Electroless NiP-TiO2 composite coatings: Their production and properties

Novakovic, J; Vassiliou, P; Samara, Kl; Argyropoulos, Th

dc.contributor.author	Novakovic, J	en
dc.contributor.author	Vassiliou, P	en
dc.contributor.author	Samara, Kl	en
dc.contributor.author	Argyropoulos, Th	en
dc.date.accessioned	2014-03-01T01:24:17Z
dc.date.available	2014-03-01T01:24:17Z
dc.date.issued	2006	en
dc.identifier.issn	0257-8972	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17202
dc.subject	Composite coatings	en
dc.subject	Corrosion	en
dc.subject	Electroless Ni-P	en
dc.subject	Hardness	en
dc.subject	TiO2	en
dc.subject	Vacuum heat treatment	en
dc.subject.classification	Materials Science, Coatings & Films	en
dc.subject.classification	Physics, Applied	en
dc.subject.other	Adhesion	en
dc.subject.other	Amorphous materials	en
dc.subject.other	Brass	en
dc.subject.other	Corrosion	en
dc.subject.other	Corrosion resistance	en
dc.subject.other	Crystal microstructure	en
dc.subject.other	Heat treatment	en
dc.subject.other	Microhardness	en
dc.subject.other	Nickel	en
dc.subject.other	Profilometry	en
dc.subject.other	Protective coatings	en
dc.subject.other	Scanning electron microscopy	en
dc.subject.other	Composite coatings	en
dc.subject.other	Vacuum heat treatment	en
dc.subject.other	Vickers microhardness	en
dc.subject.other	Electroless plating	en
dc.subject.other	Adhesion	en
dc.subject.other	Amorphous materials	en
dc.subject.other	Brass	en
dc.subject.other	Corrosion	en
dc.subject.other	Corrosion resistance	en
dc.subject.other	Crystal microstructure	en
dc.subject.other	Electroless plating	en
dc.subject.other	Heat treatment	en
dc.subject.other	Microhardness	en
dc.subject.other	Nickel	en
dc.subject.other	Profilometry	en
dc.subject.other	Protective coatings	en
dc.subject.other	Scanning electron microscopy	en
dc.title	Electroless NiP-TiO2 composite coatings: Their production and properties	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.surfcoat.2006.01.005	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.surfcoat.2006.01.005	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	Composite coatings of modified amorphous nickel were prepared by simultaneous electroless deposition of NiP and TiO2 on brass, from a solution in which TiO2 particles were kept in suspension by stirring. Following short-term heat treatment in a high vacuum, the plating acquires chromium equivalent hardness. The deposit surfaces were studied by SEM, profilometry and Vickers microhardness and its structure by X-ray diffraction. The fabricated composite materials were tested under corrosion conditions by linear polarization measurements. The results show that after the heat treatment in a high vacuum for a very short time (10 min) the deposits acquire a crystalline microstructure, with very good adhesion to the substrate. In addition, the microhardness of vacuum heat-treated particle-free NiP coatings attained values of 1200 HV, while the composite NiP-TiO2 coatings acquired an even higher microhardness, exceeding 1450 HV The corrosion resistance of the fabricated composite layers after heat treatment remained almost unaffected. (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.2006.01.005	en
dc.identifier.isi	ISI:000244477300051	en
dc.identifier.volume	201	en
dc.identifier.issue	3-4	en
dc.identifier.spage	895	en
dc.identifier.epage	901	en