摘要
研究了退火温度对Fe15.38Co61.52Cu0.6Nb2.5Si11B9纳米晶软磁合金交流磁性的影响,并且分析了获得较好软磁性能的可能原因.合金的电阻率随着退火温度的增加逐渐降低.μ'f0值与饱和磁化强度Ms之间没有明显的正比关系,合金的旋磁比γ随退火温度的升高应呈不规则的变化趋势.当退火温度Ta=873K时,Fe15.38Co61.52Cu0.6Nb2.5Si11B9纳米晶软磁合金具有最大的高频品质因数和弛豫频率,Q(1MHz)=23.1,f0=25.02MHz.
In this paper, the influence of annealing temperature on AC magnetic property of Fe15.38Co61.52Cu0.6Nb2.5Si11B9 nanocrystalline alloy is investigated, and the possible reasons for better high-frequency soft magnetic properties are analyzed. The resistivity decreases as annealing temperature increases. The value of μ′f0 is not in direct proportion to saturation magnetization Ms because of irregular variation of the gyromagnetic ratio with annealing temperature. At annealing temperature Ta=873 K, the alloy has the largest quality factor and relaxation frequency, i.e., Q（1 MHz）=23.1 and f0=25.02 MHz.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2011年第9期612-616,共5页
Acta Physica Sinica
基金
国家自然科学基金(批准号:50972105)
天津市自然基金重点(批准号:08JCZDJC22700)
天津市教委资助项目(批准号:20090910)资助的课题~~
关键词
纳米晶合金
软磁材料
品质因数
热处理
nanocrystalline alloy
soft magnetic material
quality factor
heat treatment
作者简介
通讯联系人E-mail：lucydyh@163．com
