@article{LI2026, 
author = {Qi LI and Fengwei GUO and Wei LIU and Lamei CAO and Jian JIAO},
title = {Fabrication and properties of (Zr0.2Ti0.2Ta0.2Nb0.2Cr0.2)B2 high-entropy ceramic by hot-press sintering},
year = {2026},
journal = {Journal of Aeronautical Materials},
volume = {46},
number = {7},
pages = {115-121},
keywords = {microstructure, mechanical property, hot-press sintering, high-entropy ceramic, boride},
url = {https://www.sciopen.com/article/10.11868/j.issn.1005-5053.2025.000126},
doi = {10.11868/j.issn.1005-5053.2025.000126},
abstract = {The five-component high-entropy boride ceramic (Zr0.2Ti0.2Ta0.2Nb0.2Cr0.2)B2 is successfully prepared via hot-press sintering at 1800 ℃. A systematic investigation is conducted on its phase composition, microstructure, mechanical properties and high-temperature stability. The results show that the ceramic primarily consists of a single high-entropy phase, with minor localized enrichments of Zr and Ta. The Vickers hardness and three-point flexural strength reach 19.03 GPa and 279.76 MPa, respectively, with the fracture surface exhibiting typical brittle transgranular fracture characteristics. After heat treatment at 1500 ℃ for 50 h, the microstructure of the high-entropy ceramic remains stable, showing no grain growth or precipitation of new phases. Neither hardness nor strength undergos significant changes, demonstrating excellent high-temperature structural stability and retention of mechanical properties.}
}