Results 11 to 20 of about 166,949 (328)

Synergistic Effects of SiC_w and Ni Addition on the Densification and Mechanical Properties of (M_0.2Ti_0.2Ta_0.2V_0.2Nb_0.2)B₂ (M=Hf, Zr, or Cr) High-Entropy Ceramics

Ceramics
The improvement of densification and fracture toughness in high-entropy ceramics is important to realizing their practical applications. In this study, SiC whiskers and metal Ni additions were incorporated to solve these problems of high-entropy boride ...
Hongya Wu, Jianxin Sun, Jiaqi Zhang, Junshuai Chen, Zhigang Yang, Yubo Gong, Guoqiang Qin, Gang Yu, Shengya He   +8 more
doaj   +2 more sources

Influence of order-disorder transition on the mechanical and thermophysical properties of A2B2O7 high-entropy ceramics

Journal of Advanced Ceramics, 2022
The order-disorder transition (ODT) of A2B2O7 compounds obtained enormous attention owing to the potential application for thermal barrier coating (TBC) design.
Jiatong Zhu, Mingyue Wei, Jie Xu, Runwu Yang, Xuanyu Meng, Ping Zhang, Jinlong Yang, Guangzhong Li, Feng Gao   +8 more
doaj   +2 more sources

High entropy ceramics for applications in extreme environments [PDF]

JPhys 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, R P Wilkerson, B L Musicó, A Foley, M Brahlek, W J Weber, K E Sickafus, A R Mazza   +7 more
doaj   +2 more sources

Lattice-Distortion-Driven Reduced Lattice Thermal Conductivity in High-Entropy Ceramics. [PDF]

Adv Sci (Weinh)
Lattice distortion and mass fluctuation are two long‐believed potential mechanisms for the reduced lattice thermal conductivity in high‐entropy ceramics (HECs). However, related studies remain unclear.
Liu Y, Fu Y, Gu F, Yu H, Zhuang L, Chu Y.   +5 more
europepmc   +2 more sources

Disordered enthalpy-entropy descriptor for high-entropy ceramics discovery. [PDF]

Nature
The need for improved functionalities in extreme environments is fuelling interest in high-entropy ceramics^ 1 – 3 . Except for the computational discovery of high-entropy carbides, performed with the entropy-forming-ability descriptor^ 4 , most ...
Divilov S, Eckert H, Hicks D, Oses C, Toher C, Friedrich R, Esters M, Mehl MJ, Zettel AC, Lederer Y, Zurek E, Maria JP, Brenner DW, Campilongo X, Filipović S, Fahrenholtz WG, Ryan CJ, DeSalle CM, Crealese RJ, Wolfe DE, Calzolari A, Curtarolo S.   +21 more
europepmc   +2 more sources

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

Ceramics
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, Sunil Kumar Tiwari, Ashish Saurabh, Abhinav Manoj   +3 more
doaj   +2 more sources

Hierarchical porous (Ta0.2Nb0.2Ti0.2Zr0.2Hf0.2)C high-entropy ceramics prepared by a self-foaming method for thermal insulation

Journal of Advanced Ceramics
To meet the emerging demands for thermal protection materials for hypersonic aircraft, developing porous ultrahigh-temperature ceramics with both robust mechanical properties and superior thermal insulation performance is a critical challenge. Herein, we
Cuiyan Li, Ruinan Gao, Haibo Ouyang, Tianzhan Shen, Zihao Chen, Yanlei Li   +5 more
doaj   +2 more sources

High-entropy ceramics: Propelling applications through disorder

MRS Bulletin, 2022
Disorder enhances desired properties, as well as creating new avenues for synthesizing materials. For instance, hardness and yield stress are improved by solid-solution strengthening, a result of distortions and atomic size mismatches. Thermo-chemical stability is increased by the preference of chemically disordered mixtures for high-symmetry super ...
Cormac Toher, Corey Oses, Marco Esters, David Hicks, George N. Kotsonis, Christina M. Rost, Donald W. Brenner, Jon-Paul Maria, Stefano Curtarolo   +8 more
openaire   +2 more sources

Design and synthesis of chemically complex ceramics from the perspective of entropy

Materials Today Advances, 2020
High-entropy ceramics (HECs) have rapidly expanded from high-entropy oxides to high-entropy ultrahigh temperature ceramics/coatings and have drawn extensive attention in the field of ceramics.
J. Liu, G. Shao, D. Liu, K. Chen, K. Wang, B. Ma, K. Ren, Y. Wang   +7 more
doaj   +1 more source

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

Crystals, 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, Mengshan Song, Kaiyun Chen, Dongxiao Kan, Miaomiao Zhu   +4 more
doaj   +1 more source