Large intergranular critical currents in joined YBCO monoliths

Large-volume HTS tiles with low-angle grain boundaries are obtained by cutting melt textured $\chem{YBa_2Cu_3O_{7-\mathit{x}}}$ (YBCO) samples parallel to their c-direction and rejoining them with $\chem{ErBa_2Cu_3O_\mathit{x}}$, applying a pressure of 0.5$\un{MPa}$. This joining technique enables t...

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Bibliographic Details
Published in:Europhysics letters 2001-07, Vol.55 (1), p.100-104
Main Authors: Walter, H, Jooss, Ch, Sandiumenge, F, Bringmann, B, Delamare, M. P, Leenders, A, Freyhardt, H. C
Format: Article
Language:English
Subjects:
74.60.Jg
74.72.Bk
81.20.Vj
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Critical currents
Cuprates superconductors (high tc and insulating parent compounds)
Exact sciences and technology
High-Tc compounds
Physics
Properties of type I and type II superconductors
Superconductivity
Y-based cuprates
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Summary:Large-volume HTS tiles with low-angle grain boundaries are obtained by cutting melt textured $\chem{YBa_2Cu_3O_{7-\mathit{x}}}$ (YBCO) samples parallel to their c-direction and rejoining them with $\chem{ErBa_2Cu_3O_\mathit{x}}$, applying a pressure of 0.5$\un{MPa}$. This joining technique enables the preparation of large monoliths as well as of monoliths with complex shape which are required for technical application. Samples prepared by this technique exhibit high intergranular critical current densities up to 109 $\un{A/m^2}$ at 55$\un{K}$ and good mechanical connectivity.
ISSN:0295-5075
1286-4854
DOI:10.1209/epl/i2001-00387-4