TY - JOUR
T1 - Several W-type barium ferrites with different Me 2
T2 - Preparation and the electromagnetic properties
AU - Wu, Yanfei
AU - Huang, Ying
AU - Zhang, Yinling
AU - Niu, Lei
PY - 2011/12
Y1 - 2011/12
N2 - The W-type ferrites, BaMe 2 Fe 16O 27, were prepared by sol-gel method. The performances of the ferrites were improved by changing the Me 2(Co 2, CoNi, CoZn). The structures, morphologies, magnetic properties and microwave absorption properties of the samples were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), vibrating sample magnetometer (VSM) and Vector network analyzer. According the SEM observations, it is found that all the ferrites showed a hexagonal platelet-like shape. The XRD results indicated that all the samples were W-type ferrite. The synthesized samples exhibited paramagnetism and strong magnetism. Besides, the composite, which was blend with paraffin BaCoZnFe 16O 27/paraffin, has a better microwave absorbing property than the other ferrites. Moreover, the reflection loss of one-layer absorber with the BaCoZnFe 16O 27 sample was calculated. The band width (with respect to -10 dB reflection loss) is 5.42 GHz at a matching thickness of 3.50 mm and the maximal reflection loss is -16.23 dB.
AB - The W-type ferrites, BaMe 2 Fe 16O 27, were prepared by sol-gel method. The performances of the ferrites were improved by changing the Me 2(Co 2, CoNi, CoZn). The structures, morphologies, magnetic properties and microwave absorption properties of the samples were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), vibrating sample magnetometer (VSM) and Vector network analyzer. According the SEM observations, it is found that all the ferrites showed a hexagonal platelet-like shape. The XRD results indicated that all the samples were W-type ferrite. The synthesized samples exhibited paramagnetism and strong magnetism. Besides, the composite, which was blend with paraffin BaCoZnFe 16O 27/paraffin, has a better microwave absorbing property than the other ferrites. Moreover, the reflection loss of one-layer absorber with the BaCoZnFe 16O 27 sample was calculated. The band width (with respect to -10 dB reflection loss) is 5.42 GHz at a matching thickness of 3.50 mm and the maximal reflection loss is -16.23 dB.
KW - Electromagnetic properties
KW - Inorganic non-metallic materials
KW - Microwave absorbing property
KW - Sol-gel method
KW - W-type barium ferrite
UR - https://www.scopus.com/pages/publications/84862972374
M3 - 文章
AN - SCOPUS:84862972374
SN - 1005-3093
VL - 25
SP - 607
EP - 612
JO - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research
JF - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research
IS - 6
ER -