Magnetic properties and structure of Fe-Pt-M-B (M = Zr, Nb and Ti) alloys produced by quenching technique

Akihiro Makino; Teruo Bitoh; Akihisa Inoue; Yoshihiko Hirotu

doi:10.1016/j.jallcom.2006.08.092

Magnetic properties and structure of Fe-Pt-M-B (M = Zr, Nb and Ti) alloys produced by quenching technique

Akihiro Makino, Teruo Bitoh, Akihisa Inoue, Yoshihiko Hirotu

New Industry Creation Hatchery Center (NICHe)

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

10 Citations (Scopus)

Abstract

The L1₀-FePt nanocrystalline phase is directly formed by the rapid quenching of the (Fe_0.55Pt_0.45)-M-B (M = Zr, Nb and Ti) alloy melt. The as-quenched alloys exhibit coercivity higher than 200 kA/m. The direct formation of L1₀-FePt takes place at the compositional range where the equilibrium disordered fcc phase disappears by decreasing of melting temperature into the L1₀-FePt phase stable region with simultaneous addition of the M elements and B, presumably because of the strong interaction of Pt-M pairs.

Original language	English
Pages (from-to)	614-617
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	434-435
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jallcom.2006.08.092
Publication status	Published - 2007 May 31

Keywords

Calorimetry
Liquid quenching
Magnetic measurements
Nanostructures
Permanent magnets

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2006.08.092

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title = "Magnetic properties and structure of Fe-Pt-M-B (M = Zr, Nb and Ti) alloys produced by quenching technique",

abstract = "The L10-FePt nanocrystalline phase is directly formed by the rapid quenching of the (Fe0.55Pt0.45)-M-B (M = Zr, Nb and Ti) alloy melt. The as-quenched alloys exhibit coercivity higher than 200 kA/m. The direct formation of L10-FePt takes place at the compositional range where the equilibrium disordered fcc phase disappears by decreasing of melting temperature into the L10-FePt phase stable region with simultaneous addition of the M elements and B, presumably because of the strong interaction of Pt-M pairs.",

keywords = "Calorimetry, Liquid quenching, Magnetic measurements, Nanostructures, Permanent magnets",

author = "Akihiro Makino and Teruo Bitoh and Akihisa Inoue and Yoshihiko Hirotu",

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doi = "10.1016/j.jallcom.2006.08.092",

language = "English",

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journal = "Journal of Alloys and Compounds",

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T1 - Magnetic properties and structure of Fe-Pt-M-B (M = Zr, Nb and Ti) alloys produced by quenching technique

AU - Makino, Akihiro

AU - Bitoh, Teruo

AU - Inoue, Akihisa

AU - Hirotu, Yoshihiko

PY - 2007/5/31

Y1 - 2007/5/31

N2 - The L10-FePt nanocrystalline phase is directly formed by the rapid quenching of the (Fe0.55Pt0.45)-M-B (M = Zr, Nb and Ti) alloy melt. The as-quenched alloys exhibit coercivity higher than 200 kA/m. The direct formation of L10-FePt takes place at the compositional range where the equilibrium disordered fcc phase disappears by decreasing of melting temperature into the L10-FePt phase stable region with simultaneous addition of the M elements and B, presumably because of the strong interaction of Pt-M pairs.

AB - The L10-FePt nanocrystalline phase is directly formed by the rapid quenching of the (Fe0.55Pt0.45)-M-B (M = Zr, Nb and Ti) alloy melt. The as-quenched alloys exhibit coercivity higher than 200 kA/m. The direct formation of L10-FePt takes place at the compositional range where the equilibrium disordered fcc phase disappears by decreasing of melting temperature into the L10-FePt phase stable region with simultaneous addition of the M elements and B, presumably because of the strong interaction of Pt-M pairs.

KW - Calorimetry

KW - Liquid quenching

KW - Magnetic measurements

KW - Nanostructures

KW - Permanent magnets

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DO - 10.1016/j.jallcom.2006.08.092

M3 - Article

AN - SCOPUS:33947597276

SN - 0925-8388

VL - 434-435

SP - 614

EP - 617

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - SPEC. ISS.

ER -

Magnetic properties and structure of Fe-Pt-M-B (M = Zr, Nb and Ti) alloys produced by quenching technique

Abstract

Keywords

ASJC Scopus subject areas

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