CaCO3掺杂对MnZn功率铁氧体微观结构和性能的影响
Effects of CaCO3 Doping Content on Microstructure and Magnetic
杨 涛1, 许启明1, 郝利军2
点击:5852次 下载:0次
作者单位:1. 西安建筑科技大学 材料科学与工程学院, 陕西 西安 710055; 2. 陕西金山电器有限公司, 陕西 咸阳 712021
中文关键字:CaCO3掺杂; 微观结构; 磁性能; 损耗
英文关键字:CaCO3 doping; microstructure; magnetic properties; power loss
中文摘要:采用传统陶瓷工艺制备了Zn0.16Mn0.73Fe2.11O4铁氧体材料, 研究了CaCO3掺杂量对烧结试样微观组织和磁性能的影响。结果表明,适量的掺杂CaCO3能改善材料的微观结构,并且能明显提高材料的磁性能。当掺杂量为0.06wt%时,样品拥有最佳的磁性能,其中μi=3110,25℃测试的BS=535 mT,Br=69 mT,HC=11.5 A/m,100 kHz、200 mT下测试的PCV~T曲线最低并且平缓,最低损耗PCV=297 kW·m-3。
英文摘要:Zn0.16Mn0.73Fe2.11O4 ferrite material was prepared by conventional ceramic technique. The influences of CaCO3 doping content on the microstructure and magnetic properties of MnZn ferrite were investigated by doping different CaCO3 content. The results show that the moderate addition of CaCO3 can obviously improve the microstructure and enhance the soft magnetic properties. When CaCO3 concentration is 0.06wt%, the optimum magnetic property is μi=3110, BS(25 ℃)=535 mT, Br=69 mT, HC=11.5 A/m. The PCV~T (100 kHz、200 mT) curve is gently, and the minimum power loss (PCV) is 297 kW·m-3.