High-performance Ferroelectric Microwave Absorption Materials

LI Yong, YANG Hui-jing, HAO Xi-hong, CAO Mao-sheng

Surface Technology ›› 2020, Vol. 49 ›› Issue (2) : 41-55.

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Surface Technology ›› 2020, Vol. 49 ›› Issue (2) : 41-55. DOI: 10.16490/j.cnki.issn.1001-3660.2020.02.005
Special Topic—Electromagnetic Functional Materials

High-performance Ferroelectric Microwave Absorption Materials

  • LI Yong1, HAO Xi-hong1, YANG Hui-jing2, CAO Mao-sheng3
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Abstract

Due to high polarization, excellent chemical and thermal stability, ferroelectric materials have attracted great attention of the researcher in microwave absorption field. Many works about ferroelectric microwave absorption materials were reported in the last twenty years. Here, the loss mechanisms and performances of microwave absorption of typical ferroelectric materials are summarized in detail. For the electrical loss mechanisms of ferroelectrics, dielectric loss, electric conductance loss and interface loss mechanism are summarized. For multiferroics and ferroelectric-magnetism hybrid composites, magnetic loss and magnetic-dielectric synergy mechanism are summarized. Simultaneously, the constitutive principle and action principle of the loss types are summarized. For the microwave absorption performances, the properties of BiFeO3- and BaTiO3-based materials in recent years are summarized, including single phase materials, doped materials and composite materials of them. The properties of microwave absorption at room temperature are compared with that at high temperature. Moreover, according to the relation between structure and microstructure of ferroelectric materials and absorption intensity and effective absorption bandwidth of ferroelectric materials, the microwave response mechanisms are summarized. Finally, the problems that hinder the growth of ferroelectric microwave absorption materials are analyzed, and the development outlook of the materials in the future is stated.

Key words

ferroelectric; microwave absorption; dielectric; loss; electric conductance; relaxation

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LI Yong, YANG Hui-jing, HAO Xi-hong, CAO Mao-sheng. High-performance Ferroelectric Microwave Absorption Materials[J]. Surface Technology. 2020, 49(2): 41-55

Funding

Supported by Youth Program of National Natural Science Foundation of China (51702169, 11604237), the Natural Science Foundation of Inner Mongolia (2017BS0503), the Innovation Fund of Inner Mongolia University of Science and Technology (2016QDL-B03), and the Young Innovation Talents Fund of Baotou
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