Microstructure Analysis of Melt Spun FeN foils with α″-Fe16N2 Phase

Md A. Mehedi; Yanfeng Jiang; Jian Ping Wang

doi:10.1557/adv.2016.284

Microstructure Analysis of Melt Spun FeN foils with α″-Fe₁₆N₂ Phase

Md A. Mehedi, Yanfeng Jiang, Jian Ping Wang

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We are reporting an approach to prepare bulk foils of α″-Fe₁₆N₂ that can be directly obtained from a melt spinning process. The diffraction peaks from α″-Fe₁₆N₂ phase were found in X-ray diffraction spectrum of the foil, for which a nitrogen composition of 8.7at% was found by Auger electron spectroscopy. The microstructure of this melt spun foil was analyzed. We found 600 nm subgrains inside 8 μm grains for this foil. The coercivity of the α″-Fe₁₆N₂ foil was found as 222 Oe with a saturation magnetization of 223 emu/g. We analyzed the coercivity based on the microstructure and proposed a model to explain how to further improve it in melt spun FeN foils.

Original language	English (US)
Pages (from-to)	2373-2378
Number of pages	6
Journal	MRS Advances
Volume	1
Issue number	34
DOIs	https://doi.org/10.1557/adv.2016.284
State	Published - 2016

Bibliographical note

Publisher Copyright:
© Copyright Materials Research Society 2016.

Keywords

ferromagnetic
magnetic properties
nanostructure

Publisher link

10.1557/adv.2016.284

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@article{68b8ceff805542c2ac67d7ce01b04607,

title = "Microstructure Analysis of Melt Spun FeN foils with α″-Fe16N2 Phase",

abstract = "We are reporting an approach to prepare bulk foils of α″-Fe16N2 that can be directly obtained from a melt spinning process. The diffraction peaks from α″-Fe16N2 phase were found in X-ray diffraction spectrum of the foil, for which a nitrogen composition of 8.7at% was found by Auger electron spectroscopy. The microstructure of this melt spun foil was analyzed. We found 600 nm subgrains inside 8 μm grains for this foil. The coercivity of the α″-Fe16N2 foil was found as 222 Oe with a saturation magnetization of 223 emu/g. We analyzed the coercivity based on the microstructure and proposed a model to explain how to further improve it in melt spun FeN foils.",

keywords = "ferromagnetic, magnetic properties, nanostructure",

author = "Mehedi, {Md A.} and Yanfeng Jiang and Wang, {Jian Ping}",

note = "Publisher Copyright: {\textcopyright} Copyright Materials Research Society 2016.",

year = "2016",

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language = "English (US)",

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pages = "2373--2378",

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TY - JOUR

T1 - Microstructure Analysis of Melt Spun FeN foils with α″-Fe16N2 Phase

AU - Mehedi, Md A.

AU - Jiang, Yanfeng

AU - Wang, Jian Ping

N1 - Publisher Copyright: © Copyright Materials Research Society 2016.

PY - 2016

Y1 - 2016

N2 - We are reporting an approach to prepare bulk foils of α″-Fe16N2 that can be directly obtained from a melt spinning process. The diffraction peaks from α″-Fe16N2 phase were found in X-ray diffraction spectrum of the foil, for which a nitrogen composition of 8.7at% was found by Auger electron spectroscopy. The microstructure of this melt spun foil was analyzed. We found 600 nm subgrains inside 8 μm grains for this foil. The coercivity of the α″-Fe16N2 foil was found as 222 Oe with a saturation magnetization of 223 emu/g. We analyzed the coercivity based on the microstructure and proposed a model to explain how to further improve it in melt spun FeN foils.

AB - We are reporting an approach to prepare bulk foils of α″-Fe16N2 that can be directly obtained from a melt spinning process. The diffraction peaks from α″-Fe16N2 phase were found in X-ray diffraction spectrum of the foil, for which a nitrogen composition of 8.7at% was found by Auger electron spectroscopy. The microstructure of this melt spun foil was analyzed. We found 600 nm subgrains inside 8 μm grains for this foil. The coercivity of the α″-Fe16N2 foil was found as 222 Oe with a saturation magnetization of 223 emu/g. We analyzed the coercivity based on the microstructure and proposed a model to explain how to further improve it in melt spun FeN foils.

KW - ferromagnetic

KW - magnetic properties

KW - nanostructure

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