Publications in Scientific Journals:
V. Antal, M. Kanuchova, M. Sefcikova, J. Kovac, P. Diko, M. Eisterer, N. Hörhager, M. Zehetmayer, H. W. Weber, X. Chaud:
"Influence of Al doping and oxygenation on the superconducting properties of TSMG YBCO bulks";
Journal of Physics: Conference Series,
YBCO bulk single-grain samples with the nominal composition Y1.5Ba2(Cu1-xAlx)3Oy
were fabricated by the Top - Seeded Melt - Growth process. Aluminium was found to be a suitable
chemical dopant in Y1Ba2(Cu1-xAlx)3O7/Y2BaCuO5 bulk superconductors, which introduces
effective nanosized pinning centres. An increase of the critical current density, Jc, and the
appearance of a peak effect were observed at intermediate magnetic fields below the critical
temperature, Tc. A significant increase of the critical current density was observed in Al doped
samples after high pressure oxygenation (16 MPa oxygen pressure) at 750 °C, i.e. by a factor of 3
compared to samples subjected to standard oxygenation at 400 °C at ambient oxygen pressure.
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
Electronic version of the publication:
Created from the Publication Database of the Vienna University of Technology.