ELECTRODEPOSITION OF Ni-Co ALLOY POWDERS FROM DIFFERENT ELECTROLYTE COMPOSITIONS

Simple item page
creativework.keywordselectrodeposition, kinetic, metal powders, morphology, Ni-Co alloy
creativework.publisherUniversity of Chemical Technology and Metallurgyen
dc.contributor.authorIgnatova K.
dc.date.accessioned2024-07-16T11:16:50Z
dc.date.accessioned2024-07-16T11:19:00Z
dc.date.available2024-07-16T11:16:50Z
dc.date.available2024-07-16T11:19:00Z
dc.date.issued2020-01-01
dc.description.abstractThe effect of the content of the main components (Co and Ni) and pH on the formation rate, the chemical com-position and the morphology of Ni-Co powders obtained in amino-sulfate, amino-chloride and chloride electrolytes is determined. The powder formation in an ammonium-sulfate electrolyte is performed with a low speed and hence a low current efficiency. It is strongly suppressed in a chloride solution by the increase of pH, Co and especially Ni content of the electrolyte. The decrease of pH from 9.1 to 1.4 increases the Ni content from 45.3 wt.% to 61.4 wt.% forming powders of a smaller average particle size (up to 10 µm) with a trend for agglomeration. The Ni-Co powders obtained have polycrystalline structures with presence of f.c.c. phases of ß-Ni and ß-Co and additional h.c.p phase of a-Co, when the cobalt content is greater than 50 wt.%.
dc.identifier.issn1314-7978
dc.identifier.issn1314-7471
dc.identifier.scopusSCOPUS_ID:85096670301en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/1290
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85096670301&origin=inward
dc.titleELECTRODEPOSITION OF Ni-Co ALLOY POWDERS FROM DIFFERENT ELECTROLYTE COMPOSITIONS
dc.typeArticle
oaire.citation.issue6
oaire.citation.volume55
Files
Collections
Articles