Results 1 to 10 of about 15,089,367 (243)

Superelastic High‐Entropy Oxide Ceramic Aerogels for Thermal Superinsulation and Sealing at Extreme Conditions [PDF]

open access: yesAdvanced Science
The lightweight ceramic aerogels are plagued by thermal instability and mechanical degeneration at extreme conditions. In this study, a high‐entropy oxide ceramic of (Gd1/2Lu1/2)2(Ti1/3Zr1/3Hf1/3)2O7 (GLTZH) is prepared through a molecular synthesis ...
Xiaoke Jiang   +9 more
doaj   +3 more sources

Superior energy storage performance via engineering crossover region with competing orders in high-entropy multilayer capacitors [PDF]

open access: yesNature Communications
As promising candidates for next-generation energy storage devices in electrical and electronic systems, lead-free multilayer ceramic capacitors face increasingly high performance requirements.
Tao Deng   +15 more
doaj   +2 more sources

Unraveling the Synergistic Activity‐Stability Enhancement of a High‐Entropy Perovskite Air Electrode for Dual Ceramic Electrochemical Cells [PDF]

open access: yesAdvanced Science
Regulating the activity and stability of high‐entropy perovskite air electrodes is essential for their application in ceramic electrochemical cells, yet the underlying mechanisms remain unclear.
Ying Zhang   +9 more
doaj   +2 more sources

Superelastic ceramic aerogels up to 2200 °C [PDF]

open access: yesNature Communications
Ceramic aerogels hold great promise for thermal insulation, yet their elasticity and operating temperature fall short for extreme applications. Here, we design an entropy-stabilized amorphous-crystalline hybrid structure and develop (Hf, Zr, Ta, Nb, Ti)C
Shixin Zhao   +5 more
doaj   +2 more sources

Entropy-Modulated Oxide–Metal Catalyst Architectures for Direct Ammonia Protonic Ceramic Fuel Cells [PDF]

open access: yesNano-Micro Letters
Highlights Entropy-modulated oxide–metal catalyst exsolving Ni–Fe–Cu alloy nanoparticles from a high-entropy perovskite matrix enables efficient and durable ammonia decomposition.
Dongyeon Kim   +12 more
doaj   +2 more sources

Research Progress of High-Entropy Ceramic Materials [PDF]

open access: yesCailiao Baohu, 2023
The concept of high-entropy alloy not only greatly enriches the metal material system,but also breaks the design routine of traditional ceramic material.In recent years,people are gradually extending the design concept of multi-principal and high-entropy
YAN Dengyi, XU Wenju, JI Li, LIU Xiaohong, WANG Chengshuo, SUN Chufeng, LI Hongxuan
doaj   +1 more source

Polymer-Derived Ceramics Technology: Characteristics, Procedure, Product Structures, and Properties, and Development of the Technology in High-Entropy Ceramics

open access: yesCrystals, 2022
Ceramics have become indispensable materials for a wide range of industrial applications due to their excellent properties. However, the traditional preparation of ceramic materials is often time-consuming and involves high sintering temperatures.
Jiabei He   +4 more
doaj   +1 more source

Effect of SiC on Microstructure, Phase Evolution, and Mechanical Properties of Spark-Plasma-Sintered High-Entropy Ceramic Composite

open access: yesCeramics, 2020
Ultra-high temperature ceramic composites have been widely investigated due to their improved sinterability and superior mechanical properties compared to monolithic ceramics. In this work, high-entropy boron-carbide ceramic/SiC composites with different
Hanzhu Zhang, Farid Akhtar
doaj   +1 more source

New class of high-entropy pseudobrookite titanate with excellent thermal stability, low thermal expansion coefficient, and low thermal conductivity

open access: yesJournal of Advanced Ceramics, 2022
As a type of titanate, the pseudobrookite (MTi2O5/M2TiO5) exhibits a low thermal expansion coefficient and thermal conductivity, as well as excellent dielectric and solar spectrum absorption properties.
Jinyu Wu   +6 more
doaj   +1 more source

Thermal conductivity reduction in (Zr0.25Ta0.25Nb0.25Ti0.25)C high entropy carbide from extrinsic lattice defects

open access: yesMaterials Research Letters, 2022
High entropy carbides ceramics with randomly-distributed multiple principal cations have shown high temperature stability, low thermal conductivity, and possible radiation tolerance. While chemical disorder has been shown to suppress thermal conductivity
Cody A. Dennett   +4 more
doaj   +1 more source

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