Microstructure and magnetic properties of Cu-Ag-La-Fe immiscible alloys with an amorphous phase

Takeshi Nagase; Tomoyuki Terai; Tomoyuki Kakeshita; Megumi Matsumoto; Yoshikazu Fujii

doi:10.2497/jjspm.65.45

Microstructure and magnetic properties of Cu-Ag-La-Fe immiscible alloys with an amorphous phase

Takeshi Nagase, Tomoyuki Terai, Tomoyuki Kakeshita, Megumi Matsumoto, Yoshikazu Fujii

SCI - Earth Science

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

3 Citations (Scopus)

Abstract

The microstructure and magnetic properties of rapidly solidified in Cu_43.2Ag_32.0La_4.8Fe₂₀ (at.%) alloy, which was designed as the combination of Cu-Ag-based Cu₅₄Ag₄₀La₆ alloy with high glass forming ability and Fe, was investigated. The composite of an amorphous phase and crystalline phases was obtained in melt-spun ribbons. The spherical Fe globules, which was surrounded by Cu-rich crystalline phases, were embedded in Cu-Ag-La based amorphous matrix. The particular structure in melt-spun ribbons can be explained by the liquid phase separation and the crystallization of the separated Fe-rich liquid globules during the cooling of the thermal melt. The melt-spun ribbon shows the typical ferromagnetic magnetic properties due to the ten nano-meter ordered bcc-Fe based globules.

Original language	Japanese
Pages (from-to)	45-51
Number of pages	7
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	65
Issue number	1
DOIs	https://doi.org/10.2497/jjspm.65.45
Publication status	Published - 2018

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@article{e71e43a307e7425cbf2618f1a6fbdec5,

title = "Microstructure and magnetic properties of Cu-Ag-La-Fe immiscible alloys with an amorphous phase",

abstract = "The microstructure and magnetic properties of rapidly solidified in Cu43.2Ag32.0La4.8Fe20 (at.%) alloy, which was designed as the combination of Cu-Ag-based Cu54Ag40La6 alloy with high glass forming ability and Fe, was investigated. The composite of an amorphous phase and crystalline phases was obtained in melt-spun ribbons. The spherical Fe globules, which was surrounded by Cu-rich crystalline phases, were embedded in Cu-Ag-La based amorphous matrix. The particular structure in melt-spun ribbons can be explained by the liquid phase separation and the crystallization of the separated Fe-rich liquid globules during the cooling of the thermal melt. The melt-spun ribbon shows the typical ferromagnetic magnetic properties due to the ten nano-meter ordered bcc-Fe based globules.",

keywords = "Amorphous alloy, Electron microscopy, Magnetic property, Microstructure, Rapid solidification",

author = "Takeshi Nagase and Tomoyuki Terai and Tomoyuki Kakeshita and Megumi Matsumoto and Yoshikazu Fujii",

year = "2018",

doi = "10.2497/jjspm.65.45",

language = "Japanese",

volume = "65",

pages = "45--51",

journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",

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TY - JOUR

T1 - Microstructure and magnetic properties of Cu-Ag-La-Fe immiscible alloys with an amorphous phase

AU - Nagase, Takeshi

AU - Terai, Tomoyuki

AU - Kakeshita, Tomoyuki

AU - Matsumoto, Megumi

AU - Fujii, Yoshikazu

PY - 2018

Y1 - 2018

N2 - The microstructure and magnetic properties of rapidly solidified in Cu43.2Ag32.0La4.8Fe20 (at.%) alloy, which was designed as the combination of Cu-Ag-based Cu54Ag40La6 alloy with high glass forming ability and Fe, was investigated. The composite of an amorphous phase and crystalline phases was obtained in melt-spun ribbons. The spherical Fe globules, which was surrounded by Cu-rich crystalline phases, were embedded in Cu-Ag-La based amorphous matrix. The particular structure in melt-spun ribbons can be explained by the liquid phase separation and the crystallization of the separated Fe-rich liquid globules during the cooling of the thermal melt. The melt-spun ribbon shows the typical ferromagnetic magnetic properties due to the ten nano-meter ordered bcc-Fe based globules.

AB - The microstructure and magnetic properties of rapidly solidified in Cu43.2Ag32.0La4.8Fe20 (at.%) alloy, which was designed as the combination of Cu-Ag-based Cu54Ag40La6 alloy with high glass forming ability and Fe, was investigated. The composite of an amorphous phase and crystalline phases was obtained in melt-spun ribbons. The spherical Fe globules, which was surrounded by Cu-rich crystalline phases, were embedded in Cu-Ag-La based amorphous matrix. The particular structure in melt-spun ribbons can be explained by the liquid phase separation and the crystallization of the separated Fe-rich liquid globules during the cooling of the thermal melt. The melt-spun ribbon shows the typical ferromagnetic magnetic properties due to the ten nano-meter ordered bcc-Fe based globules.

KW - Amorphous alloy

KW - Electron microscopy

KW - Magnetic property

KW - Microstructure

KW - Rapid solidification

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M3 - 学術論文

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VL - 65

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JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

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IS - 1

ER -

Microstructure and magnetic properties of Cu-Ag-La-Fe immiscible alloys with an amorphous phase

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