简介：Byanoveltechnique-cathodicmicro-arcelectro-deposition(CMED),ZrO2coatingsweredepositedonanFeCrAlalloy.ExperimentalresultsshowthatthenecessaryconditionsforobtainingZrO2coatingsaretoapplyapulsepeakvoltageoveracriticalvalueandaddmoderateamountsofZrO2colloidalparticlesandZr(NO3)4intheequeoussolution.Theas-depositedcoatingsareporousbecausehydrogen,water,andothervaporsaregeneratedandreleasedfromthecoatingstothesolutionduringthesparkreaction.ThecoatingscontainmonoclinicandtetragonalcrystallineZrOwithcertaindegreeofamorphousstructure.TheprocessingparametersandmechanismofCMEDwerediscussed.
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