Fe16n2: From a 40-year mystery ofmagnetic materials to one of promises for rare-earth-free magnets

J. Wang; Yanfeng Jiang; M. A. Mehedi; J. Liu; Y. Wu; B. Ma

doi:10.1109/INTMAG.2018.8508460

Fe₁₆n₂: From a 40-year mystery ofmagnetic materials to one of promises for rare-earth-free magnets

J. Wang, Yanfeng Jiang, M. A. Mehedi, J. Liu, Y. Wu, B. Ma

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

Fe₁₆N₂ is one of the most promising rare-earth-free magnet candidates with high magnetic energy product. Iron nitride magnet is of great interest as a magnetic material for applications at relatively low temperature (<150 °C) ranging from magnets in hard disk drives for data storage and in all kinds of electrical motors, wind turbines, and other power generation machines. A perspective review on our research work on bulk Fe₁₆N₂ compound permanent magnet in past years is presented on the aspects of material processing and magnetic characterizations. Specifically, we will introduce and discuss our effort to prepare bulk Fe₁₆N₂ compound permanent magnet by using three different approaches, including an ion implantation method, a ball milling method and a strained-wire method. A feasibility of free-standing iron nitride foils with magnetic energy product up to 20 MGOe was successfully demonstrated based on an ion implantation method. Based on our theoretical and experimental progress, we believe that Fe₁₆N₂ compound permanent magnet is currently in an accelerating step to be an alternative magnet candidate.

Original language	English (US)
Title of host publication	2018 IEEE International Magnetic Conference, INTERMAG 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538664254
DOIs	https://doi.org/10.1109/INTMAG.2018.8508460
State	Published - Oct 24 2018
Event	2018 IEEE International Magnetic Conference, INTERMAG 2018 - Singapore, Singapore Duration: Apr 23 2018 → Apr 27 2018

Publication series

Name	2018 IEEE International Magnetic Conference, INTERMAG 2018

Conference

Conference	2018 IEEE International Magnetic Conference, INTERMAG 2018
Country/Territory	Singapore
City	Singapore
Period	4/23/18 → 4/27/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Access

10.1109/INTMAG.2018.8508460

Cite this

Wang, J., Jiang, Y., Mehedi, M. A., Liu, J., Wu, Y., & Ma, B. (2018). Fe₁₆n₂: From a 40-year mystery ofmagnetic materials to one of promises for rare-earth-free magnets. In 2018 IEEE International Magnetic Conference, INTERMAG 2018 [8508460] (2018 IEEE International Magnetic Conference, INTERMAG 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTMAG.2018.8508460

Fe₁₆n₂ : From a 40-year mystery ofmagnetic materials to one of promises for rare-earth-free magnets. / Wang, J.; Jiang, Yanfeng; Mehedi, M. A.; Liu, J.; Wu, Y.; Ma, B.

2018 IEEE International Magnetic Conference, INTERMAG 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 8508460 (2018 IEEE International Magnetic Conference, INTERMAG 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wang, J, Jiang, Y, Mehedi, MA, Liu, J, Wu, Y & Ma, B 2018, Fe₁₆n₂: From a 40-year mystery ofmagnetic materials to one of promises for rare-earth-free magnets. in 2018 IEEE International Magnetic Conference, INTERMAG 2018., 8508460, 2018 IEEE International Magnetic Conference, INTERMAG 2018, Institute of Electrical and Electronics Engineers Inc., 2018 IEEE International Magnetic Conference, INTERMAG 2018, Singapore, Singapore, 4/23/18. https://doi.org/10.1109/INTMAG.2018.8508460

Wang J, Jiang Y, Mehedi MA, Liu J, Wu Y, Ma B. Fe₁₆n₂: From a 40-year mystery ofmagnetic materials to one of promises for rare-earth-free magnets. In 2018 IEEE International Magnetic Conference, INTERMAG 2018. Institute of Electrical and Electronics Engineers Inc. 2018. 8508460. (2018 IEEE International Magnetic Conference, INTERMAG 2018). https://doi.org/10.1109/INTMAG.2018.8508460

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abstract = "Fe16N2 is one of the most promising rare-earth-free magnet candidates with high magnetic energy product. Iron nitride magnet is of great interest as a magnetic material for applications at relatively low temperature (<150 °C) ranging from magnets in hard disk drives for data storage and in all kinds of electrical motors, wind turbines, and other power generation machines. A perspective review on our research work on bulk Fe16N2 compound permanent magnet in past years is presented on the aspects of material processing and magnetic characterizations. Specifically, we will introduce and discuss our effort to prepare bulk Fe16N2 compound permanent magnet by using three different approaches, including an ion implantation method, a ball milling method and a strained-wire method. A feasibility of free-standing iron nitride foils with magnetic energy product up to 20 MGOe was successfully demonstrated based on an ion implantation method. Based on our theoretical and experimental progress, we believe that Fe16N2 compound permanent magnet is currently in an accelerating step to be an alternative magnet candidate.",

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