| Autor: |
Xu, Zhi-Biao, Qi, Zhao-Hui, Wang, Guo-Wu, Liu, Chang, Cui, Jing-Hao, Li, Wen-Liang, Wang, Tao |
| Předmět: |
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| Zdroj: |
Chinese Physics B; Aug2022, Vol. 31 Issue 8, p1-9, 9p |
| Abstrakt: |
The high-performance electromagnetic (EM) wave absorption material Ba(CoTi) x Fe12â€"2 x O19@BiFeO3 was prepared by solid-state reaction, and its EM wave absorption properties were deeply studied. The results revealed that Ba(CoTi) x Fe12â€"2 x O19@BiFeO3 could obtain excellent absorption properties in hundreds of megahertz by adjusting the Co2+â€"Ti4+ content. The best comprehensive property was obtained for x = 1.2, where the optimal reflection loss (RL) value reaches â€"30.42 dB at about 600 MHz with thickness of 3.5 mm, and the corresponding effective absorption band covers the frequency range of 437 MHzâ€"1 GHz. Moreover, the EM wave absorption mechanism was studied based on the simulation methods. The simulated results showed that the excellent EM wave absorption properties of Ba(CoTi) x Fe12â€"2 x O19@BiFeO3 mainly originated from the internal loss caused by natural resonance, and the interface cancelation further improved the absorption properties and resulted in RL peaks. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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