A5005092091- High Entropy Alloys Studies
- High-Temperature Coating Behaviors
- Additive Manufacturing Materials and Processes
- Advanced Materials Characterization Techniques
- Advanced Thermoelectric Materials and Devices
- Intermetallics and Advanced Alloy Properties
- High Temperature Alloys and Creep
- Magnetic and transport properties of perovskites and related materials
- Semiconductor materials and interfaces
- Chalcogenide Semiconductor Thin Films
- Aluminum Alloy Microstructure Properties
- Aluminum Alloys Composites Properties
- Metallurgical and Alloy Processes
- Rare-earth and actinide compounds
- Thermal properties of materials
- Magnetic Properties of Alloys
- Metal and Thin Film Mechanics
- Metallic Glasses and Amorphous Alloys
- Hydrogen Storage and Materials
- Advanced materials and composites
- Magnesium Alloys: Properties and Applications
- Quantum Dots Synthesis And Properties
- Thermal Expansion and Ionic Conductivity
- Titanium Alloys Microstructure and Properties
- Additive Manufacturing and 3D Printing Technologies
Institut de Chimie de la Matière Condensée de Bordeaux
2016-2025
Université de Bordeaux
2016-2025
Centre National de la Recherche Scientifique
2016-2025
Institut Polytechnique de Bordeaux
2016-2025
National Tsing Hua University
2024
École Nationale Supérieure de Chimie, de Biologie et de Physique
2004-2020
Wright State University
2016-2017
Institut des Matériaux Jean Rouxel
2008
Nantes Université
2008
University of Virginia
2002
This data article presents the compilation of mechanical properties for 370 high entropy alloys (HEAs) and complex concentrated (CCAs) reported in period from 2004 to 2016. The sheet includes alloy composition, type microstructures, density, hardness, tests measure room temperature properties, yield strength, elongation, ultimate strength Young׳s modulus. For 27 refractory HEAs (RHEAs), stress elongation are given as a function testing temperature. stored database provided Supplementary...
High-entropy alloys (HEAs) and related concept of complex concentrated (CCAs) expand the diversity materials world inspire new ideas approaches for design with an attractive combination properties. Here, we present a critical review field intent summarizing principles underlying their birth growth. We highlight major accomplishments progresses over last 14 years, especially in discovery microstructures mechanical Finally, outline main challenges provide guidance future works. Les alliages à...
High-entropy alloys have exhibited unusual materials properties. The stability of equimolar single-phase solid solution five or more elements is supposedly rare and identifying the existence such has been challenging because vast chemical space possible combinations. Herein, based on high-throughput density-functional theory calculations, we construct a map high-entropy by investigating over 658,000 quinary through binary regular solid-solution model. We identify 30,201 potential (5%...
A synthetic route for producing Cu(2)ZnGeSe(4) nanocrystals with narrow size distributions and controlled composition is presented. These were used to produce densely packed nanomaterials by hot-pressing. From the characterization of thermoelectric properties these nanomaterials, demonstrated show excellent properties. very preliminary adjustment nanocrystal has already resulted in a figure merit up 0.55 at 450 °C.
Abstract The lattice dynamics in the IV–VI compounds GeTe, SnTe and PbTe were studied by 125 Te 119 Sn nuclear inelastic scattering obtained partial density of phonon states compared with published theoretical calculations. phase purity structure characterized high energy X‐ray diffraction. effect atomic arrangement, rhombohedral for GeTe cubic PbTe, is visible states. Vibrational properties are found to be good agreement available calculated data softer character NaCl‐type structures...
The bottom-up assembly of nanocrystals provides access to a three-dimensional composition control at the nanoscale not attainable by any other technology. In particular, colloidal nanoheterostructures, with intrinsic multiphase organization, are especially appealing building blocks for production nanocomposites. present work, we use PbTe–PbS as model material system and thermoelectricity paradigmatic application investigate potential core–shell nanoparticles produce functional With this goal...
The microstructure and tensile property of Al0.2Co1.5CrFeNi1.5Ti0.3 high entropy alloy (HEA) processed by selective laser melting (SLM) have been studied in comparisons to that fabricated traditional cast & wrought (C&W) route. C&W samples were annealed then aged at 750 ℃ for 50 h promote precipitation strengthening L12 structured phase FCC matrix. By contrast, SLM directly from the as-built condition, which possessed sub-micron dendritic segregation, internal stress nano oxides; result was...
Abstract This data article presents a compilation of mechanical properties 630 multi-principal element alloys (MPEAs). Built upon recently published MPEA databases, this includes updated records from previous reviews (with minor error corrections) along with new articles that were since 2019. The extracted include reported composition, processing method, microstructure, density, hardness, yield strength, ultimate tensile strength (or maximum compression strength), elongation strain), and...
This study examines one of the limitations CALPHAD databases when applied to high entropy alloys and complex concentrated alloys. We estimate level thermodynamic description, which is still sufficient correctly predict properties quaternary alloy systems, by comparing results calculations where phase space extrapolated from binary descriptions those resulting complete ternary interaction descriptions. Our analysis has shown that a can be predicted direct extrapolation respective fully...
Understanding the local chemical ordering propensity in random solid solutions, and tailoring its strength, can guide design discovery of complex, paradigm-shifting multicomponent alloys. First, we present a simple thermodynamic framework, based solely on binary enthalpies mixing, to select optimal alloying elements control nature extent high-entropy alloys (HEAs). Next, couple high-resolution electron microscopy, atom probe tomography, hybrid Monte-Carlo, special quasirandom structures,...
Correlations were explored between mechanical, thermodynamic and physical properties of refractory complex concentrated alloys (RCCAs). Experimentally measured yield strengths (σy) ductility taken from the open literature compared against liquidus, solidus solvus temperatures, elastic (Young's, shear bulk moduli), density (ρ), surface energy (γ) valence electron concentration (VEC). If not publicly available, calculated using CALPHAD while other listed above estimated a rule-of-mixtures...