Microstructure and magnetic properties of cuaglafe immiscible alloys with an amorphous phase + 1

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

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The solidification microstructure and magnetic properties of rapidly solidified melt-spun ribbons in Cu 43.2 Ag 32.0 La 4.8 Fe 20 (at%) alloy, which was designed as the combination of the CuAg-based Cu 54 Ag 40 La 6 alloy with high glass-forming ability and Fe, was investigated. The composite of an amorphous matrix and dispersed crystalline phases were obtained in the melt-spun ribbons. The spherical BCC-Fe nanocrystals, which were surrounded by Cu-rich crystalline phases, were embedded in a CuAgLa-based amorphous matrix. The particular solidification structure in melt-spun ribbons can be explained by liquid-phase separation to form major CuAgLa-rich and minor Fe-rich liquids, an amorphous phase formation in major CuAgLa-rich liquid, and the crystallization of the separated Fe-rich liquid globules during the cooling of the thermal melt. The melt-spun ribbon shows typical ferromagnetic magnetic properties caused by the 10 nm-ordered spherical BCC-Fe nanocrystals.

本文言語English
ページ(範囲)554-560
ページ数7
ジャーナルMaterials Transactions
60
4
DOI
出版ステータスPublished - 2019
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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