摘要
研究了460～640℃等温退火后纳米晶（FexCo1-x）73.5Cu1Nb3Si13.5B9（x=0.5，1）合金的初始磁导率麒随温度变化。与双相纳米晶Fe73.5Nb3Si13.5B9合金相比，（Fe0.5Co0.5）73.5Cu1Nb3Si13.5B9合金室温下的磁导率降低，但晶化相和非晶相居里温度明显升高，并显著提高了合金在高温下的软磁性能。初步探讨了改善纳米晶合金高温磁性的机理。
Temperature dependence of initial permeability was investigated for nanocrystalline （FexCo1-x）73.5Cu1Nb3Si13.5B9（x =0.5,1） alloys annealed at 460-640℃ for 0.5h. Contrasted with nanocrystalline Fe73.5Nb3Si13.5B9 soft magnetic alloy, the initial permeability gi of （Fe0.5Co0.5）73.5Cu1Nb3Si13.5B9 alloy at room temperature was decreased, however, the Curie temperatures of the residual amorphous phase and the crystalline phase were obviously enhanced, so the high-temperature soft magnetic properties were markedly improved and the μi could keep stable up to 600℃. The mechanism that the high temperature soft magnetic properties could be improved by partially replacing Fe with Co in Fe73.5Cu1Nb3Si13.5B9 alloy was also discussed.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A03期957-959,共3页
Journal of Functional Materials
基金
国家自然科学基金资助项目（50271047）.
关键词
纳米晶合金
初始磁导率
高温磁性
nanocrystalline alloy
initial permeability
high-temperature soft magnetic properties
