摘要
报道了新开发的纳米晶Fe725Cu1Nb15Mo15V1Si135B9合金的综合磁性能。新合金的直流起始磁导率和矫顽力水平分别达到13×104和064Am-1。在Bm=03T,f=100kHz和Bm=02T,f=200kHz条件下,铁损分别为578kW·m-3和884kW·m-3,这可与纳米晶Fe735Cu1Nb3Si135B9合金的相比,但比优良的功率MnZn铁氧体H7C4的低得多。在Bmf=(10～40)T·kHz条件下,在f=(20～6000)kHz范围内,描述了铁损。
The synthetical magnetic properties of nanocrystalline Fe 72.5 Cu 1Nb 1.5 Mo 1.5 V 1Si 13.5 B 9 alloy have been reported. The newly developed alloy possesses high d.c. relative initial permeability of 13×10 4 and low coercivity of 0.64Am -1 . Under the conditions of B m=0.3T, f=100kHz and B m=0 2T, and f=200kHz, the core losses of the new alloy are 578kW·m -3 and 884kW·m -3 respectively, which can be comparable with those of nanocrystalline Fe 73.5 Cu 1Nb 3Si 13.5 B 9 alloy, while are much lower than those of the typical superior power Mn Zn ferrite H 7C4 . Under the conditions of B m f=(10～40)T·kHz and in the wide frequency range of f=(20～6000)kHz, the behavior of core loss, corresponding amplitude permeability and dynamic coercivity has been described.
出处
《金属功能材料》
CAS
2000年第1期16-21,共6页
Metallic Functional Materials
基金
国家非晶微晶合金工程技术研究中心资助
关键词
纳米晶合金
起始磁导率
铁损
磁性能
nanocrystalline alloy, initial permeability, core loss
