Influence of RE-Based Liquid Source (RE = Sm, Gd, Dy, Y, Yb) on EuBCO/Ag Superconducting Bulks

作者: Filip Antoncik , Michal Lojka , Tomas Hlasek , Jakub Skočdopole , David Sedmidubský

DOI: 10.1109/TASC.2021.3063065

关键词: Analytical chemistryField homogeneityMicrostructureRare earthMaterials scienceCeramicSuperconductivityRietveld refinementDiffusionElemental composition

摘要: One of the common approaches to improve microstructure rare-earth-barium-copper-oxide-based superconducting ceramics is an addition a liquid source under precursor bulk during top-seeded melt growth or infiltration growth. The additional partially negates change in elemental composition due loss phase, which otherwise occurs. focus this contribution study effects various RE2O3-Ba3Cu5O8-BaO2 (RE = Sm, Gd, Dy, Y, Yb) sources on properties and single-domain EuBCO/Ag bulks. samples were prepared with height 16 mm diameter 28 mm (as grown). This allowed us diffusion rare earth elements from into final detail. Samples characterized by XRD, SEM, EDS. phase was studied detail using Rietveld refinement. influence key also examined. has significantly improved trapped field homogeneity. Dy2O3 yielded highest among elements. research significant high-performance since it allows for better understanding role TSMG process, different elements, most importantly impact these techniques

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