Study on microstructure and magnetic properties of nitrogen-annealed Nd-Fe-B nanocomposite magnets - Details

author：

Wang, C. (Wang, C..) ^[1] | Chen, J. (Chen, J..) ^[2] | Dai, P. (Dai, P..) ^[3] | Li, Q. (Li, Q..) ^[4]

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Abstract：

The　effects　of　nitrogen　annealing　on　the　microstructure　and　magnetic　properties　of　melt-spun　Nd-Fe-Co-Zr-B　alloy　have　been　studied.　It　is　shown　that　the　ribbons　annealed　in　purified　argon　atmosphere　are　composed　of　Nd　2Fe　14B　and　α-Fe　phases,　the　microstructure　of　ribbons　is　homogeneous　and　fine-grained.　The　nitrogen-annealed　ribbons　are　composed　of　Nd　2Fe　14B,　NdBN　2　and　α-Fe　phases,　the　microstructure　of　ribbons　is　relatively　heterogeneous　and　coarse-grained.　The　increase　of　nitrogen　content　in　the　annealing　atmosphere　can　increase　the　volume　fractions　of　NdBN　2　and　α-Fe　phases　in　the　ribbons.　The　remanence,　intrinsic　coercivity　and　the　maximum　energy　product　of　ribbons　are　decreased　with　increasing　the　nitrogen　content　in　the　annealing　atmosphere.　©　(2012)　Trans　Tech　Publications.

Keyword：

Hard magnets; NdFeB; Nitrogen annealing; Rare earth

Community：

[ 1 ] [Wang, C.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
[ 2 ] [Chen, J.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
[ 3 ] [Dai, P.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
[ 4 ] [Dai, P.]Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350108, China
[ 5 ] [Li, Q.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China

Reprint 's Address：

[Wang, C.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China

Email：

msewang@fzu.edu.cn

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Source ：

Advanced Materials Research

ISSN： 1022-6680

Year： 2012

Volume： 476-478

Page： 1130-1133

Language： English

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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