6533b7dbfe1ef96bd1270966
RESEARCH PRODUCT
Influence of crystal defects on the electromigration of the hydrogen in palladium
Roman SzatanikRyszard Pietrzaksubject
QuenchingMaterials scienceCondensed matter physicsHydrogenchemistry.chemical_elementThermodynamicsLiquid nitrogenCondensed Matter PhysicsCrystallographic defectElectromigrationElectronic Optical and Magnetic MaterialsMetalchemistryvisual_artElectric fieldvisual_art.visual_art_mediumElectrical and Electronic EngineeringPalladiumdescription
Abstract Electromigration and diffusion of hydrogen in palladium defected through quenching to liquid nitrogen temperature were investigated. It was found that the obtained experimental results cannot be described by means of a single flux of hydrogen which diffuses in a gradient of electric field. In order to effectively explain the obtained results, a theoretical model was elaborated. It assumed the existence of the following two fluxes of hydrogen in the quenched metal: • Ji—of migration, according to the interstitial mechanism, and • Ji–d—of migration, according to the interstitial-defective mechanism. Dependence of effective valences and diffusion coefficients for both mechanisms of transportation was determined in relation to the initial temperature of the quenching.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-12-01 | Physica B: Condensed Matter |