Improvement of the superconducting properties of an infiltrated YBCO bulk superconductor by a BaCeO3 addition

Mahmood, Asif; Park, S. D.; Jun, Byung‐Hyuk; Youn, Jang H.; Han, Young-Hee; Sung, Tae–Hyun; Kim, C. J.

doi:10.1016/j.physc.2009.05.016

Cited by 13 publications

(3 citation statements)

References 16 publications

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“…Besides, they have sufficient porosity [9] and are suitable for the standard oxygenation process. Small Y211 particles in Y123 matrix have a positive influence on the critical current density in a zero magnetic field [10][11][12][13]. It has already been shown that the size of Y211 particles can also be influenced by microalloying with RE elements (doping) in concentrations below 1 wt.%.…”

Section: Introductionmentioning

confidence: 99%

Influence of Sm₂O₃microalloying and Yb contamination on Y211 particles coarsening and superconducting properties of IG YBCO bulk superconductors

Vojtková

Diko

Kováč

et al. 2018

Supercond. Sci. Technol.

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Single grain YBa 2 Cu 3 O 7−x (YBCO or Y123) bulk superconductors were produced by an infiltration growth process. The solid phase precursor was prepared by solid state synthesis from Y 2 O 3 +BaCuO 2 powders. The influence of the addition of Sm 2 O 3 and YB contamination from the substrate on the microstructure and superconducting properties was analyzed. The dependences of Yb concentration on the distance from the bottom of the samples measured by energy dispersive spectroscopy microanalysis used in conjunction with scanning electron microscopy confirmed the contamination of the samples during the melting stage of the sample preparation. It is shown that the addition of Sm in low concentration and its combination with Yb from the substrate modify the coarsening of the Y211 particles as well as lead to the appearance of a secondary peak effect in the field dependences of the critical current density.

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Section: Introductionmentioning

confidence: 99%

Influence of Sm₂O₃microalloying and Yb contamination on Y211 particles coarsening and superconducting properties of IG YBCO bulk superconductors

Vojtková

Diko

Kováč

et al. 2018

Supercond. Sci. Technol.

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“…The obvious way how to achieve that type of microstructure is an addition of CeO 2 to solid phase pellet. CeO 2 or BaCeO 2 addition refines Y211 particles and increases growth rate of Y123 single crystal [1,2].…”

Section: Introductionmentioning

confidence: 99%

Microstructure YBCO Bulk Superconductors Fabricated by Infiltration Growth Process

Vojtková

Diko

2017

MSF

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Single grain YBCO bulk superconductors were prepared from different starting precursors. In the first case, Y2Ba1Cu1O5 (Y211) powder as the solid phase and the liquid phase of mixture of YBa2Cu3O7-x+BaCuO2+CuO powders were used. In the second case the solid phase was prepared from the mixture of Y2O3+BaCuO2 instead of the conventionally used Y211. The microstructure of samples was studied by polarized light microscopy and scanning electron microscope (SEM). The influence of different staring compositions on the final size of Y211 particles is shown. Also the influence of BaCuO2 concentration in the Y2O3+x·BaCuO2 (x=0.2; 0.5; 0.8; 1; 1.2; 1.5; 1.8) mixture on the Y211 size was studied.

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“…Desirable microstructure of YBCO superconductors should consist of Y 1 Ba 2 Cu 3 O 7−x (Y123) matrix with small homogeneously distributed Y211 particles serving as pinning centres. Addition of CeO 2 or BaCeO 3 is a common way how to refine Y211 particles [1,2].…”

Section: Introductionmentioning

confidence: 99%

Trapped Field of YBCO Bulk Superconductors Prepared by Infiltration Growth Process

2017

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Single grain Y1Ba2Cu3O7−x (YBCO) bulk superconductors were prepared from different starting precursors. In the first case, Y2Ba1Cu1O5 (Y211) powder as the solid phase and the liquid phase of mixture of YBa2Cu3O7−x+BaCuO2+CuO powders were used. In the second case, the solid phase was prepared from the mixture of Y2O3+BaCuO2 instead of the conventionally used Y211, and as the liquid phase a mixture of Y2O3+BaCuO2+CuO powders was used. The trapped field measurements at 77 K were performed and microstructure of samples was studied by polarized light microscopy. The positive influence of Y2O3+BaCuO2 starting precursor on the oxygenation, Y211 particle refinement and measured trapped field is shown.

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Improvement of the superconducting properties of an infiltrated YBCO bulk superconductor by a BaCeO3 addition

Cited by 13 publications

References 16 publications

Influence of Sm₂O₃microalloying and Yb contamination on Y211 particles coarsening and superconducting properties of IG YBCO bulk superconductors

Influence of Sm₂O₃microalloying and Yb contamination on Y211 particles coarsening and superconducting properties of IG YBCO bulk superconductors

Microstructure YBCO Bulk Superconductors Fabricated by Infiltration Growth Process

Trapped Field of YBCO Bulk Superconductors Prepared by Infiltration Growth Process

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Improvement of the superconducting properties of an infiltrated YBCO bulk superconductor by a BaCeO3 addition

Cited by 13 publications

References 16 publications

Influence of Sm2O3microalloying and Yb contamination on Y211 particles coarsening and superconducting properties of IG YBCO bulk superconductors

Influence of Sm2O3microalloying and Yb contamination on Y211 particles coarsening and superconducting properties of IG YBCO bulk superconductors

Microstructure YBCO Bulk Superconductors Fabricated by Infiltration Growth Process

Trapped Field of YBCO Bulk Superconductors Prepared by Infiltration Growth Process

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Influence of Sm₂O₃microalloying and Yb contamination on Y211 particles coarsening and superconducting properties of IG YBCO bulk superconductors

Influence of Sm₂O₃microalloying and Yb contamination on Y211 particles coarsening and superconducting properties of IG YBCO bulk superconductors