低功耗NiCuZn铁氧体的研究

Study on the Low Power Loss of NiCuZn Ferrite

摘要: 用传统陶瓷工艺制备了Ni_0.32Cu_0.10Zn_0.60O(Fe₂O₃)_0.98铁氧体材料,研究了添加V₂O₅对材料烧结特性和磁性能的影响。结果表明,当V₂O₅为0.12%(w)时,晶粒生长均匀、结构较好。此时在50kHz、150mT、100℃测试条件下,功耗有最小值(275.7 kW/m³),其值为未掺杂损耗(689.5 kW/m³)的40%。

Abstract: (Ni_0.32Cu_0.1Zn_0.60)O(Fe₂O₃)_0.98 ferrite was prepared by traditional ceramic process.Effects of V₂O₅ additives on the sintering behaviors and magnetic properties of NiCuZn ferrites were investigated.It was found that the minimum power loss as low as 275.7kW/m³(measured at a frequency of 50kHz,magnetic field 150mT and temperature of 100℃)for a homogeneous and fine-grained microstructure was achieved for sample with 0.12%(w) V₂O₅,decreased by 40% compared to the sample without adding V₂O₅.