退火温度对FeCoNbVSiBCu合金高频性能的影响  

The dependence of relaxation frequency on different annealing temperatures of FeCoNbVSiBCu alloys

作　　者：王光建[1] 王治[2] 李占峰[1] 汤志伟[1] 

机构地区：[1]河北工程大学理学院,河北邯郸056038 [2]天津大学理学院,天津300072

出　　处：《河北建筑科技学院学报》2006年第3期106-108,共3页Journal of Hebei Institute of Architectural Science & Technology

基　　金：国家自然科学基金项目(50271047);天津市自然科学基金项目(003601811)

摘　　要：研究了经不同温度退火后纳米晶合金(Fe0.5Co0.5)73.5Nb2V1Si13.5B9Cu1的磁化曲线及磁谱曲线。实验结果表明,(Fe0.5Co0.5)73.5Nb2V1Si13.5B9Cu1合金在460℃退火可获得良好的软磁性能。随退火温度的升高,纳米晶合金的畴壁钉扎场逐渐增加,初始磁导率降低,其截止使用频率却有明显提高。实验发现,经不同温度退火生成的纳米晶合金其在很宽的温度范围内基本保持不变,因此可以通过提高退火温度适当降低初始磁导率来提高纳米晶合金的截止使用频率范围。The soft magnetic properties and permeability - frequency spectra of （ Feo.5 Co0.5 ）73.5 Nb2V1Sil3.5 BgCu1alloys annealed at different temperatures were investigated. The excellent soft magnetic properties were obtained for the alloys annealed at 460℃. With increasing of annealing temperature, the domain wall pinning strength became stronger, which results in a magnetic hardening marked by a drop in initial permeability μi and a rise in relaxation frequency f0. We also found tha μif0 kept unchanging at different annealing temperatures. In actual application, the frequency range of application of nanocrystalline soft magnetic alloys may be expanded by sacrificing permeability by controlling heat treatment conditions.

关 键 词：双相纳米晶合金 退火温度 初始磁导率 截止使用频率 

分 类 号：O482.5[理学—固体物理]