摘要
本文利用水热法合成了六角形磁铅石结构的ＢａＮｄｘＦｅ（１２－ｘ）Ｏ（１９）铁氧体，用Ｘ射线衍射仪、透射电子显微镜和振动样品磁强计等仪器对粉末的结构、形貌和磁学性能进行了研究，并讨论了Ｎｄ（３＋）对钡铁氧体磁学性能的影响。结果表明，Ｎｄ（３＋）可以明显提高ＢａＦｅ（１２）Ｏ（１９）粉末的矫顽力。
The hexagonal BaNd_xFe_(12-x)O_(19) ferrites with M-type strusture were synthesized by hydrothermal method. The preparation method, process, and the effects of pH value and temperature were examined in details. Pure Nd-hexaferrites were produced at lower temperature. X-Ray diffractometry, magnetic analysis and transmission electron microscope obervations were used for characterizing the synthesized materials. The results shown that rare earth ion Nd￣(3+) can improve the magnetic properties of BaFe_(12)O_(19). The coercive force of BaNd_xFe_(12-x)O_(19) is approximately 50% higher than that of BaFe_(12)O_(19). The mechanism of Nd￣(3+) in BaFe_(12-x)O_(19) was discussed.
出处
《稀土》
EI
CAS
CSCD
1996年第2期14-17,共4页
Chinese Rare Earths
基金
黑龙江省自然科学基金吉林大学无机水热合成实验室
关键词
水热法
稀土
铁氧体
Ferrite
Rare earth
Hydrothermal method.
