Al 替代和烧结温度对 NiZn 铁氧体磁性能的影响

Al substituted and sintering temperature of Ni-Zn ferrites for magnetic properties

采用陶瓷工艺制备了 Al 替代的 Ni0．5 Zn0．5 Alx Fe2-x O 4（x ＝0～0．10）铁氧体材料,用 XRD、B-H分析仪和阻抗分析仪对其结构和磁性能进行了研究.实验发现,最佳烧结温度为1250℃,过高和过低的烧结温度不利于降低磁芯损耗.当 Al3＋替代量 x ＝0．06时,铁氧体能获得较好综合磁性能.

Al substituted Ni0.5 Zn0.5 Alx Fe2 -x O 4 (x =0-0.10)ferrite materials were prepared by using ceramic tech-nology,XRD,B-H analyzer and impedance analyzer were applied to investigate its structural morphological and magnetic properties.The experimental results indicate that the best sintering temperature was 1 250 ℃ and an over-high or over-low sintering temperature was adverse to reduce the magnetic core loss.Ferrite can achieve a preferably integrated performance with x =0.06.