Kinetics of electrodeposition of NiP, CoP and NiCoP coatings depending on sodium hypophosphite concentration

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creativework.keywordsCathodic current efficiency, Electrodeposition kinetic, Mechanism of chemical composition, Phosphorus-containing alloys
creativework.publisherUniversity of Chemical Technology and Metallurgyjournal@uctm.eduen
dc.contributor.authorIgnatova K.
dc.contributor.authorMarcheva Y.
dc.date.accessioned2024-07-16T11:16:48Z
dc.date.accessioned2024-07-16T11:18:50Z
dc.date.available2024-07-16T11:16:48Z
dc.date.available2024-07-16T11:18:50Z
dc.date.issued2018-01-01
dc.description.abstractThe effect of NaH2PO2 concentration in the electrolyte (pH = 2) on the kinetics of NiP, CoP and NiCoP alloys electrodeposition at room temperature was studied. It was established that at concentration of NaH2PO2 about 0,2 M the deposition rate of NiP alloys decreases; the deposition rate of CoP alloys increases but at the same time the quality of the coating becomes bad. In both cases it was observed a depolarizing effect on the deposition. With increasing of the content of NaH2PO2, the phosphorus content in NiCoP alloys increases to approximately 7 % and the current efficiency of electrodeposition (CEE) goes over 100 %. The comparison of the kinetic data with those of CEE of NiCoP coatings showed that the mechanism of deposition is mixed chemical-electrochemical.
dc.identifier.issn1314-7978
dc.identifier.issn1314-7471
dc.identifier.scopusSCOPUS_ID:85044741312en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/1205
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85044741312&origin=inward
dc.titleKinetics of electrodeposition of NiP, CoP and NiCoP coatings depending on sodium hypophosphite concentration
dc.typeArticle
oaire.citation.issue3
oaire.citation.volume53
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