Effect of super heat treatment on crystallization behavior and magnetic properties of Nd_(4.5)Fe_(77)B_(18.5) nanocomposites

CORC > 清华大学

	Effect of super heat treatment on crystallization behavior and magnetic properties of Nd_(4.5)Fe_(77)B_(18.5) nanocomposites
	Sheng HC(盛洪超) ; Ceng XR(曾燮榕) ; Zou JZ(邹继兆) ; Xie SH(谢盛辉)
刊名	http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=YXTB201003028&dbname=CJFQ2010
	2012-04-27 ; 2012-04-27
关键词	nanocomposite magnets amorphous alloys superheat treatment rare earths
中文摘要	Melt-spun Nd4.5Fe77B18.5 ribbons were prepared under various superheat temperatures.The microstructure characteristics,crystallization behavior,and subsequent magnetic properties of Fe3B/Nd2Fe14B nanocomposite magnets were investigated using X-ray diffraction,differential thermal analysis,and vibrating sample magnetometry.It was shown that melt spinning at different quenching temperatures caused the as-quenched ribbons to have distinctive crystallization behavior.Depending on superheat temperature,phase transformation of the ribbons during annealing may take place in one of the following sequences:(1) amorphous phase(Am)→Am'+Fe3B→Fe3B+ Nd2Fe23B3→ Fe3B+Nd2Fe14B,or(2) amorphous phase(Am)→Am'+Fe3B→Fe3B+Nd2Fe14B.For the latter,the ribbon after optimal annealing exhibited single-phase magnetic behavior.In the first case,magnetic properties of the optimally heat treated ribbons deteriorated and an apparent kink could be seen along the demagnetization curves near the zero field.
语种	中文
其他责任者	School of Materials Science and Engineering ; Northwestern Polytechnical University ; College of Materials Science and Engineering ; Shenzhen University ; Shenzhen Key Laboratory of Special Functional Materials
内容类型	期刊论文
源URL	[http://ir.calis.edu.cn/hdl/244041/1123]
专题	清华大学
推荐引用方式 GB/T 7714	Sheng HC,Ceng XR,Zou JZ,et al. Effect of super heat treatment on crystallization behavior and magnetic properties of Nd_(4.5)Fe_(77)B_(18.5) nanocomposites[J]. http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=YXTB201003028&dbname=CJFQ2010,2012, 2012.
APA	盛洪超,曾燮榕,邹继兆,&谢盛辉.(2012).Effect of super heat treatment on crystallization behavior and magnetic properties of Nd_(4.5)Fe_(77)B_(18.5) nanocomposites.http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=YXTB201003028&dbname=CJFQ2010.
MLA	盛洪超,et al."Effect of super heat treatment on crystallization behavior and magnetic properties of Nd_(4.5)Fe_(77)B_(18.5) nanocomposites".http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=YXTB201003028&dbname=CJFQ2010 (2012).