Search results for "PHOTOEMISSION PROCESSES"

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Effect of Composition on the Photoelectrochemical Behavior of Anodic Oxides on Binary Aluminum Alloys

2006

The photoelectrochemical behavior of anodic films on Al alloys, containing titanium, tantalum, and tungsten (valve metals), has been studied as a function of alloy composition and anodizing conditions. Photocurrent spectroscopy has been used to get information on bandgap and the flatband potential values of different mixed oxides. Both insulator-like and semiconducting behavior has been observed for anodic oxides grown on Al-W and Al-Ti alloys dependent on alloy initial composition. Optical bandgap values, E opt g , of different oxides are in accordance with predictions based on the correlation between E opt g and the difference of electronegativities of the oxide constituents, indicating p…

PASSIVE FILMSMaterials scienceAlloyOxideTantalumchemistry.chemical_elementTungstenengineering.materialchemistry.chemical_compoundWO3Materials ChemistryElectrochemistryPHOTOEMISSION PROCESSESDEPOSITIONPhotocurrentSPECTROSCOPYRenewable Energy Sustainability and the EnvironmentAnodizingFILM FORMATIONMetallurgyIONIC TRANSPORTCORROSIONCondensed Matter PhysicsTA2O5Surfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryChemical engineeringengineeringPHOTOEMISSION PROCESSES; IONIC TRANSPORT; FILM FORMATION; PASSIVE FILMS; CORROSION; TA2O5; WO3; CRYSTALLIZATION; SPECTROSCOPY; DEPOSITIONCRYSTALLIZATIONTernary operationTitaniumJournal of The Electrochemical Society
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