6533b7d4fe1ef96bd12626c5

RESEARCH PRODUCT

Phase and structural transformations in annealed copper coatings in relation to oxide whisker growth

Rünno LõhmusIlmar KinkA. A. VikarchukM. V. DorogovAlexey E. RomanovLeonid M. DoroginLeonid M. DoroginLeonid M. DoroginSergei VlassovA. N. PriezzhevaM. N. TyurkovEugene Shulga

subject

Copper oxideMaterials scienceAnnealing (metallurgy)MetallurgyOxideGeneral Physics and Astronomychemistry.chemical_elementSurfaces and InterfacesGeneral ChemistryThermal treatmentengineering.materialCondensed Matter PhysicsFocused ion beamCopperSurfaces Coatings and Filmschemistry.chemical_compoundchemistryCoatingWhiskerengineeringComposite material

description

Abstract We describe structural and phase transformation in copper coatings made of microparticles during heating and annealing in air in the temperature range up to 400 °C. Such thermal treatment is accompanied by intensive CuO nanowhisker growth on the coating surface and the formation of the layered oxide phases (Cu 2 O and CuO) in the coating interior. X-ray diffraction and focused ion beam (FIB) are employed to characterize the multilayer structure of annealed copper coatings. Formation of volumetric defects such as voids and cracks in the coating is demonstrated.

https://doi.org/10.1016/j.apsusc.2015.03.211