摘要
通过熔体快淬法制备具有（200）取向α-Fe晶粒的Fe_83.5B_15Cu_1.5非晶纳米晶合金，并重点研究了在制备过程中α-Fe晶粒的产生以及贴棍面和自由面对合金结构与磁性能的影响规律。研究表明，Fe_83.5B_15Cu_1.5合金在熔体快淬之后具有大量（200）择优方向的α-Fe晶粒。晶化热处理之后，贴辊面的微观形貌主要是球形纳米颗粒，而自由面的微观形貌主要是长度为200～300nm的片状多孔结构。经过热处理（温度390℃，保温时间10min）之后可获得最佳磁性能为：饱和磁感应强度Bs=1.83T，矫顽力Hc=8.7A/m。本研究对Fe基非晶合金软磁材料的发展具有积极意义。
Fe_83.5B_15Cu_1.5 amorphous/nanocrystalline alloys with （200） orientedα-Fe nanoparticles were prepared by melt spinning. And the effects of the free and contact side on the microstructure and magnetic properties for Fe_83.5B_15Cu_1.5 alloys were investigated. The results show that the Fe_83.5B_15Cu_1.5 alloy contains a large amount of （200）-preferred α-Fe and exhibits optimal magnetic properties after annealing at 390℃ for 10 miniates. After heat treatment, the Fe_83.5B_15Cu_1.5 alloy exhibits sphere nanoparticles on the contact side while flake porous microstructure on the free side. The optimal properties of maximum Bs of 1.83T and a low Hc of 8.7A/m were obtained for sample treated at 390℃ for 10 miniates. This research is of guidance for development of Fe-based amorphous/nanocrystalline soft magnetic materials.
出处
《磁性材料及器件》
CAS
2015年第2期6-9,20,共5页
Journal of Magnetic Materials and Devices
基金
广东省教育部产学研结合项目(2013B0910000721)
中央高校基本业务费重点项目(2014ZZ0005)
