Please use this identifier to cite or link to this item: http://hdl.handle.net/11452/29166
Title: Scanning of nickel sulfamate concentration in electrodeposition bath used for production of Ni-Co alloys
Authors: Karpuz, Ali
Koçkar, Hakan
Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Bölümü.
Alper, Mürsel
AAG-8795-2021
7005719283
Keywords: Engineering
Materials science
Physics
Magnetic-properties
Wave-forms
Films
Microstructure
Magnetoresistance
Deposition
Coatings
Cobalt
Ph
Cobalt
Electrodeposition
Magnetoresistance
Metallic films
Anisotropic magnetoresistance
Anomalous codeposition
Electrodeposition technique
Face-centered cubic
Hcp structure
Hexagonal closed packed (hcp) structure
Ni-Co alloy
Ni-Co system
Nickel
Issue Date: Sep-2013
Publisher: Springer
Citation: Karpuz, A. vd. (2013). "Scanning of nickel sulfamate concentration in electrodeposition bath used for production of Ni-Co alloys". Journal of Materials Science-Materials in Electronics, 24(9), 3376-3381.
Abstract: The Ni-Co films were produced by using the electrodeposition technique from the electrolytes with different Ni(SO3 center dot NH2)(2)center dot 4H(2)O concentrations (from 0 to 0.45 M). The Ni content of the films changed gradually from 0 to 57 %. The Ni-Co system exhibited anomalous codeposition. For 0 at.% Ni content, the saturation magnetization, M-s of the film was found to be 1298 emu/cm(3), which is close to that of bulk Co (1420 emu/cm(3)). As the Ni content increased, M-s decreased since the M-s value of bulk Ni (480 emu/cm(3)) is lower than that of bulk Co. The coercivity, H-c, of Co film was found as 37 Oe. When the Ni content increased to 6 at.%, the H-c value dramatically increased to 109 Oe. The hexagonal closed packed (hcp) structure was observed for the films containing 0 and 6 at.% Ni. When the Ni content increased to 25 at.%, a mixed phase of face centered cubic (fcc) and hcp structure (mostly fcc) was detected. For further increase in Ni content (39 and 57 at.%), the peaks which occurred from the reflections of fcc phase were obtained. As a result of structural analysis, the Co content can be determined as 62-64 at.% for changing of crystal structure. The transfiguration from spherical granular to acicular surface morphology occurred around 75 at.% Co content. Magnetoresistance of the films was measured and it was found that the films show anisotropic magnetoresistance.
URI: https://doi.org/10.1007/s10854-013-1258-3
https://aperta.ulakbim.gov.tr/record/13759#.Yoc6JqhByM8
http://hdl.handle.net/11452/29166
ISSN: 0957-4522
1573-482X
Appears in Collections:Scopus
Web of Science

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