摘要
采用固相反应法制备了掺镝W型钡镍铁氧体粉体。利用X射线衍射仪及扫描电子显微镜对其晶体结构及微观形貌进行分析,使用微波网络分析仪对其微波电磁性能进行研究。结果表明:1350℃时,不同Dy掺杂量下均形成了纯度较高的W型钡镍铁氧体,六角片状结构完整。在15～18GHz频段:μ″,tanμ值随Dy掺杂量的增加而增大,掺镝摩尔分数x=0.08时达到最大。
Ferrite Ba1-xDyxNi2Fe16O27 powders were prepared by solid state method.Phase composition and particle appearance were analyzed with X-ray diffraction(XRD)and scan electron microscope(SEM).Network analyzer was used to study electromagnetic parameters.It was found that powders crystallized into W-type ferrite phase and formed W-type hexagonal plane ferrite at 1350 ℃.In the range from 15 to 18 GHz,μ″ and tanμ increased with the addition of Dy and reached the highest values when doping molar fraction x=0.08.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2010年第2期307-311,共5页
Chinese Journal of Rare Metals
基金
国防基础研究项目资助
关键词
W型铁氧体
掺杂
微波电磁参数
稀土
W-type ferrite
doping
microwave electromagnetic parameter
rare earths
