Melting temperature and order-disorder transformation of melt-spun (Fe, Pt)-Zr-B nanocrystalline alloys

Teruo Bitoh; Mai Nakagawa; Akihiro Makino

doi:10.1016/j.scriptamat.2005.04.032

Melting temperature and order-disorder transformation of melt-spun (Fe, Pt)-Zr-B nanocrystalline alloys

Teruo Bitoh, Mai Nakagawa, Akihiro Makino

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

4 Citations (Scopus)

Abstract

The L1₀-FePt nanocrystalline phase is directly formed by rapidly quenching the (Fe_1-xPt_x)_77-78Zr _2-5B_17-20 (x = 0.45-0.50) alloy melt. The as-quenched alloys exhibit coercivity higher than 200 kA/m. The in situ X-ray diffractometry at high temperatures reveals that the quenched L1₀-FePt phase in the alloys is stable up to the melting temperature. The L1₀-FePt phase forms directly without allowing the formation of the disordered face-centered cubic phase during rapid solidification.

Original language	English
Pages (from-to)	429-434
Number of pages	6
Journal	Scripta Materialia
Volume	53
Issue number	4
DOIs	https://doi.org/10.1016/j.scriptamat.2005.04.032
Publication status	Published - 2005 Aug
Externally published	Yes

Keywords

Iron-platinum alloy
Melt-spinning technique
Melting temperature
Order-disorder transformation temperature
Ordered L1 phase

ASJC Scopus subject areas

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

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10.1016/j.scriptamat.2005.04.032

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title = "Melting temperature and order-disorder transformation of melt-spun (Fe, Pt)-Zr-B nanocrystalline alloys",

abstract = "The L10-FePt nanocrystalline phase is directly formed by rapidly quenching the (Fe1-xPtx)77-78Zr 2-5B17-20 (x = 0.45-0.50) alloy melt. The as-quenched alloys exhibit coercivity higher than 200 kA/m. The in situ X-ray diffractometry at high temperatures reveals that the quenched L10-FePt phase in the alloys is stable up to the melting temperature. The L10-FePt phase forms directly without allowing the formation of the disordered face-centered cubic phase during rapid solidification.",

keywords = "Iron-platinum alloy, Melt-spinning technique, Melting temperature, Order-disorder transformation temperature, Ordered L1 phase",

author = "Teruo Bitoh and Mai Nakagawa and Akihiro Makino",

year = "2005",

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doi = "10.1016/j.scriptamat.2005.04.032",

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pages = "429--434",

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T1 - Melting temperature and order-disorder transformation of melt-spun (Fe, Pt)-Zr-B nanocrystalline alloys

AU - Bitoh, Teruo

AU - Nakagawa, Mai

AU - Makino, Akihiro

PY - 2005/8

Y1 - 2005/8

N2 - The L10-FePt nanocrystalline phase is directly formed by rapidly quenching the (Fe1-xPtx)77-78Zr 2-5B17-20 (x = 0.45-0.50) alloy melt. The as-quenched alloys exhibit coercivity higher than 200 kA/m. The in situ X-ray diffractometry at high temperatures reveals that the quenched L10-FePt phase in the alloys is stable up to the melting temperature. The L10-FePt phase forms directly without allowing the formation of the disordered face-centered cubic phase during rapid solidification.

AB - The L10-FePt nanocrystalline phase is directly formed by rapidly quenching the (Fe1-xPtx)77-78Zr 2-5B17-20 (x = 0.45-0.50) alloy melt. The as-quenched alloys exhibit coercivity higher than 200 kA/m. The in situ X-ray diffractometry at high temperatures reveals that the quenched L10-FePt phase in the alloys is stable up to the melting temperature. The L10-FePt phase forms directly without allowing the formation of the disordered face-centered cubic phase during rapid solidification.

KW - Iron-platinum alloy

KW - Melt-spinning technique

KW - Melting temperature

KW - Order-disorder transformation temperature

KW - Ordered L1 phase

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DO - 10.1016/j.scriptamat.2005.04.032

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EP - 434

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

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Melting temperature and order-disorder transformation of melt-spun (Fe, Pt)-Zr-B nanocrystalline alloys

Abstract

Keywords

ASJC Scopus subject areas

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