Nd_2O_3掺杂对YIG铁氧体微观结构及磁性能的影响  

Influence of Nd_2O_3 addition on microscopic structure and magnetic properties of yttrium iron garnet

作　　者：高建强[1] 邓江峡[1] 郑鹏[1] 郑梁[1] 秦会斌[1] 

机构地区：[1]杭州电子科技大学新型电子器件与应用研究所,浙江杭州310018

出　　处：《电子元件与材料》2016年第5期40-43,共4页Electronic Components And Materials

摘　　要：采用固相反应烧结法制备了铁氧体材料Y_(3-x)Nd_xFe_5O_(12)(0≤x≤2),研究了不同烧结温度和Nd^(3+)掺杂量对样品微观结构和磁性能的影响。发现在Nd^(3+)掺杂量相同的情况下,样品密度随烧结温度的升高而升高,最终在1340℃接近饱和;晶格常数随着Nd^(3+)掺杂量的增加而增大,当x>1.5时,样品出现杂相;饱和磁化强度随着Nd^(3+)掺杂量的增加先增大后减小,x=1时,样品的饱和磁化强度达到最大值31.9 A·m^2·kg^(–1)。A series of Y_（3–x）Nd_xFe_5O_（12）（0≤x≤2） ferrite samples were prepared by solid-state sintering method. The influence of sintering temperature and different Nd3＋ concentrations on microstructure and magnetic properties were studied. It is found that the densities of samples increase with the increasing sintering temperature, and finally saturate at 1 340 ℃. The crystal lattice is in direct proportion to the Nd3＋ concentration. However, the secondary phase appears when x exceeds 1.5. The saturation magnetization increases with the increasing Nd3＋ concentration, and reaches a maximum of 31.9 A·m2·kg–1 when x = 0.1, then it decreases continuously.

关 键 词：YIG铁氧体 烧结温度 微观结构 ND2O3 掺杂量 饱和磁化强度 

分 类 号：TM277[一般工业技术—材料科学与工程]