Soft magnetic properties of amorphous Fe52Co34Hf7B6Cu1 alloy treated by pulsed magnetic field and annealing

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	Soft magnetic properties of amorphous Fe52Co34Hf7B6Cu1 alloy treated by pulsed magnetic field and annealing
其他题名	Soft magnetic properties of amorphous Fe_(52)Co_(34)Hf_7B_6Cu_1 alloy treated by pulsed magnetic field and annealing
	Gu Yue 1; Chao YueSheng 1; Zhang YanHui 1
	2012
发表期刊	CHINESE PHYSICS B
ISSN	1674-1056
卷号	21 期号:12
摘要	The crystallization, microstructure, and soft magnetic properties of Fe52Co34Hf7B6Cu1 alloy are studied. Amorphous Fe52Co34Hf7B6Cu1 alloys are first treated by a pulsed magnetic field with a medium frequency, and then annealed at 100 degrees C-400 degrees C for 30 min in a vacuum. The rise in temperature during the treatment by a pulsed magnetic field is measured by a non-contact infrared thermometer. The soft magnetic properties of specimens are measured by a vibrating sample magnetometer (VSM). The microstructure changes of specimens are observed by a Mossbauer spectroscopy and transmission electron microscope (TEM). The results show the medium-frequency pulsating magnetic field will promote nanocrystallization of the amorphous alloy with a lower temperature rise. The nanocrystalline phase is alpha-Fe(Co) with bcc crystal structure, and the grain size is about 10 nm. After vacuum annealing at 100 degrees C for 30 min, scattering nanocrystalline phases become more uniform, the coercive force and the saturation magnetization of the specimens are 41.98 A/m and 185.15 emu/g.
其他摘要	The crystallization, microstructure, and soft magnetic properties of Fe_(52)Co_(34)Hf_7B_6Cu_1 alloy are studied. Amorphous Fe_(52)Co_(34)Hf_7B_6Cu_1 alloys are first treated by a pulsed magnetic field with a medium frequency, and then annealed at 100 °C-400 °C for 30 min in a vacuum. The rise in temperature during the treatment by a pulsed magnetic field is measured by a non-contact infrared thermometer. The soft magnetic properties of specimens are measured by a vibrating sample magnetometer (VSM). The microstructure changes of specimens are observed by a Mossbauer spectroscopy and transmission electron microscope (TEM). The results show the medium-frequency pulsating magnetic field will promote nanocrystallization of the amorphous alloy with a lower temperature rise. The nanocrystalline phase is α-Fe(Co) with bcc crystal structure, and the grain size is about 10 nm. After vacuum annealing at 100 °C for 30 min, scattering nanocrystalline phases become more uniform, the coercive force and the saturation magnetization of the specimens are 41.98 A/m and 185.15 emu/g.
关键词	amorphous alloys pulsed magnetic field vacuum annealing nanocrystallization
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China]
CSCD记录号	CSCD:4740362
引用统计	被引频次：6[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/151228
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.University Sci & Technol Liaoning, Coll Sci, Anshan 114044, Peoples R China
推荐引用方式 GB/T 7714	Gu Yue,Chao YueSheng,Zhang YanHui. Soft magnetic properties of amorphous Fe52Co34Hf7B6Cu1 alloy treated by pulsed magnetic field and annealing[J]. CHINESE PHYSICS B,2012,21(12).
APA	Gu Yue,Chao YueSheng,&Zhang YanHui.(2012).Soft magnetic properties of amorphous Fe52Co34Hf7B6Cu1 alloy treated by pulsed magnetic field and annealing.CHINESE PHYSICS B,21(12).
MLA	Gu Yue,et al."Soft magnetic properties of amorphous Fe52Co34Hf7B6Cu1 alloy treated by pulsed magnetic field and annealing".CHINESE PHYSICS B 21.12(2012).