P_2O_5掺杂对高磁导率MnZn铁氧体性能的影响  

Effects of P_2O_5 Addition on the Properties of High Permeability MnZn Ferrite

作　　者：戴煜辉[1] 尉旭波[1] 苏桦[1] 张怀武[1] 

机构地区：[1]电子科技大学微电子与固体电子学院,四川成都610054

出　　处：《磁性材料及器件》2005年第2期29-30,共2页Journal of Magnetic Materials and Devices

摘　　要：为获得高磁导率MnZn铁氧体材料,研究了P2O5掺杂对MnZn铁氧体微观结构及电磁性能的影响。少量掺杂可使铁氧体晶粒尺寸增大,均匀性改善,起始磁导率提高。但若掺杂过量,晶粒中气孔率增加,起始磁导率下降,损耗也大为增加。在配方为(Zn0.454Mn0.493Fe2+0.053)Fe23+O4的材料中,当P2O5掺杂量为0.10wt%时,起始磁导率可达10345。To get high initial permeability soft magnetic material, we examined the effect of added P2O5 on the microstructure and magnetic properties of MnZn ferrite. We can conclude that a small quantity of P2O5 addition could increase the diameter of crystalline grains, improve uniformity and initial permeability. If excessive P2O5 is added, porosity and core losses increase, and the initial permeability decreases. With 0.10wt% P2O5 addition in (Zn0.454Mn0.493Fe2+0.053 ) Fe23+O4 , initial permeability of 10345 is obtained.

关 键 词：MNZN铁氧体 P205掺杂 起始磁导率 

分 类 号：TM277.1[一般工业技术—材料科学与工程]