|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ЦЭМИ РАН |
||
Pushing the Limits of Applicability of REBCO Coated Conductor Films Through Fine Chemical Tuning and Nanoengineering of Inclusionsстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Rizzo Francesco, Augieri Andrea, Kursumovic Ahmed, Bianchetti Marco, Opherden Lars, Sieger Max, Hühne Ruben, Haenisch Jens, Meledin Alexander, Tendeloo Gustaaf Van, MacManus-Driscoll Judith, Celentano Giuseppe
- Журнал: Nanoscale
- Год издания: 2018
- Издательство: RSC Pub.
- Местоположение издательства: Cambridge, England
- DOI: 10.1039/c7nr09428k
- Аннотация: 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-x with Ba2Y(Nb,Ta)O6 inclusion pinning centres (YBCO-BYNTO) and thickness in the range 220 – 500 nm. Jc values of 10 MA/cm2 were 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/m3. The system is very flexible regarding property 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 Jc on magnetic field angle was readily controlled by fine tuning the pinning microstructure. The system is very flexible regarding property and microstructure tuning, and the growth window for achieving a particular microstructure is wide, which is very important for industrial processing. 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 B || c-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 field and temperature.
- Добавил в систему: Меледин Александр Александрович