Search results for "Cathodic polarization"

showing 3 items of 3 documents

Degradacja wodorowa niestopowej stali jakościowej DC01

2016

Celem prowadzonych badań była ocena podatności stali DC01 na niszczenie wodorowe. Badania odporności stali DC01 na niszczące działanie wodoru zrealizowano w oparciu o próbę statycznego rozciągania (slow strain) próbek w powietrzu oraz po polaryzacji katodowej. Wodorowanie stali zrealizowano w wodnym roztworze 0,1N kwasu siarkowego(VI) z dodatkiem 2 mg/dm3 tlenku arsenu(III) jako promotora wnikania wodoru przy gęstości prądu 10 i 20 mA/cm2 w czasie od 3 do 24 godzin. Zawartość wodoru w stali przed oraz po procesie elektrolitycznego nawodorowania oznaczono przy użyciu analizatora LECO ONH836. Przedmiotem szczegółowej analizy były wyniki badań mechanicznych, natomiast ich uzupełnieniem ocena m…

polaryzacja katodowahydrogencathodic polarizationlow alloy steelhydrogen degradationniestopowa stal jakościowaniszczenie wodorowewodórProceedings of ECOpole
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Comments on 'formation and characterization of nanotubes of La(OH) 3 obtained using porous alumina membranes'

2010

New experimental evidence concerning the formation of La(OH)3 nanowires on anodic alumina membranes by cathodic polarization in 0.05 M lanthanum nitrate solution is provided to further support the conclusions previously reached in our work (Bocchetta et al 2007 Electrochem. Commun. 9 683-8) and recently criticized by González-Rovira et al (Nanotechnology 2008 19 495305). Some unconvincing aspects of the paper of González-Rovira et al, according to which the same electrochemical process should lead to the formation of hydroxycarbonate nanotubes, are also discussed.

Lanthanum nitrateMaterials scienceMechanical EngineeringAlumina membranesNanowireBioengineeringNanotechnologyCathodic polarizationGeneral ChemistryElectrochemistryAnodeCharacterization (materials science)Settore ING-IND/23 - Chimica Fisica ApplicataChemical engineeringLa(OH)3 nanowireelectrogeneration of base anodic alumina membraneMechanics of MaterialsAnodic alumina membranes Electrochemical process Experimental evidence Hydroxy carbonates Lanthanum nitrates Porous alumina membranesGeneral Materials ScienceElectrical and Electronic EngineeringPorosity
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Electrochemical Fabrication and Physicochemical Characterization of Metal/High-k Insulating Oxide/Polymer/Electrolyte Junctions

2014

Photoelectrochemical polymerization of poly(3,4-ethylenedioxythiophene), PEDOT, was successfully realized on anodic film grown to 50 V on magnetron sputtered Ti-6 atom % Si alloys. Scanning electron microscopy allowed us to evidence formation of compact and uniform polymer layers on the oxide surface. Photoelectrochemical and impedance measurements showed that photopolymerization allows one to grow PEDOT in its conducting state, while a strong cathodic polarization is necessary to bring the polymer in its p-type semiconducting state. Information on the optical and electrical properties of metal/oxide/polymer/electrolyte junctions proves that PEDOT has promising performance as an electrolyte…

Materials scienceFabricationElectrochemical fabricationInorganic chemistryImpedance measurementOxidePhysico-chemical characterizationPoly-3 4-ethylenedioxythiopheneElectrolyteElectrochemistrySettore ING-INF/01 - ElettronicaPhotoelectrochemistrychemistry.chemical_compoundPEDOT:PSSPhysical and Theoretical ChemistryConducting statechemistry.chemical_classificationPhotopolymerizationCathodic polarizationPolymerSilicon alloySurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsOptical and electrical propertieSettore ING-IND/23 - Chimica Fisica ApplicataGeneral EnergychemistryPolymerizationCavity magnetronLithium IntercalationTitanium alloyScanning electron microscopyThe Journal of Physical Chemistry C
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