In-situ high-temperature domain structures of die-upset Nd-Fe-B magnets

Yikun Fang, Xiaolu Yin, Ralph Skomski, Hongsheng Cheng, Kuikui Song, Minggang Zhu, Zhaohui Guo, Wei Li, Sy-Hwang Liou

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Magnetic domains of a die-upset Nd-Fe-B magnet with an energy product of about 50 MGOe are investigated by using in-situ magnetic force microscopy (MFM), varying temperature from room temperature to 240 °C. For both as-prepared and magnetized Nd-Fe-B samples, the domain-pattern evolution during thermal demagnetization is monitored by MFM. The temperature dependence of the evolution of reverse domains is explained by micromagnetic models. At all temperatures, the magnetization reversal in the technological relevant magnetized limit proceeds by nucleation.

Original languageEnglish (US)
Pages (from-to)72-75
Number of pages4
JournalScripta Materialia
Volume111
DOIs
StatePublished - Jan 15 2016

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magnetic force microscopy
Magnets
magnets
Magnetic force microscopy
demagnetization
magnetic domains
nucleation
Magnetization reversal
Demagnetization
Temperature
magnetization
temperature dependence
Magnetic domains
temperature
room temperature
products
Nucleation
energy

Keywords

  • Die-upset Nd-Fe-B magnets
  • Magnetic domains
  • Magnetic force microscopy (MFM)

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

Cite this

In-situ high-temperature domain structures of die-upset Nd-Fe-B magnets. / Fang, Yikun; Yin, Xiaolu; Skomski, Ralph; Cheng, Hongsheng; Song, Kuikui; Zhu, Minggang; Guo, Zhaohui; Li, Wei; Liou, Sy-Hwang.

In: Scripta Materialia, Vol. 111, 15.01.2016, p. 72-75.

Research output: Contribution to journalArticle

Fang, Y, Yin, X, Skomski, R, Cheng, H, Song, K, Zhu, M, Guo, Z, Li, W & Liou, S-H 2016, 'In-situ high-temperature domain structures of die-upset Nd-Fe-B magnets', Scripta Materialia, vol. 111, pp. 72-75. https://doi.org/10.1016/j.scriptamat.2015.08.017
Fang, Yikun ; Yin, Xiaolu ; Skomski, Ralph ; Cheng, Hongsheng ; Song, Kuikui ; Zhu, Minggang ; Guo, Zhaohui ; Li, Wei ; Liou, Sy-Hwang. / In-situ high-temperature domain structures of die-upset Nd-Fe-B magnets. In: Scripta Materialia. 2016 ; Vol. 111. pp. 72-75.
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AU - Zhu, Minggang

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