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Pulse electrolysis for the production of hard Ni/ZrO2 composite coatings

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dc.contributor.author Dardavila, MM en
dc.contributor.author Kollia, C en
dc.date.accessioned 2014-03-01T02:53:26Z
dc.date.available 2014-03-01T02:53:26Z
dc.date.issued 2011 en
dc.identifier.issn 10120386 en
dc.identifier.uri http://hdl.handle.net/123456789/36317
dc.subject Metal matrix composite electrocoatings en
dc.subject Nickel en
dc.subject Pulse electrolysis en
dc.subject Textural modification en
dc.subject Vickers microhardness en
dc.subject ZrO 2 en
dc.subject.other Electrocoatings en
dc.subject.other Pulse electrolysis en
dc.subject.other Textural modifications en
dc.subject.other Vickers microhardness en
dc.subject.other ZrO en
dc.subject.other Cladding (coating) en
dc.subject.other Coatings en
dc.subject.other Diffusion in solids en
dc.subject.other Electrodeposition en
dc.subject.other Electrolysis en
dc.subject.other Mechanical properties en
dc.subject.other Metallic matrix composites en
dc.subject.other Microhardness en
dc.subject.other Nickel en
dc.subject.other Powder metals en
dc.subject.other Titanium dioxide en
dc.subject.other Zirconium alloys en
dc.subject.other Composite coatings en
dc.title Pulse electrolysis for the production of hard Ni/ZrO2 composite coatings en
heal.type conferenceItem en
heal.identifier.primary 10.4028/www.scientific.net/DDF.312-315.235 en
heal.identifier.secondary http://dx.doi.org/10.4028/www.scientific.net/DDF.312-315.235 en
heal.publicationDate 2011 en
heal.abstract Composite electrodeposition technology is one of the methods used to fabricate metal matrix composite coating materials. One of the most challenging issues concerns the addition of homogeneously suspending oxide powders, such as TiO2 and ZrO2 in the electrolyte, in order to result in the uniform dispersion of the oxide powders in the metal matrix [1]. Moreover, the application of a current periodically varied by time during electrodeposition, i.e. pulse current (p.c.) instead of the commonly used direct current (d.c.) has been concluded that leads to the preparation of surfaces with well-defined properties [2]. It is also well known that composite electrodeposits of Ni/metal oxides have remarkable mechanical and anticorrosion properties [3]. In this work nickel matrix composite electrocoatings including ZrO2 micron-sized particles were produced from an additive free Watts type bath under strong agitation conditions applying d.c. and p.c. regime. The synergetic action of the pulse application, the incorporation of the particles into the nickel matrix and the applied hydrodynamic conditions on the crystalline development, the morphological characteristics, the microhardness and the roughness of the composite electrocoatings, were studied. © (2011) Trans Tech Publications. en
heal.journalName Defect and Diffusion Forum en
dc.identifier.doi 10.4028/www.scientific.net/DDF.312-315.235 en
dc.identifier.volume 312-315 en
dc.identifier.spage 235 en
dc.identifier.epage 239 en


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