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P. PRIOTEASA1, M. M. CODESCU1,* , E. PATROI1, D. PATROI1, V. MARINESCU1
In the present study, the results of preliminary experiments about electrodeposition in magnetic field of cobalt nickel manganese-phosphorus (CoNiMnP) alloy films on copper substrate are reported. The composition of electrolyte bath was: 26 g/L CoCl2.6H2O, 24 g/L NiCl2.6H2O, 3.6 g/L MnSO4, 24 g/L H3BO3, 4.6 g/L NaH2PO2, 23 g/L NaCl, 0.8 g/L saccharin, 0.2 g/L sodium lauryl sulphate and 0.01 g/L cerium(III) sulphate. The electrodeposition experiments were conducted in the following operating conditions: 3.5-5 pH value, 2-9 mA/cm2 current density, 2-5 V voltage, room temperature (25oC), magnetic stirring, and 1-15 h electrolysis time. The electrolysis cell was surrounded with a permanent magnet. The CoNiMnP alloy layers showed good appearance and were characterized by uniformity, fine-grained and brightness. The best quality CoNiMnP alloy was a smooth, bright and uniform deposit having about 70 μm thickness, which was obtained working with 5 mA/cm2 current density during 15 h. The structure, texture, crystallite size and Vickers microhardness were evidenced and measured by SEM and XRD investigations and microhardness tests, respectively. Also, the magnetic characteristics of CoNiMnP films were studied using magnetometry..
NiCoMnP alloy films, Electrodeposition, Surface characterization, Magnetic properties, Film hardness.
P. PRIOTEASA, M. M. CODESCU, E. PATROI, D. PATROI, V. MARINESCU, Electroplating in magnetic field and characterization of NiCoMnP alloy films with permanent magnet, Optoelectronics and Advanced Materials - Rapid Communications, 7, 1-2, January-February 2013, pp.90-95 (2013).
Submitted at: Oct. 26, 2012
Accepted at: Feb. 20, 2013
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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