Results 31 to 40 of about 14,999,085 (143)

Facile synthesis of high-entropy zirconate nanopowders and their sintering behaviors

Journal of Advanced Ceramics, 2023
The challenge in synthesizing high-entropy ceramic (HEC) nanopowders is to suppress severe grain coarsening and particle agglomeration, which occur at elevated temperatures. This challenge could be addressed by the polyacrylamide gel method. In this work,
Lin Tan, Xinghua Su, Jingxin Yang, Pengchao Ji, Fu Sun, Qiang Tian, Zhenhuan Zhao   +6 more
doaj   +1 more source

Design and development of high entropy materials

, 2023
The original concept of entropically stabilized solid solutions proposed in 2004 has evolved into the development of high-entropy materials (HEMs), which include high-entropy alloys (HEAs) and high-entropy ceramics (HECs).
YEH, An-Chou, Dustin A. Gilbert, GORSSE, Stéphane, Veerle Keppens, Stéphane Gorsse, Gilbert, Dustin, A, KEPPENS, Veerle, GILBERT, Dustin, An-Chou Yeh   +8 more
core   +1 more source

Single-source precursor derived high-entropy metal–carbide nanowires: Microstructure and growth evolution

Journal of Advanced Ceramics, 2023
In recent years, high-entropy metal carbides (HECs) have attracted significant attention due to their exceptional physical and chemical properties.
Junhao Zhao, Yulei Zhang, Hui Chen, Yanqin Fu, Qing Miao, Jiachen Meng, Jiachen Li   +6 more
doaj   +1 more source

Unrevealing hardening and strengthening mechanisms in high-entropy ceramics from lattice distortion [PDF]

, 2023
Revealing the hardening and strengthening mechanisms is crucial for facilitating the design of superhard and high-strength high-entropy ceramics (HECs).
Chu, Yanhui, Tang, Haifeng, Liu, Yiwen, Tang, Zhongyu, Yu, Hulei, Ma, Mengdong   +5 more
core   +1 more source

Efficient single-step mechanosynthesis route of nanostructured Hf0.2Nb0.2Ta0.2V0.2Zr0.2C0.5N0.5 High Entropy Carbonitride Powder [PDF]

[EN] Nowadays high entropy carbides (HECs) are an important group of advanced ceramics. They are composed by at least by five transition metals (TMs) in nearly equiatomic proportion and disordered distributed in the cationic sublattice of face centered ...
Chicardi, E., Gallego-Parra, Samuel, Salvo, C., Sepúlveda, R.   +3 more
core   +2 more sources

Micromechanical mapping of high entropy carbide based hardmetals

, 2023
High Entropy Alloys (HEA) are materials consisting of a mixture of five or more elements in equal or relatively large proportions. They are a promising alternative material due to their desirable properties such as good wettability, high toughness, wear ...
Llanes Pitarch, Luis Miguel, Vornberger, Anne, Pötschke, Johannes, Jiménez Piqué, Emilio, Cabezas i Peñalva, Laura   +4 more
core   +1 more source

High-entropy perovskite RETa3O9 ceramics for high-temperature environmental/thermal barrier coatings

Journal of Advanced Ceramics, 2022
Four high-entropy perovskite (HEP) RETa3O9 samples were fabricated via a spark plasma sintering (SPS) method, and the corresponding thermophysical properties and underlying mechanisms were investigated for environmental/thermal barrier coating (E/TBC ...
Lin Chen, Baihui Li, Jun Guo, Yuke Zhu, Jing Feng   +4 more
doaj   +1 more source

SPS-Prepared High-Entropy (Bi0.2Na0.2Sr0.2Ba0.2Ca0.2)TiO3 Lead-Free Relaxor-Ferroelectric Ceramics with High Energy Storage Density

, 2023
Compared to batteries and electrochemical capacitors, dielectric capacitors are widely studied because of their huge advantages in terms of charging/discharging speed and power density. In this work, high-entropy (Bi0.2Na0.2Sr0.2Ba0.2Ca0.2)TiO3 lead-free
Chanatip Samart, Ya Lu, Naohisa Takesue, Haibo Zhang, Huabin Yang, Pengyuan Fan, Hua Tan   +6 more
core   +1 more source

High Entropy Transition Metal Carbides [PDF]

, 2022
This work is on the understanding and development of high entropy transition metal carbides. As ultra-high temperature structural ceramics, they are suitable for applications at high temperatures and in severe environments.
Wang, Y
core   +4 more sources

Recent advances in high-entropy carbide ultra-high temperature ceramics: Synthesis, properties, and applications [PDF]

AIP Advances
High-entropy carbides (HECs) have emerged as a class of advanced ultra-high temperature ceramics with remarkable potential for applications in extreme environments.
Ye Chen, Yuxuan Han, Lingqing Zhao, Guanglei Zhang   +3 more
doaj   +1 more source