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Microstructure of nanocrystalline globules embedded in an amorphous matrix of Fe–Cu‐based immiscible alloys
Author(s) -
Nagase Takeshi,
Umakoshi Yukichi
Publication year - 2016
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6090
Subject(s) - nanocrystalline material , transmission electron microscopy , microstructure , amorphous solid , materials science , phase (matter) , crystallography , chemical engineering , scanning electron microscope , high resolution transmission electron microscopy , analytical chemistry (journal) , composite material , nanotechnology , chemistry , chromatography , organic chemistry , engineering
The combination of liquid phase separation and amorphous phase formation in separate liquids offers an opportunity to obtain unique solidification structures. The microstructure of the melt‐spun ribbons in Fe–Cu–Zr–B alloys was examined using transmission electron microscopy, high‐resolution transmission electron microscopy and scanning transmission electron microscopy. The results clarified the presence of an emulsion‐like structure composed of nanoglobules and an Fe‐based amorphous matrix in the melt‐spun ribbons. The nanoglobules had a core–shell structure in which a face‐centered cubic Cu crystalline core was covered by a B‐enriched Fe‐based amorphous shell. Copyright © 2016 John Wiley & Sons, Ltd.