Galvanostatic pulse and pulse reverse plating of zinc–nickel alloys from sulfate electrolytes on a rotating disc electrode
نویسندگان
چکیده
منابع مشابه
Pulse and pulse reverse plating—Conceptual, advantages and applications
A review on pulse and pulse reverse techniques for electrodeposition have been attempted. Pulse electrodeposition (PED) of some metals and lloys are reported. The effects of mass, transport, electrical double layer pulse parameters and current distribution on surface roughness and orphology are presented. Applications, advantages and disadvantages of PC and PRC techniques are discussed along wi...
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Amorphous alloys can be electrodeposited by direct or pulsed current. According to electrocrystallization theory, a high crystallization overpotential produces microcrystalline structure in the deposits. Thus if the amorphous phase consists of microcrystals, pulsed current is preferable for preparing amorphous alloys. However, another newly proposed theory holds that the amorphous phase structu...
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The effect of pulse electrodeposition parameters on the composition and microstructure of Ni–Re alloys were studied on a rotating cylinder electrode. Ni–Re alloys were deposited from a citrate bath where the nickel-to-rhenium ratio was 45:1. The composition of the deposited alloy was monitored by energy dispersive spectroscopy (EDS) and compared to a single component transport-based model descr...
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Nickel soft x-ray zone plates are fabricated by through-mask electroplating. The authors report on how a uniform nickel thickness can be obtained over the entire zone plate using pulse and pulse reverse plating. If the plating is carried out at a constant current the nickel thickness has been observed to decrease with radius. This results in lower outer zones and reduced diffraction efficiency ...
متن کاملZinc-Nickel Binary Alloys Electrodeposition of Steel Using Pulse Current
Zinc-Nickel electrodeposits have been widely adopted for surface treatment of automobile steel sheet for high corrosion resistance. In this work the effect of pulse parameters on the Zn-Ni alloy electrodeposits was investigated. The hardness, thickness, corrosion resistance and composition of deposits thus produced were investigated. The surface topography of the deposits was also observed in S...
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ژورنال
عنوان ژورنال: J. Chem. Soc., Faraday Trans.
سال: 1996
ISSN: 0956-5000,1364-5455
DOI: 10.1039/ft9969204021