摘要
采用循环加热、冷却过程中测定交流初始磁导率的方法,研究了纳米晶Nix（Fe0.5Co0.5）73.5-xNb3Si13.5B9Cu1（x=5,10,15,20,25,30）合金在由室温升至380-730℃范围内的高温磁性与Ni含量的关系。结果表明：与双相纳米晶（Fe0.5Co0.5）73.5Nb3Si13.5B9Cu1合金相比,当Ni含量x≥15时可显著提高FeCo基纳米晶合金的初始磁导率,但同时降低了合金的居里温度。初步探讨了产生这种高温磁性变化的机理。
Temperature dependence of initial permeability was investigated from room temperature to 380～730℃.High-temperature magnetic properties and Ni content for Nix（Fe0.5Co0.5）73.5-xNb3Si13.5B9Cu1（x=5,10,15,20,25,30）alloys were analyzed by means of μi-T curves in heating-cooling cycles.Contrasted with nanocrystalline（Fe0.5Co0.5）73.5Nb3Si13.5B9Cu1 soft magnetic alloy,the initial permeability of FeCo-based nanocrystalline alloys were obviously enhanced when Ni content is x≥15;however,the Curie temperatures of the residual amorphous phase was decreased.The mechanism that the change of high-temperature magnetic properties was also discussed.
出处
《石河子大学学报（自然科学版）》
CAS
2011年第3期374-377,共4页
Journal of Shihezi University(Natural Science)
基金
国家自然科学基金项目(50871073)
关键词
FeCo基纳米晶合金
居里温度
高温磁性
FeCo-based nanocrystalline alloys
Curie temperature
high-temperature magnetic properties
