采用柠檬酸 Ｓoｌ－ｇｅｌ工艺合成了 ＢａＦｅ12Ｏ１９／ＳｉＯ２微晶玻璃陶瓷，并对其介电常数及其磁导率在１００ＭＨｚ～６ＧＨｚ下的变化规律进行了研究.结果表明，ＢａＦｅ１２Ｏ１９／ＳｉＯ２微晶玻璃陶瓷的合成与体系中 Ｆｅ／Ｂａ、烧结温度密切相关；其介电常数、磁导率基本都随测试频率的增加而下降；介电损耗值最大达到０．４０，磁损耗值较小．
BaFe12O19/SiO2 microcrystallite glass ceramics were prepared by citrate so1-gel pro- cess; The complex dielectric constant and complex permeability dispersion were investigated in 100MHz-6GHz range. The results obtained show those conditions such as Ba/Fe, sintering tem- perature have a close effect on the synthesis of BaFe12O19/SiO2 microcrystallite glass ceramics; the complex dielectric constant and complex permeability will decrease as the measuring frequency increasing, and maximum dielectric loss is 0.40, but magnetic loss nearoy zero.
参考文献
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