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arXiv 2102.00802cond-mat.mtrl-sci
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Liquefaction-induced Plasticity from Entropy-boosted Amorphous Ceramics

Haidong Bian, Quanfeng He, Junhua Luan, Yu Bu, Yong Yang, Zhengtao Xu, Jian Lu, Yang Yang Li

英文摘要:

Ceramics are easy to break, and very few generic mechanisms are available for improving their mechanical properties, e.g., the 1975-discovered anti-fracture mechanism is strictly limited to zirconia and hafnia. Here we report a general mechanism for achieving high plasticity through liquefaction of ceramics. We further disclose the general material design strategies to achieve this difficult task through entropy-boosted amorphous ceramics (EBACs), enabling fracture-resistant properties that can withstand severe plastic deformation (e.g., over 95%, deformed to a thickness of a few nanometers) while maintaining high hardness and reduced modulus. The findings reported here open a new route to ductile ceramics and many applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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