稀土掺杂W型铁氧体BaCoZnCe_xFe_(16-x)O_(27)的制备与吸波性能研究

Some Useful Results about Absorbing Properties of Rare Earth Doped W-Type Ferrite BaCoZnCe_xFe_(16-x)O_(27)

用溶胶-凝胶法制备了W型铁氧体BaCoZnCexFe16-xO27(x=0,0.05,0.1,0.15,0.2),考察了Ce3+掺杂对W型铁氧体性能的影响。采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、振动样品磁强计(VSM)和矢量网络分析仪等手段表征了材料的物相组成、形貌,并且分析了它的磁性能和微波吸收性能。研究表明,制得的Ce3+掺杂W型铁氧体呈六角片状,样品呈顺磁性,其中x=0.15时样品的磁性能及微波吸收性能最好,吸收率小于-10 dB的吸收频带宽度达到了3.5 GHz,吸收峰值为-11.34 dB。

Sections 1 and 2 of the full paper explain the research mentioned in the title, some of whose results we believe are useful and whose core consists of： ＂The W-type ferrites, BaCoZnCexFe16-xO27 （x = 0,0. 05,0. 1,0. 15, 0. 2）, were prepared by sol-gel method. We Studyed the Influence on the performance of the Ce3＋ doped W-type ferrites. We characterized the structures, morphologies, magnetic properties and microwave absorption properties of the samples with X-ray diffractometer （ XRD）, scanning electron microscope （ SEM）, vibrating sample magnetome- ter （VSM） and Vector network analyzer. ＂. We present the experimental results in Figs 1 through 7 and Tables 1 and 2. These results and their analysis lead preliminarily to thefollowing three useful results： （1） all the samples are W-type ferrites and exhibit paramagnetism; （2） when x = 0. 15, magnetic and microwave absorbing performance are both the best; （3） the band width （with respect to -10 dB reflection loss） is 3.5GHz at a matching thickness of 3.0 mm and the maximal reflection loss is - 11.34 dB.