Electroplated Fe-Co-Ni films prepared in ammonium-chloride-based plating baths
Author(s) -
T. Yanai,
K. Koda,
J. Kaji,
H. Aramaki,
K. Eguchi,
Keisuke Takashima,
Masaki Nakano,
H. Fukunaga
Publication year - 2018
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.5007782
Subject(s) - coercivity , plating (geology) , electroplating , materials science , ammonium chloride , metallurgy , chloride , phase (matter) , chemical engineering , composite material , chemistry , layer (electronics) , condensed matter physics , physics , organic chemistry , geophysics , engineering , geology
We electroplated Fe-Co-Ni films in ammonium-chloride-based plating baths, and investigated the effect of the Co content on the magnetic properties and the structural ones of the as-plated films. The coercivity increased abruptly when the Co content become more than 60 at.%. As the rough surfaces were observed in the high Co content region, we considered that degradation of the surface is a factor of the abrupt increase in the coercivity. From the XRD analysis, we found that another factor of the abrupt increase is fcc-bcc phase transformation, and concluded that we need to keep the fcc structure to obtain Fe-Co-Ni films with low coercivity.
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