首页|Ceramic-based meta-material absorber with high-temperature stability

Ceramic-based meta-material absorber with high-temperature stability

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With the continuous exploration of uncharted and extreme environments,enhanced temperature robust-ness of passive devices has become particularly important.In this study,a ceramic-based meta-material absorber with exceptional temperature stability is developed using a fusion design approach that combines rare metal-based tungsten bronze structural ceramics and meta-materials.Specifically,the absorbance of the meta-material array based on Mie resonance exceeds 49.0％in both waveguides and free space,approaching the theoretical limit.Accord-ing to impedance analysis,the absorption performance can be distinctly correlated with the dielectric loss(Qf).Nota-bly,the high-temperature robustness is verified to still be effective at 400 ℃.These advancements in our design allow for the use of monolithic materials in fabricating temperature-stable perfect absorbers,providing greater freedom in the dielectric performance and expanding their potential applications,including in space exploration and 5G millimeter-wave scenarios.

Temperature robustnessMeta-material absorberMicrowave absorptionRare metal-based ceramicsMiniaturization

Xing-Cong Chen、Wei-Jia Luo、Run-Ni Zhao、Yong-Zheng Wen、Ji Zhou

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State Key Laboratory of New Ceramics and Fine Processing,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China

National Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaChina Postdoctoral Science Foundation

2022YFB3806000523320069216312952072203522023702023T160359

2024

10.1007/s12598-024-02791-w

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(9)
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