Magnetic Properties of CozZ Ferrite Sintered in Oxygen Atmosphere

摘要：

Z-type hexaferrites Ba1.5Srx(x=1.5) Co2Fe24041 (Co2Z) powders were prepared by standard ceramic method and sintered in oxygen atmosphere. The crystal structure, microstructure and magnetic properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and impedance analyzer (HP4291B) from IMHz-1.8GHz, respectively. Experimental results show that through introducing sintering in oxygen atmosphere in ordinary technology, although initial permeability of sintered samples was slightly lower, but quality factor Q increased apparently especially in high frequency under GHz. As sintering temperature increase, initial permeability decrease, cut-off frequency and nature resonance frequency shift toward higher frequency, and the quality factor increase. An initial permeability of 5 and quality factor Q of 14 (1GHz) were obtained for the sample with pre-sintering temperature at 1250℃ in oxygen atmosphere.

关键词： CozZ ferrite initial permeability microstructures quality factor

作者: L.F.Bian Y.L.Liu Y.X.Li H.W.Zhang

作者单位: Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,Sichuan,China

会议类型: 国际会议

会议名称: The 10th International Conference on Ferrites(2008中国国际铁氧体研讨会)

会议地点: 成都

会议语种:英文

页码: 374-377

在线出版日期: 2008-10-10（万方平台首次上网日期，不代表论文的发表时间）