MAGNETIC PROPERTIES AND APPLICATIONS OF NEWLY-DEVELOPED NANOCRYSTALLINE Fe_(73.5)Cu_1Nb_2V_1Si_(13.5)B_9 ALLOY  

MAGNETIC PROPERTIES AND APPLICATIONS OF NEWLY DEVELOPED NANOCRYSTALLINE

作　　者：张延忠[1] 

机构地区：[1]上海钢铁研究所

出　　处：《功能材料与器件学报》1997年第3期162-168,共7页Journal of Functional Materials and Devices

摘　　要：报道了新开发的纳米晶Ｆｅ７３．５Ｃｕ１Ｎｂ２Ｖ１Ｓｉ１３．５Ｂ９合金的综合软磁性能。新合金的高频铁损水平为：Ｐ３／１００ｋ＝５１０ｋＷ·ｍ－３，Ｐ２／２００ｋ＝７４８ｋＷ·ｍ－３，Ｐ２／５００ｋ＝３６７１ｋＷ·ｍ－３和Ｐ０．５／１０００ｋ＝８７１ｋＷ·ｍ－３。新合金的铁损比早期开发的纳米晶Ｆｅ－Ｃｕ－Ｎｂ－Ｓｉ－Ｂ合金的低且明显低于优良的功率Ｍｎ－Ｚｎ铁氧体Ｈ７ｃ４的铁损。对铁损与频率和幅值磁通密度的关系进行了分析。也报道了新合金在若干方面的实际应用。The synthetical soft magnetic properties are reported for the newly developed nanocrystalline Fe 73.5 Cu 1Nb 2V 1Si 13.5 B 9 alloy. The levels of high frequency core losses of the new alloy are P 3/100k =510kW· m -3 , P 2/200k =748kW·m -3 , P 2/500k =3671kW· m -3 andP 0.5/1000k =871kW·m -3 . They are lower than those of the early developed nanocrystalline Fe Cu Nb Si B alloys and significantly lower than those of the superior power Mn Zn ferrite H 7c4 . The dependences of core loss on frequency and amplitude flux density have been analysed. The practical applications of the new alloy to several aspects are also reported.

关 键 词：纳米晶 软磁合金 磁导率 高频铁损 脉冲磁导率 

分 类 号：TM274[一般工业技术—材料科学与工程]