磁场诱导制备CoFe_2O_4颗粒的微波吸收性能  

MICROWAVE ABSORBING PROPERTIES OFMAGNETIC-FIELD INDUCED CoFe_2O_4 PARTICLES

作　　者：刘红艳[1,2] 李玉山[2] 王磊[2] 

机构地区：[1]北京科技大学物理系,北京100083 [2]菏泽学院物理系,山东菏泽274015

出　　处：《低温物理学报》2016年第1期31-34,共4页Low Temperature Physical Letters

基　　金：山东省高等学校科技计划项目(批准号:J15LJ55)资助的课题~~

摘　　要：利用化学共沉淀法在零磁场和0.5T磁场下合成CoFe_2O_4颗粒,样品退火温度800℃.X射线衍射图谱表明,磁场诱导的CoFe_2O_4颗粒结晶度变好.微波吸收性能测试结果表明,磁场诱导下制备的样品磁导率有所增加,这将更有利于实现阻抗匹配,提高吸波性能.CoFe2O4 particles have been fabricated based on the chemical precipitation route with zero magnetic field and magnetic field of 0. 5 T, and annealing temperature of 800℃, respectively. The results of X-ray diffraction spectroscopy indicate that the sample annealed in a magnetic field becomes well-crystaled. Microwave vector network analyzer demonstrates that the complex permeability has a great enhancement with increasing magnetic field, which is easier to achieve impedance matching and improve microwave absorbing property.

关 键 词：COFE2O4 磁场退火 复磁导率 微波吸收 

分 类 号：O614.812[理学—无机化学] TB34[理学—化学]