摘要
采用固相球磨法制备了W型钡锌铁氧体粉体,使用X射线衍射仪、扫描电子显微镜和微波网络分析仪分别对其相组成、颗粒形貌和不同煅烧温度下铁氧体粉体的电磁特性进行测试分析。结果发现:煅烧温度为1300℃时生成了较纯的W型钡锌铁氧体相,形成了较为完整的六角片状结构。在6~12GHz频段,随着煅烧温度的增加,μ′、tanμ的值随之增大,并且当煅烧温度达1300℃时,其磁损耗达到最大。
Ferrite powders were prepared by classical ceramic method.Phase composition was analyzed by X-ray diffraction(XRD).A scan electron microscope(SEM) was used to study particle morphology.And the electromagnetic parameters of the ferrite were measured by using a network analyzer.It was found that hexagonal flake-shaped w-type ferrite was formed at 1300℃.At the range from 6 to 12 GHz,μ′、tan μ increased with increasing calcination temperature and the magnetic loss got to the highest value when the temperature reached at 1300℃.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2010年第1期110-113,共4页
Journal of Materials Science and Engineering
基金
国防基础研究项目资助
关键词
W型铁氧体
相形成过程
煅烧温度
电磁特性
w-type ferrite
calcination temperature
electromagnetic properties