Applied Physics Letters · 1998 · 51 citations · 13 references
Natural SciencesMaterials EngineeringMaterials ScienceCondensed Matter PhysicsElectronic MaterialsThin FilmsStrain EngineeringStrain HardeningSuperconducting MaterialsSuperconducting Thin FilmsThin Film Electrical PropertiesThin Film StrainCracksCritical Current DensityCritical Current PerformanceCurrentsHigh-temperature SuperconductorsPulsed Laser DepositionTensile StrainTextured Materials
Superconducting YBa2Cu3O7/CeO2/YSZ/CeO2 multilayer structures were grown on rolled-textured (001)Ni using pulsed-laser deposition. Critical current densities greater than 1 MA/cm2 were obtained for relatively thick YBa2Cu3O7 films. The compressive and tensile bend strain tolerance of critical currents for the YBa2Cu3O7 films deposited on these rolling-assisted biaxially textured substrates was also determined. These conductors retained up to 80% of their unstrained critical currents for applied compressive bend diameters as small as 1.5 cm and tensile bend diameters of 3.2 cm. The degradation of Jc is caused by the formation and propagation of transverse cracks. The results also suggest a correlation between bend-strain tolerance for these coated conductors and total oxide layer thickness.
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Properties of YBa2Cu3O7−δ thick films on flexible buffered metallic substrates
X. D. Wu, S. R. Foltyn, P. N. Arendt et al. · Applied Physics Letters · 1995 · 341 citations