Magnetic properties of La-Zn substituted Sr-hexaferrites by self-propagation high-temperature synthesis
来源期刊：Journal of Rare Earths2008年第1期
论文作者：游李顺 乔梁 郑精武 蒋梅燕 姜力强 盛嘉伟
文章页码：81 - 84
摘 要：The La-Zn substituted SrM-type ferrites with the composition of Sr1-xLaxFe12-xZnxO19 （x=0-0.4） were prepared by self-propagating high-temperature synthesis （SHS）. The single SrM phase was detected by XRD in the as-received samples by controlling the Fe contents in the reagents. The substitution of La3+ and Zn2+ obviously increased the magnetic properties of the as-prepared samples. The maximum im- provements of Br, Hcb and （BH）m were 14.4%, 15.3% and 30.7%, respectively compared with that of the samples without La-Zn substitution. Microstructure observation by SEM showed that the SHS method benefited forming the better particle features and achieving the higher Hcj in comparison with the traditional firing method.
游李顺，乔梁，郑精武，蒋梅燕，姜力强，盛嘉伟
摘 要：The La-Zn substituted SrM-type ferrites with the composition of Sr1-xLaxFe12-xZnxO19 （x=0-0.4） were prepared by self-propagating high-temperature synthesis （SHS）. The single SrM phase was detected by XRD in the as-received samples by controlling the Fe contents in the reagents. The substitution of La3+ and Zn2+ obviously increased the magnetic properties of the as-prepared samples. The maximum im- provements of Br, Hcb and （BH）m were 14.4%, 15.3% and 30.7%, respectively compared with that of the samples without La-Zn substitution. Microstructure observation by SEM showed that the SHS method benefited forming the better particle features and achieving the higher Hcj in comparison with the traditional firing method.
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