Bi_2O_3-MoO_3复合掺杂对高磁导率MnZn铁氧体磁特性的影响  

Effect of Bi_2O_3-MoO_3 Addition on Magnetic Properties of Mn-Zn Ferrites with High Permeability

作　　者：迟煜頔[1] 荆鹏[1] 许启明[2] 

机构地区：[1]西北有色金属研究院金属多孔材料国家重点研究实验室,陕西西安710016 [2]西安建筑科技大学材料科学与工程学院,陕西西安710055

出　　处：《金属功能材料》2009年第3期21-24,共4页Metallic Functional Materials

摘　　要：研究了Bi2O3-MoO3复合掺杂对高磁导率MnZn铁氧体磁特性及微观结构的影响。研究结果表明适当配比的Bi2O3-MoO3复合掺杂有利于促进晶粒均匀致密化,提高样品的起始磁导率。在配方中,当掺杂总量为0.08%(质量)、Bi2O3∶MoO3=4∶6时,晶粒均匀,材料起始磁导率达到12039,可以用于制备需要具有较大晶粒、高磁导率的材料。The effect of Bi2O3-MoO3 addition on the microstructure mixed dopants and magnetic properties of Mn-Zn ferrite was investigated. It is shown that mixed-dopeants are beneficial to densification and grain uniformity of manganese-zine ferrite which results in the improvement of initial permeability. At 0. 08wt% of Bi2O3-MoO3 addition （Bi2O3 ： MoO3 =4 ： 6）, the products with initial permeability of 12039 and more uniform grain are obtained. The process can be used for preparing material with bigger grain size and high permeability.

关 键 词：MNZN铁氧体 Bi2O3-MoO3复合掺杂 起始磁导率 

分 类 号：TM277[一般工业技术—材料科学与工程]