添加Bi_2O_3的Bi_Co_Zn取代Z型六角铁氧体低温烧结研究.pdfVIP

工艺·技术·应用 添加 Bi O 的Bi(Co) 、Zn 取代 Z 型六角铁氧体低温烧结研究 2 3 唐英明，贾利军，张怀武，殷水明，李 涛 （电子科技大学电子薄膜与集成器件国家重点实验室，四川成都 610054 ） 摘 要：采用固相反应法制备了添加Bi O 的Bi(Co) 、Zn 取代Z 型六角铁氧体材料。样品通过XRD 、SEM 2 3 进行表征，并用阻抗分析仪研究了材料的电磁性能。实验表明，少量的Bi 取代不会影响Z 相形成，但可以明显 降低成相温度；另外Zn 取代可以提高起始磁导率。最佳实验组分为Ba － Bi Co － Zn Fe － O (x=0.15, y =0.8) ， 3 x x 2+x y y 24 x 41 该组份加入2wt%的Bi O 作助烧剂、900℃烧结，可获得起始磁导率为4.2 的低温烧结材料。 2 3 关键词：Z 型六角铁氧体; Bi O 添加；Bi(Co),Zn 取代；电磁性能；低温烧结 2 3 中图分类号：TM277 文献标识码：B 文章编号：1001-3830(2011)01-0045-04 Investigation of low-temperature sintering of Z-type hexaferrite with Bi(Co),Zn substitution and Bi O additive 2 3 TANG Ying-ming, JIA Li-jun, ZHANG Huai-wu, YIN Shui-ming, LI Tao State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China Abstract: Z-type hexaferrite material with Bi(Co),Zn substitution and Bi O additive were prepared by 2 3 solid-state reaction method. The samples were characterized by X-ray diffraction and scanning electron microscopy (SEM). Electromagnetic properties were investigated using an impedance analyzer. Experimental results showed that minor Bi substitution does not destroy the phase formation of Z-type hexagonal ferrite, but lower the phase formation temperatu