Pushing the limits of applicability of REBCO coated conductor films through fine chemical tuning and nanoengineering of inclusions

F. Rizzo, A. Augieri, A. Kursumovic, M. Bianchetti, L. Opherden, M. Sieger, R. Hühne, J. Hänisch, A. Meledin, G. Van Tendeloo, J.L. Macmanus-Driscoll, G. Celentano

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

An outstanding current carrying performance (namely critical current density, Jc) over a broad temperature range of 10-77 K for magnetic fields up to 12 T is reported for films of YBa2Cu3O7-xwith Ba2Y(Nb,Ta)O6inclusion pinning centres (YBCO-BYNTO) and thicknesses in the range of 220-500 nm. Jcvalues of 10 MA cm-2were measured at 30 K-5 T and 10 K-9 T with a corresponding maximum of the pinning force density at 10 K close to 1 TN m-3. The system is very flexible regarding properties and microstructure tuning, and the growth window for achieving a particular microstructure is wide, which is very important for industrial processing. Hence, the dependence of Jcon the magnetic field angle was readily controlled by fine tuning the pinning microstructure. Transmission electron microscopy (TEM) analysis highlighted that higher growth rates induce more splayed and denser BYNTO nanocolumns with a matching field as high as 5.2 T. Correspondingly, a strong peak at the Bc-axis is noticed when the density of vortices is lower than the nanocolumn density. YBCO-BYNTO is a very robust and reproducible composite system for high-current coated conductors over an extended range of magnetic fields and temperatures.
Original languageEnglish
Pages (from-to)8187 - 8195
Number of pages9
JournalNanoscale
Volume10
Issue number17
DOIs
Publication statusPublished - 7 May 2018
Externally publishedYes

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Rizzo, F., Augieri, A., Kursumovic, A., Bianchetti, M., Opherden, L., Sieger, M., Hühne, R., Hänisch, J., Meledin, A., Van Tendeloo, G., Macmanus-Driscoll, J. L., & Celentano, G. (2018). Pushing the limits of applicability of REBCO coated conductor films through fine chemical tuning and nanoengineering of inclusions. Nanoscale, 10(17), 8187 - 8195. https://doi.org/10.1039/c7nr09428k