Charge-Induced Disorder Controls the Thermal Conductivity of Entropy-Stabilized Oxides.
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DOI: 10.1002/adma.201805004
Abstract: Manipulating a crystalline material's configurational entropy through the introduction of unique atomic species can produce novel materials with desirable mechanical and electrical properties. From a thermal transport perspective, large differences between elemental properties such as… read more here.
Keywords: disorder; charge; thermal conductivity; entropy stabilized ... See more keywords
Entropy-stabilized oxides with medium configurational entropy
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DOI: 10.1016/j.ceramint.2020.12.143
Abstract: Abstract Medium-entropy oxides, ((Mg1/3Co1/3Ni1/3)1-xZnx)O with x between 0.292 to 0.388, were synthesized by sintering the corresponding powder mixtures and proven to be entropy stabilized. The enthalpy of mixing of these oxides was estimated from their… read more here.
Keywords: entropy; oxides medium; entropy stabilized; stabilized oxides ... See more keywords
Ultrafast synthesis of entropy-stabilized oxide at room temperature
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DOI: 10.1016/j.jeurceramsoc.2020.01.018
Abstract: Abstract Five-component entropy-stabilized oxide ceramic (Mg0.2Ni0.2Co0.2Cu0.2Zn0.2O) has been successfully synthesized by reaction assisted flash sintering at room temperature. Compared to the conventional sintering technique, the starting materials have been completely transformed to a single rocksalt… read more here.
Keywords: stabilized oxide; entropy stabilized; room temperature; entropy ... See more keywords
Hidden Transformations in Entropy-Stabilized Oxides
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DOI: 10.1016/j.jeurceramsoc.2021.06.014
Abstract: Abstract Entropy-stabilized oxides (ESO) display a reversible entropy-driven phase transformation that can be leveraged to produce a continuum of metastable phase states, allowing for property optimization and novel functionalities. X-ray absorption spectroscopy reveals that entropic… read more here.
Keywords: entropy stabilized; electronic structures; entropy; hidden transformations ... See more keywords
Novel rare-earth and transition metal-based entropy stabilized oxides with spinel structure
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DOI: 10.1016/j.scriptamat.2019.12.027
Abstract: Abstract Entropy stabilization was attempted through the addition of 5 different rare earth cations, 5 different transition metal cations and all these 10 cations in the form of three compounds based on NiFe2O4. Equiatomic ratios… read more here.
Keywords: transition metal; rare earth; entropy stabilized; stabilized oxides ... See more keywords
Novel entropy-stabilized fluorite oxides with multifunctional properties
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DOI: 10.1039/d3ta02124f
Abstract: Development of new high-entropy oxides having configurational entropy dominating the phase stability has become a hot topic since the discovery of rock salt structure entropy-stabilized (MgCoNiCuZn)O in 2015. Herein, we... read more here.
Keywords: oxides multifunctional; entropy stabilized; stabilized fluorite; novel entropy ... See more keywords
Preparation and Thermophysical Properties of New Multi-Component Entropy-Stabilized Oxide Ceramics for Thermal Barrier Coatings
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DOI: 10.3390/coatings13050937
Abstract: Five kinds of multi-component entropy-stabilized oxide ceramics were prepared by a solid-state reaction method for thermal barrier coatings, namely La0.125Y0.125Yb0.125Gd0.125Zr0.5O1.75 (LaYYbGdZr), Y0.125Yb0.125Gd0.125Ta0.125Zr0.5O1.875 (YYbGdTaZr), La0.1Y0.1Yb0.1Gd0.1Ta0.1Zr0.5O1.85 (LaYYbGdTaZr), Y0.125Yb0.125Gd0.125Ta0.125Hf0.25Zr0.25O1.875 (YYbGdTaHfZr), and La0.1Y0.1Yb0.1Gd0.1Ta0.1Hf0.25Zr0.25O1.85 (LaYYbGdTaHfZr). Many properties of the materials… read more here.
Keywords: multi component; entropy stabilized; component entropy; oxide ceramics ... See more keywords