Results 41 to 50 of about 166,949 (328)

Topological frustration of artificial spin ice [PDF]

, 2017
Frustrated systems, typically characterized by competing interactions that cannot all be simultaneously satisfied, display rich behaviours not found elsewhere in nature.
Cumings, John, Drisko, Jasper, Marsh, Thomas   +2 more
core   +2 more sources

Single-phase high-entropy intermetallic compounds (HEICs): bridging high-entropy alloys and ceramics

Science Bulletin, 2019
High-entropy intermetallic compounds (HEICs) were fabricated by mechanical alloying and spark plasma sintering to fill a knowledge gap between the traditional high-entropy alloys (HEAs) and emerging high-entropy ceramics (HECs). Notably, several four- or five-component equimolar aluminides, such as the B2-phase (Fe1/5Co1/5Ni1/5Mn1/5Cu1/5)Al, have been ...
Zhou, Naixie, Jiang, Sicong, Huang, Timothy, Qin, Mingde, Hu, Tao, Luo, Jian   +5 more
openaire   +4 more sources

Dual-phase high-entropy ultra-high temperature ceramics

Journal of the European Ceramic Society, 2020
A series of dual-phase high-entropy ultrahigh temperature ceramics (DPHE-UHTCs) are fabricated starting from N binary borides and (5-N) binary carbides powders. >~99% relative densities have been achieved with virtually no native oxides. These DPHE-UHTCs consist of a hexagonal high-entropy boride (HEB) phase and a cubic high-entropy carbide (HEC ...
Mingde Qin, Joshua Gild, Chongze Hu, Haoren Wang, Md Shafkat Bin Hoque, Jeffrey L. Braun, Tyler J. Harrington, Patrick E. Hopkins, Kenneth S. Vecchio, Jian Luo   +9 more
openaire   +3 more sources

Mechanical properties of hot-pressed high-entropy diboride-based ceramics

Journal of Advanced Ceramics, 2020
High-entropy ceramics attract more and more attention in recent years. However, mechanical properties especially strength and fracture toughness for high-entropy ceramics and their composites have not been comprehensively reported.
Ji-Xuan Liu, Xiao-Qin Shen, Yue Wu, Fei Li, Yongcheng Liang, Guo-Jun Zhang   +5 more
doaj   +1 more source

Investigations on micro-mechanical properties of polycrystalline Ti(C,N) and Zr(C,N) coatings [PDF]

, 2018
Micro-mechanical properties of Ti(C,N) and Zr(C,N) coatings deposited by chemical vapor deposition on a WC-Co cemented carbide substrate were examined by micro-compression testing using a nanoindenter equipped with a flat punch.
El Azhari, Idriss, García, José, Llanes Pitarch, Luis Miguel, Mücklich, Frank, Pauly, Christoph, Soldera, Flavio, Zamanzade, Mohammad   +6 more
core   +3 more sources

Research progress in high-entropy carbide ceramic materials

Cailiao gongcheng
In recent years， high-entropy ceramics have attracted extensive attention from scholars at home and abroad because of their superior properties to traditional ceramic materials and ability to meet the needs of extreme service environments better.
XIE Chenyi, LIU Rongjun, WANG Yanfei, LI Duan, MIAO Huaming   +4 more
doaj   +1 more source

Dielectric and ferroelectric characteristics of Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics

Journal of Materiomics, 2023
Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics were prepared by a standard solid state reaction process, and the dielectric and ferroelectric characteristics were investigated together with the structures.
Rui Hu Mi, Bu Hang Chen, Xiao Li Zhu, Xiang Ming Chen   +3 more
doaj   +1 more source

Giant energy-storage density with ultrahigh efficiency in lead-free relaxors via high-entropy design

Nature Communications, 2022
Dielectric ceramics are widely used in advanced high/pulsed power capacitors. Here, the authors propose a high-entropy strategy to design “local polymorphic distortion” in lead-free ceramics, achieving high energy storage performance.
Liang Chen, Shiqing Deng, Hui Liu, Jie Wu, He Qi, Jun Chen   +5 more
doaj   +1 more source

High‐entropy transparent fluoride laser ceramics

Journal of the American Ceramic Society, 2019
Abstract For the first time, a transparent high‐entropy fluoride laser ceramic has been prepared and characterized. X‐ray diffraction (XRD) analysis of a CeNdCaSrBaF 12 (CNCSBF) transparent ceramic consolidated by vacuum hot pressing (VHP) reveals that Ce
Xianqiang Chen, Yiquan Wu
openaire   +2 more sources

Research progress on high entropy oxide ceramics: Principles, preparation, and properties

Journal of Materials Research and Technology
High entropy oxide ceramics impart diverse excellent characteristics and extensive application potential to the high entropy oxide family, owing to their distinct high entropy effects and lattice distortions. Starting from the basic definition of entropy,
Gang Du, Canhua Li, Jiamao Li, Guangchao Wu, Zhenyi Huang, Aiqin Mao, Mengchen Ma, Zhiyun Guo, Zhao Chen   +8 more
doaj   +1 more source