摘要
本文介绍纳米晶软磁合金Fe_(74.7-x)Cu_1NbxV_(1.8)Si_(13.5)B_9(x=1、1.5、2)的综合磁性能。x=2合金的高频铁损为:P_(3/100K)=468KW/m^3;P_(2/200K)=706Kw/m^3;P_(2/500K)=3620KW/m^3;P_(0.5/1000K)=810KW/m^3,优于Fe-Cu-Nb-Si-B类纳米晶合金的水平。所考查三种合金的铁损都大大优于优良的Mn-Zn功率铁氧体H_(7C4)。考查了起始磁化率的温度关系,观察到纳米晶粒系统的超顺磁行为。对实验结果进行了初步分析。
In the present paper,the synthetical soft magnetic properties are reported for newly-developed nanocrystalline Fe74.7-2Cu, NbxV1. 8Si13 .5B0(x = l,1.5,2.0)alloys.The levels of high-frequency core loss of the alloy with x = 2are as follows.P3/100K = 468KW/m3,P2/200K = 706KW/m3;P2/500K = 3620 KW/m8;P0.5/ 100K= 468KW/m3;they are lower than those of Fe-Cu-Nb-Si-B nanocrystalline alloys.The high-frequency core losses of three new alloys are much lower than those of the superior power Mn-Zn ferrite H7C4.The ten pe-rature dependences of initial susceptibility of new alloys have been investiga ted. The new alloys show superparamagnetic behavior at elevated temperatures after optimum annealing.The experimental results have initially been a-nalysed.
出处
《上海钢研》
1994年第5期9-15,共7页
Journal of Shanghai Iron and Steel Research
关键词
纳米晶合金
软磁合金
磁导率
磁化率
超顺磁性
nanocrystalline alloy relative effective permaebility relative initial susceptibility core loss superparamagnetism
