宽温低损耗功率锰锌铁氧体材料的开发  

Development of power MnZn ferrite with low loss in wide temperature range

作　　者：汤小明 钟志敏 陈鑫渊 冯则坤 Tang Xiaoming;Zhong Zhimin;Chen Xinyuan;Feng Zekun(Jiangxi yaorun magnetoelectric Technology Co.,Ltd,Wuning 32300)

机构地区：[1]江西耀润磁电科技有限公司,武宁332300

出　　处：《磁性元件与电源》2022年第3期179-181,192,共4页Components and Power

摘　　要：分析了MnZn铁氧体的损耗构成,确定了获得低损耗的配方区间。引入Co^(2+)离子改变材料的各向异性常数K_(1),通过工艺优化,实验得到了最佳的烧结曲线。成功开发出了100KHz,200mT测试条件下,在25℃至140℃温度范围内,功率损耗小于350kw/m^(3)的宽温低损耗MnZn功率铁氧体材料。The loss composition of MnZn ferrite was analyzed,and the formula range of low loss was determined.C0^(2+)ion was introduced to change the anisotropy constant K_(1)of the material.Through process optimization,the best sintering curve was obtained.MnZn Power Ferrites with power loss less than 350kw/m^(3)Under the test conditions of 100kHz and 200mT in the temperature range of 25℃to 140℃were successfully developed.

关 键 词：锰锌铁氣体 宽温低损耗 各向异性常数KP Co2+离子掺杂 

分 类 号：TM2[一般工业技术—材料科学与工程]