摘要
用柠檬酸溶胶凝胶法制备了Cu、Zr共掺钡铁氧体前驱体,研究煅烧温度对其物相的影响及Cu、Zr共掺对其吸波性能的影响。研究发现前驱体[BaFe11.2(Cu0.5Zr0.5)0.8O19]在1 200℃煅烧1 h,得到了单相的钡铁氧体。随着Cu、Zr掺量的增加,铁氧体的吸波性能提高。当Cu、Zr掺入量为0.8时,铁氧体的吸波性能最好,在10.4 GHz时,最大反射损耗达-7.81 dB。
The barium ferrite precursors gels were prepared with sol-gel process by using citric acid.The effect of calcination temperature on its phase and the effect of multiple doping（Zr,Cu） on microwave absorbing properties were studied.The barium ferrite was synthesized at 1 200℃ for 1 h.The absorption properties of the ferrite could be improved by increasing doping content.The absorbing properties of the ferrite is the best,with reflection loss of-7.81 dB at 10.4 GHz when the content of copper and zirconium is 0.8（BaFe12-x（Cu0.5Zr0.5） xO19,x = 0.8）.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2010年第4期41-43,共3页
Aerospace Materials & Technology
基金
陕西省教育厅基金(09JK378)
陕西理工学院基金(SLG0803)
关键词
多元掺杂
钡铁氧体
溶胶-凝胶
吸波性能
Multiple doping
Barium ferrite
Sol-gel process
Absorbing properties
