Enhanced microwave absorption properties of barium ferrites by Zr4+-Ni2+ doping and oxygen-deficient sintering
Enhanced microwave absorption properties of barium ferrites by Zr4+-Ni2+ doping and oxygen-deficient sintering
复制标题
Zr4-Ni2掺杂及缺氧烧结增强钡铁氧体的微波吸收性能
DOI：
10.1016/j.jmmm.2019.165828
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发表时间：
2020-01
影响因子：
2.7
通讯作者：
Xu Feng
中科院分区：
文献类型：
--
作者：
Zhang Yujing;Liu Chuyang;Zhao Xinrui;Yao Minhao;Miao Xuefei;Xu Feng
为了在2-18 GHz频率范围内获得良好的微波吸收性能，采用溶胶-凝胶法和后续烧结的方法合成了共掺杂BaFe12-2x(ZrNi)xO19的BaFe12-2x(ZrNi)xO19。在Ar气氛中烧结的x∼为0.6的铁氧体获得了6.9 GHz的带宽展宽和−5 9.3 分贝的强微波吸收.这种优异的微波吸收性能既归因于Zr4+-Ni2+取代有效地移动了共振峰，又由于缺氧烧结过程中产生晶格空位而提高了介电损耗。这项工作将有助于理解操纵共振行为的本质，并进一步提高传统铁氧体吸波材料的微波吸收效率。
To achieve excellent microwave absorption properties within the frequency range of 2–18 GHz, Zr4+-Ni2+co-doped barium ferrites BaFe12-2x(ZrNi)xO19have been synthesized through a sol–gel process and subsequent sintering. Broadened bandwidth of ∼6.9 GHz and strong microwave absorption of −59.3 dB is attained for the ferrite with x = 0.6 and sintering in Ar. The excellent microwave absorption properties are attributed to both the effective shifting of resonance peaks by Zr4+-Ni2+substitution and the enhanced dielectric loss by generating lattice vacancies through the oxygen-deficient sintering process. This work would be helpful to understand the nature of manipulating the resonance behaviors and further improving the microwave absorption efficiency of traditional ferrite absorbers.
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影响因子：
3.2
作者：
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通讯作者：
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影响因子：
2.7
作者：
Fang, HC;Yang, Z;Wang, CS
通讯作者：
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影响因子：
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通讯作者：
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影响因子：
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影响因子：
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作者：
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通讯作者：
Zhang, Zhiyi