Results 11 to 20 of about 14,999,085 (143)

Local Lattice Distortion in High-Entropy Carbide Ceramics

open access: yesMetals, 2021
Using the ab initio calculations, we study the lattice distortion of HfNbTaTiVC5, HfNbTaTiZrC5 and MoNbTaTiVC5 high-entropy carbide (HEC) ceramics. Results indicate that the Bader atomic radius and charge transfer in HECs is very close to those from ...
Huijuan Ge   +3 more
doaj   +2 more sources

From high-entropy ceramics to compositionally complex ceramics and beyond

open access: yesJournal of Materiomics
Over the past decade, the field of high-entropy ceramics (HECs) has expanded rapidly to encompass a broad range of oxides, borides, silicides, and other ceramic solid solutions.
Jian Luo
doaj   +2 more sources

Fully dense nanocrystalline (La0.2Nd0.2Sm0.2Eu0.2Gd0.2)2Zr2O7 high-entropy ceramics fabricated under ultra-high pressure

open access: yesOpen Ceramics
In this work, nanocrystalline high-entropy ceramics (HECs) were prepared by the combination of combustion synthesis and ultra-high pressure sintering. The prepared high-entropy (La0.2Nd0.2Sm0.2Eu0.2Gd0.2)2Zr2O7 ceramic powder had the average grain size ...
Mengting Lin   +5 more
doaj   +2 more sources

Recent Advances in High-Entropy Ceramics: Synthesis Methods, Properties, and Emerging Applications

open access: yesCeramics
High-entropy ceramics (HECs) represent an emerging class of materials composed of at least five different cations or anions in near-equiatomic proportions, garnering significant attention due to their extraordinary functional and structural properties ...
Piyush Chandra Verma   +3 more
doaj   +2 more sources

Crystal Structure and Microwave Dielectric Characteristics of Novel Ba(Eu1/5Sm1/5Nd1/5Pr1/5La1/5)2Ti4O12 High-Entropy Ceramic

open access: yesCrystals
High-permittivity Ba(Eu1/5Sm1/5Nd1/5Pr1/5La1/5)2Ti4O12 (BESNPLT) high-entropy ceramics (HECs) were synthesized via a solid-state route. The microstructure, sintering behavior, phase structure, vibration modes, and microwave dielectric characteristics of ...
Qing Wan   +4 more
doaj   +2 more sources

Reduced He ion irradiation damage in ZrC-based high-entropy ceramics [PDF]

open access: yesJournal of Advanced Ceramics, 2023
Excellent irradiation resistance is the basic property of nuclear materials to keep nuclear safety. The high-entropy design has great potential to improve the irradiation resistance of the nuclear materials, which has been proven in alloys.
Xiao-Ting Xin   +9 more
doaj   +2 more sources

Entropy-stabilized silicides: Expanding the B20 single-phase region from mono-silicide to high-entropy silicide

open access: yesAPL Materials, 2022
The formation of a single phase is an important requirement for high-entropy ceramics (HECs) because precipitation of unwanted phases generally degrades their functional properties. This paper provides a useful guideline for the single-phase formation of
Sang Jun Kim   +3 more
doaj   +2 more sources

High entropy ceramics for applications in extreme environments

open access: yesJPhys Materials
Compositionally complex materials have demonstrated extraordinary promise for structural robustness in extreme environments. Of these, the most commonly thought of are high entropy alloys, where chemical complexity grants uncommon combinations of ...
T Z Ward   +7 more
doaj   +2 more sources

Full-scale insight into high-entropy ceramics from basic concepts, synthesis technologies, structural characteristics, and properties to application prospects

open access: yesJournal of Materials Research and Technology
High-entropy ceramics (HECs) are an emerging material system that has gained significant attention and become a focal point of research due to their unique structure and outstanding performance.
Yunlei Wang   +3 more
doaj   +2 more sources

High entropy ceramics: research trends and reviewing mechanical properties using computer vision techniques

open access: yesMaterials Research Express
High entropy ceramics (HECs) represent a novel class of materials characterized by their unique multi-principal element compositions and exceptional properties.
Bijendra Kumar   +5 more
doaj   +2 more sources

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