Results 71 to 80 of about 14,999,085 (143)

Exploring mechanical and thermal properties of high-entropy ceramics via general machine learning potentials [PDF]

The mechanical and thermal performance of high-entropy ceramics are critical to their use in extreme conditions. However, the vast composition space of high-entropy ceramic significantly hinders their development with desired mechanical and thermal ...
Meng, Hong, Chu, Yanhui, Zhu, Zijie, Zhuang, Lei, Liu, Yiwen, Yu, Hulei   +5 more
core   +1 more source

High-entropy boron-carbide and its composites

, 2020
High-entropy alloy (HEA) is a multicomponent alloy material that contains five or more principal elements in equi- or near equi-atomic ratios. The entropy stabilisation leads to the formation of a crystalline solid solution accommodating the principal ...
Zhang, Hanzhu
core   +2 more sources

Microscopic Mechanisms of Plastic Deformation in High-Entropy Carbide (Zr0.2Hf0.2Ti0.2Nb0.2Ta0.2)C under Quasi-Isentropic and Ramp Compression

Gaoya wuli xuebao
High-entropy carbides (HECs), which are characterized by pronounced chemical disorder and lattice distortion, exhibit exceptional strength-toughness synergy and are promising candidates for impact protection and high-temperature structural applications ...
Lanxi FENG, Chuanying LI, Wanghui LI, Xiaoqing ZHANG, Xiaohu YAO   +4 more
doaj   +1 more source

Pressureless Sintering of Dual-Phase, High-Entropy Boride–carbide Ceramics

, 2023
Dual-Phase, High-Entropy Boride–carbide Ceramics Were Densified by Pressureless Sintering. Relative Densities Up to Approximately 96% Were Obtained for Ceramics Containing About 30 Vol% High-Entropy Boride and 70 Vol% High-Entropy Carbide.
Greg E. Hilmas, Fahrenholtz, William, Huang, Tieshu, Tieshu Huang, William G. Fahrenholtz, Smith, Steven M., Hilmas, Greg, Steven M. Smith   +7 more
core   +1 more source

Ultrafast carbothermal shock synthesis of submicron high-entropy carbides: Dual enhancement of oxidation resistance and microwave absorption

Materials & Design
Improvement in both the oxidation resistance and microwave absorption of ceramic materials is crucial for advancing their aerospace applications in extreme thermal and electromagnetic environments.
Xing Zhao, Yuhang Bai, Yang Yang, Zelong Yao, Yuhao Wu, Jia Liu, Ke Ren, Jiabei He, Huiling Du, Yan Song   +9 more
doaj   +1 more source

A mortise–tenon joint inspired interface structure design for synergistically enhancing the mechanical properties and thermal shock resistance of Cf/(HfNbTaTiZr)C–SiC composites

Journal of Advanced Ceramics
Carbon fiber-reinforced high-entropy carbide ceramics (Cf/HECs) are considered promising candidates for ultrahigh-temperature structural applications.
Tianzhan Shen, Cuiyan Li, Haibo Ouyang, Mengyao He, Sirui Wu, Leer Bao, Qiaoqiao Wang, Yulei Zhang, Jian Wei   +8 more
doaj   +1 more source

Wettability and brazing of (MoNbTaVW)C high-entropy carbide by Ni and NiTa

Journal of Materials Research and Technology
This study aimed to design and validate a suitable brazing filler for the joining of (MoNbTaVW)C High-Entropy Carbides (HECs). CALPHAD calculations were used to analyse phase equilibria of ternary C–Ni-M (M: Mo, Ta, W) systems at 1480 °C and to select a ...
Naser Hosseini, Fabrizio Valenza, Zdeněk Chlup, Sofia Gambaro, Filip Šiška, Carla Malinverni, Jie Xu, Valentina Casalegno, Alexandra Kovalčíková, Monika Tatarková, Milena Salvo, Xiaobing Zhou, Ivo Dlouhý, Peter Tatarko   +13 more
doaj   +1 more source

The effect of configurational entropy and refractory elements on the oxidation behaviour of high entropy carbides containing up to eight refractory elements

High entropy carbides (HECs) have attracted increasing attention due to their promising oxidation resistance properties. The oxidation behaviour of (Zr,Nb,Ta,Hf,Cr)C (HEC5-Cr), (Ti,V,Cr,Zr,Nb,Hf,Ta,W)C (HEC8-Cr), and (Ti,V,Zr,Nb,Mo,Hf,Ta,W)C (HEC8-Mo ...
Wang, X, Wang, Y, Zhang, B, Zhang, H, Reece, MJ   +4 more
core   +1 more source

High-entropy engineering improved the corrosion resistance of rare earth tantalates

Journal of Materials Research and Technology
High-entropy RETa3O9 ceramics have garnered significant interest in materials science due to their impressive high melting points and lower thermal conductivity.
Kunhui Yang, Liujia Tian, Yiling Huang, Xuemei Song, Fan Peng, Wei Zheng, Ziwei Liu, Yi Zeng   +7 more
doaj   +1 more source

High-entropy rare earth stannate ceramics: Acid corrosion resistant radiative cooling materials with high atmospheric transparency window emissivity and high near-infrared solar reflectivity

Journal of Advanced Ceramics
In response to the development of the concepts of “carbon neutrality” and “carbon peak”, it is critical to developing materials with high near-infrared (NIR) solar reflectivity and high emissivity in the atmospheric transparency window (ATW; 8–13 μm) to ...
Tao Chen, Yanyan He, Yanyu Pan, Kaixian Wang, Minzhong Huang, Liyan Xue, Yazhu Li, Fan Yang, Yanchun Zhou, Heng Chen   +9 more
doaj   +1 more source