Enhanced coercivity of spark plasma sintered Zn-bonded Sm-Fe-N magnets

D. Prabhu; H. Sepehri-Amin; C. L. Mendis; T. Ohkubo; K. Hono; S. Sugimoto

doi:10.1016/j.scriptamat.2012.04.001

Enhanced coercivity of spark plasma sintered Zn-bonded Sm-Fe-N magnets

D. Prabhu, H. Sepehri-Amin, C. L. Mendis, T. Ohkubo, K. Hono, S. Sugimoto

ENG - Materials Science

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

20 Citations (Scopus)

Abstract

A high-coercivity Zn-bonded Sm-Fe-N magnet is synthesized using spark plasma sintering. Optimal post-sinter annealing results in a large coercivity of μ ₀H _c = 2.75 T. Transmission electron microscopy and atom probe tomography revealed the formation of a Sm-Fe-Zn-N phase on the particle surface and the presence of Fe ₃Zn ₁₀ at the grain boundaries, which are believed to be the cause of the enhanced coercivity.

Original language	English
Pages (from-to)	153-156
Number of pages	4
Journal	Scripta Materialia
Volume	67
Issue number	2
DOIs	https://doi.org/10.1016/j.scriptamat.2012.04.001
Publication status	Published - 2012 Jul

Keywords

Atom probe tomography
Coercivity
Permanent magnet
Sm-Fe-N

ASJC Scopus subject areas

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

Access to Document

10.1016/j.scriptamat.2012.04.001

Fingerprint Dive into the research topics of 'Enhanced coercivity of spark plasma sintered Zn-bonded Sm-Fe-N magnets'. Together they form a unique fingerprint.

Cite this

@article{25cf7dffb4244ce0905a7cd510ed9ecc,

title = "Enhanced coercivity of spark plasma sintered Zn-bonded Sm-Fe-N magnets",

abstract = "A high-coercivity Zn-bonded Sm-Fe-N magnet is synthesized using spark plasma sintering. Optimal post-sinter annealing results in a large coercivity of μ 0H c = 2.75 T. Transmission electron microscopy and atom probe tomography revealed the formation of a Sm-Fe-Zn-N phase on the particle surface and the presence of Fe 3Zn 10 at the grain boundaries, which are believed to be the cause of the enhanced coercivity.",

keywords = "Atom probe tomography, Coercivity, Permanent magnet, Sm-Fe-N",

author = "D. Prabhu and H. Sepehri-Amin and Mendis, {C. L.} and T. Ohkubo and K. Hono and S. Sugimoto",

note = "Funding Information: This work was supported by the Research and Development of Alternative New Permanent Magnetic Materials to Nd–Fe–B Magnets Project, NEDO . H.S.A. acknowledges International Center for Young Scientists (ICYS), NIMS for provision of the ICYS fellowship. Copyright: Copyright 2012 Elsevier B.V., All rights reserved.",

year = "2012",

month = jul,

doi = "10.1016/j.scriptamat.2012.04.001",

language = "English",

volume = "67",

pages = "153--156",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier Limited",

number = "2",

}

TY - JOUR

T1 - Enhanced coercivity of spark plasma sintered Zn-bonded Sm-Fe-N magnets

AU - Prabhu, D.

AU - Sepehri-Amin, H.

AU - Mendis, C. L.

AU - Ohkubo, T.

AU - Hono, K.

AU - Sugimoto, S.

N1 - Funding Information: This work was supported by the Research and Development of Alternative New Permanent Magnetic Materials to Nd–Fe–B Magnets Project, NEDO . H.S.A. acknowledges International Center for Young Scientists (ICYS), NIMS for provision of the ICYS fellowship. Copyright: Copyright 2012 Elsevier B.V., All rights reserved.

PY - 2012/7

Y1 - 2012/7

N2 - A high-coercivity Zn-bonded Sm-Fe-N magnet is synthesized using spark plasma sintering. Optimal post-sinter annealing results in a large coercivity of μ 0H c = 2.75 T. Transmission electron microscopy and atom probe tomography revealed the formation of a Sm-Fe-Zn-N phase on the particle surface and the presence of Fe 3Zn 10 at the grain boundaries, which are believed to be the cause of the enhanced coercivity.

AB - A high-coercivity Zn-bonded Sm-Fe-N magnet is synthesized using spark plasma sintering. Optimal post-sinter annealing results in a large coercivity of μ 0H c = 2.75 T. Transmission electron microscopy and atom probe tomography revealed the formation of a Sm-Fe-Zn-N phase on the particle surface and the presence of Fe 3Zn 10 at the grain boundaries, which are believed to be the cause of the enhanced coercivity.

KW - Atom probe tomography

KW - Coercivity

KW - Permanent magnet

KW - Sm-Fe-N

UR - http://www.scopus.com/inward/record.url?scp=84861916491&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84861916491&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2012.04.001

DO - 10.1016/j.scriptamat.2012.04.001

M3 - Article

AN - SCOPUS:84861916491

VL - 67

SP - 153

EP - 156

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

IS - 2

ER -

Enhanced coercivity of spark plasma sintered Zn-bonded Sm-Fe-N magnets

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Cite this