低频无极灯用宽温低功耗高直流叠加MnZn铁氧体材料

采用传统的氧化物湿法工艺,使用基本配方为Fe2O3:Mn O:Zn O:Ni O=53.5:33:12:1.5(mol%),制备了一种可用于低频无极灯的Mn Zn功率铁氧体材料,分析了材料的起始磁导率、功耗和直流叠加特性。结果表明,得益于组合掺杂,材料具备宽温、低功耗、高直流叠加性能等优良电磁性能。分析了掺杂对改善材料性能的作用机理,为开发此类宽温、低功耗、高直流叠加软磁铁氧体材料提供有益的参考。

Wide temperature,low loss and high DC bias MnZn ferrite material for low frequency electrodeless lamp

Applying conventional wet oxide process and basic formula of Fe2O3:MnO:ZnO:NiO =53.5:33:12:1.5 (mol%), MnZn power ferrite was prepared for low frequency electrodeless lamp. The initial permeability,power loss and DC bias characteristics were tested, and it shows that the materials features wide temperature, low power loss and high DC bias profitting from corresponding additives. The mechanism of improvement in the preperties was analyzed, which is conference for developing power ferrite with wide temperature, low power loss and high DC bias.