Synergistic effect of 2-butyne-1,4-diol and pulse plating on the structure and properties of nickel nanocrystalline deposits

Pavlatou, EA; Raptakis, M; Spyrellis, N

dc.contributor.author	Pavlatou, EA	en
dc.contributor.author	Raptakis, M	en
dc.contributor.author	Spyrellis, N	en
dc.date.accessioned	2014-03-01T01:27:21Z
dc.date.available	2014-03-01T01:27:21Z
dc.date.issued	2007	en
dc.identifier.issn	0257-8972	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18417
dc.subject	Hardness	en
dc.subject	Nickel electrodeposition	en
dc.subject	Organic additives	en
dc.subject	Preferred orientation	en
dc.subject.classification	Materials Science, Coatings & Films	en
dc.subject.classification	Physics, Applied	en
dc.subject.other	Corrosion inhibitors	en
dc.subject.other	Crystal orientation	en
dc.subject.other	Electrodeposition	en
dc.subject.other	Grain size and shape	en
dc.subject.other	Hardness	en
dc.subject.other	Morphology	en
dc.subject.other	Nanostructured materials	en
dc.subject.other	Nickel deposits	en
dc.subject.other	Organic additives	en
dc.subject.other	Preferred orientation	en
dc.subject.other	Pulse current electroplating	en
dc.subject.other	Textural modification	en
dc.subject.other	Electroplating	en
dc.subject.other	Corrosion inhibitors	en
dc.subject.other	Crystal orientation	en
dc.subject.other	Electrodeposition	en
dc.subject.other	Electroplating	en
dc.subject.other	Grain size and shape	en
dc.subject.other	Hardness	en
dc.subject.other	Morphology	en
dc.subject.other	Nanostructured materials	en
dc.subject.other	Nickel deposits	en
dc.title	Synergistic effect of 2-butyne-1,4-diol and pulse plating on the structure and properties of nickel nanocrystalline deposits	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.surfcoat.2006.09.113	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.surfcoat.2006.09.113	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	Nanocrystalline nickel deposits were produced by applying both direct current (DC) and pulse current electroplating (PC) from an additive-free Watts type bath and in the presence of 2-butyne-1,4-diol (BD). The surface morphology, the preferred orientation, the grain size and the microhardness of the deposits were investigated. Under DC conditions, the addition of BID enhanced the perfection of [100] preferred crystal orientation and promoted a considerable grain refinement. The application of PC technique in presence of small amount of BD (C-BD=0.25 mmol L-1) accelerated the textural modification from [100] to [211] with respect to DC conditions and deposits with grain size of 20-60 mir were produced. A significant enhancement of microhardness of the produced bright deposits was observed compared to those deposits prepared under DC regime, which could be correlated to the observed crystal orientation mode [211], as well as to the corresponding nanosized crystallites. Progressive addition of BD promoted a peculiar textural modification from [211] to [ 1001 and a possible mechanism of action of BD is proposed taking into account as inhibiting species of the Ni crystal growth not only Ni(OH)(2) but also cis-butene-1,4 diol. (c) 2006 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	Surface and Coatings Technology	en
dc.identifier.doi	10.1016/j.surfcoat.2006.09.113	en
dc.identifier.isi	ISI:000243655900012	en
dc.identifier.volume	201	en
dc.identifier.issue	8	en
dc.identifier.spage	4571	en
dc.identifier.epage	4577	en