铁酸铋微波吸收性能的研究进展

Progress in Microwave Absorption Properties of Bismuth Ferrites

铁酸铋(BiFeO_3)在室温下同时具备铁电性和反铁磁性两种有序结构,可作为微波吸收材料,但块体材料本身微波吸收性能达不到10 dB的要求,所以需要采取掺杂、复合等手段调控其电磁参数匹配程度以提高其微波吸收性能。本文综述了掺杂、复合手段调控铁酸铋(BiFeO_3)性能的研究成果,分析了性能增强机制,指出了进一步改善铁酸铋微波吸收性能的可能途径。

Due to its ferroelectric and antiferromagnetic properties,bismuth ferrite is generally focused as microwave absorption materials.However,the microwave absorbing property of bismuth ferrite is not strong enough to 10 dB,and further modification by doping and compounding is needed to improve its electromagnetic parameters.In this paper,the research of bismuth ferrite as microwave absorbing materials are summarized,and the way is put forward to further improve its microwave absorbing property.