Biancun Xie, Madhavan Swaminathan, et al.
EMC 2011
We have undertaken phase-stability studies of Y1Ba2Cu3O7-x(+Ag) and BaCu2O2 (+Ag) over the temperature range 780°C-950°C and oxygen partial pressure range 1.0 × 10-6-2.0 × 10 -1 atm. Ag was found to have no effect on the thermodynamic stability of either phase. Partial melting of YBCO was found at temperatures as low as 800°C ± 10°C, with significant peritectic melting at temperatures as low as 900°C ± 10°C. These thermochemical studies have enabled us to determine the optimum conditions for reduced temperature and pressure (RTP) processing of Ag clad Y1Ba2Cu3O7-x pellets and tapes. The classic domain structure with strong texturing over short lengths was produced in samples melt processed by controlling oxygen partial pressure at a fixed temperature. The RTP method has the advantage that the second phase Y2BaCuO5 particle size can be controlled. Moreover, the technique offers the promise of long lengths of flexible Y1Ba2Cu3O7-x tapes with high current carrying capability. © 1995.
Biancun Xie, Madhavan Swaminathan, et al.
EMC 2011
R. Ghez, J.S. Lew
Journal of Crystal Growth
Revanth Kodoru, Atanu Saha, et al.
arXiv
Surendra B. Anantharaman, Joachim Kohlbrecher, et al.
MRS Fall Meeting 2020