat treating, hence reducing manufacturing costs ...
Antonio Carlos de Figueiredo Silveira   +5 more
doaj   +1 more source

Grain growth and grain translation in crystals [PDF]

open access: yesActa Materialia, 2016
Grain growth is generally driven to minimize the overall grain boundary energy. However, for low-angle grain boundaries the requirement that lattice planes be continuous across the boundary gives rise to a coupling between the normal motion of the grain boundary and the tangential motion of the lattice.
Kevin McReynolds   +2 more
openaire   +1 more source

Subgrain-controlled grain growth in the laser-melted 316 L promoting strength at high temperatures [PDF]

open access: yesRoyal Society Open Science, 2018
Stainless steel 316 L prepared by laser melting consisted of a hierarchical austenitic microstructure with micrometre-sized (10–25 µm) grains containing fine 1 µm subgrains with a cellular structure.
Kamran Saeidi, Farid Akhtar
doaj   +1 more source

The dust mass in z > 6 normal star forming galaxies [PDF]

open access: yes, 2015
We interpret recent ALMA observations of z > 6 normal star forming galaxies by means of a semi-numerical method, which couples the output of a cosmological hydrodynamical simulation with a chemical evolution model which accounts for the contribution to ...
Ciardi, Benedetta   +7 more
core   +2 more sources

Grain Growth Model of Ultra-Fine Grain AZ80 Magnesium Alloy Multi-Directionally Forged During the Isothermal Heating Process

open access: yesMedžiagotyra, 2019
This paper takes the ultra-fine grain AZ80 magnesium alloy multi-directionally forged as the research object. We observe its heating behavior at 673 K with an optical microscope, analyze the grain size distribution, and the change of average grain size ...
Jinlong ZHANG   +5 more
doaj   +1 more source

Rotation-limited growth of three dimensional body-centered cubic crystals

open access: yes, 2015
According to classical grain growth laws, grain growth is driven by the minimization of surface energy and will continue until a single grain prevails.
Mathiesen, Joachim, Tarp, Jens M.
core   +1 more source

Grain charging in protoplanetary discs [PDF]

open access: yes, 2011
Recent work identified a growth barrier for dust coagulation that originates in the electric repulsion between colliding particles. Depending on its charge state, dust material may have the potential to control key processes towards planet formation such
Bai   +35 more
core   +2 more sources

Effect of Number of Variants of Zirconium Hydride on Grain Growth of Zirconium

open access: yesMetals, 2020
The microstructure characteristics of Zr-hydride in Zr are important concerns in metallurgy and nuclear engineering. In particular, it is known that the correlation between hydride and the grain boundary microstructure has a great influence on properties.
Bohyun Yoon, Kunok Chang
doaj   +1 more source

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