摘要
为了降低铁镍系软磁合金材料的居里温度以改善其在烟具发热领域的温度适用性,本工作利用粉末冶金方法制备铁镍合金软磁材料,将不同成分的合金粉末经球磨混料后压制成型,并在1380℃和1400℃温度下进行真空烧结。采用X射线衍射仪(XRD)、电子探针显微分析仪、软磁直流B-H仪及PPMS等表征技术分析了Cr添加对FeNi合金组织性能的影响。结果表明:1400℃的烧结温度下制得的样品组织均匀致密,综合导磁性及导电性能更好。软磁材料磁性能和成分密切相关,Cr元素的加入使得铁镍合金致密度以及硬度均得到提高,也使得铁镍合金的电阻率升高,同时磁导率减小,居里温度明显降低。
To reduce the Curie temperature of iron-nickel soft magnetic alloy materials and improve their temperature applicability in the field of smoke heating,powder metallurgy is used to prepare iron-nickel alloy soft magnetic materials.The alloy powder of different components is pressed by ball grinding mixture and vacuum sintering at 1380℃and 1400℃.The influence of Cr addition on the tissue properties of FeNi alloy is analyzed by X-ray diffractometer(XRD),electron probe microanalyzer,soft magnetic DC B-H meter,and PPMS.The results show that the samples produced at a sintering temperature of 1400℃ have a uniform and dense organization with better comprehensive magnetic and electrical conductivity.The magnetic performance of soft magnetic materials is closely related to the composition.The addition of Cr improves the density and hardness of FeNi alloys,together increases the resistivity of FeNi alloys,while decreases the magnetic permeability and the Curie temperature significantly.
作者
黄莺莺
吴聪
唐良颖
刘华臣
孔倩倩
姚振华
HUANG Yingying;WU Cong;TANG Liangying;LIU Huachen;KONG Qianqian;YAO Zhenhua(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China;New Tobacco Products Engineering Center,China Tobacco Hubei Industrial Co.,Ltd.,Wuhan 430040,China)
出处
《材料工程》
北大核心
2025年第12期193-199,共7页
Journal of Materials Engineering
基金
国家自然科学基金青年基金项目(52001118)。
关键词
粉末冶金
软磁材料
致密度
磁性能
导电性
powder metallurgy
soft magnetic material
density
magnetic performance
electrical conductivity
