Anodic oxidation of zirconium in silicate solutions
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Anodic oxidation of zirconium in silicate solu
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Herein,astudyofthesurfacemodificationofzirconiumbyanodicoxidationisreported.TheoxidationprocesswascarriedoutinasolutioncontainingK2SiO3andKOH.Theanodizationwasconductedatvoltagesof100,200and400V.Itwasfoundthatthemorphologyofthesurfacedidnotchangeduringtheoxidationofthezirconiumat100and200V.Theapplicationof400Vresultedintheincorporationofsiliconintotheformedoxidelayerandasignificantmodificationofthesurfacemorphology.Theobtainedcoatingsaretypicalofcoatingproducedduringanelectrolyticplasmaoxidationprocessandcontainaconsiderableamountofsilicon.TheanodicoxidationofzirconiumleadstoasignificantimprovementinthecorrosionresistanceofthematerialinthepresenceofRinger’sphysiologicalsolution.
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