采用熔盐法制备单相BaCo_2Fe_(16)O_(27)(Co_2W)六角铁氧体,探讨烧结温度、保温时间及熔盐与反应物质量比(R)对产物物相的影响,研究了Co_2W铁氧体的静磁性能及微波吸收性能.结果表明,单相Co_2W合成条件的温度为1250℃,保温时间为4 h,熔盐与反应物质量比R=3.Co_2W铁氧体比饱和磁化强度、剩余磁化强度和矫顽力分别为60.76(A·m~2)/kg、3.78(A·m~2)/kg和70.7×79.6A/m.与溶胶-凝胶法相比,熔盐法制备的Co_2W铁氧体具有更好的吸波性能.利用熔盐法制备铁氧体是提高以铁氧体为吸收剂的复合材料吸波性能的潜在途径.
参考文献
| [1] | Li ZW;Wu YP;Lin GQ;Chen LF .Static and dynamic magnetic properties of CoZn substituted Z-type barium ferrite Ba3CoxZn2-xFe24O41 composites[J].Journal of Magnetism and Magnetic Materials,2007(1):145-151. |
| [2] | Wang Jing et al.[J].Journal of Magnetism and Magnetic Materials,2006,268:186. |
| [3] | Zhang Haijun et al.[J].Materials Science and Engineering,2001,B84:252. |
| [4] | LI Haifeng et al.[J].Current Advances in Materials and Processes,2009,66:69. |
| [5] | Yoshihiro Hayashi;Toshio Kimura;Takashi Yamaguchi .[J].Journal of Materials Science,1987,21:2876. |
| [6] | Wohlfarth E P.Ferromagnetic Materials[M].New York:North-Holland Publishing Company,1982:403. |
| [7] | Sugimoto S et al.[J].IEEE Transactions on Magnetics,1999,35:3154. |
| [8] | Yusoff A N et al.[J].Journal of Applied Physics,2002,92:876. |
| [9] | Abbas SM;Dixit AK;Chatterjee R;Goel TC .Complex permittivity, complex permeability and microwave absorption properties of ferrite-polymer composites[J].Journal of Magnetism and Magnetic Materials,2007(1):20-24. |
| [10] | 张友刚.磁性材料[M].Chengdu:Chengdu Telecommunication Engineering College Press,1981:224. |
| [11] | Guozhu Shen;Zheng Xu;Yi Li .Absorbing properties and structural design of microwave absorbers based on W-type La-doped ferrite and carbon fiber composites[J].Journal of Magnetism and Magnetic Materials,2006(2):325-330. |
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