In support and extension of the mechanism of densification, strengthening and deformation behaviour of YBa2Cu3O7?x -Ag2O superconducting composites prepared by the powder metallurgy route

The Dependence of the Flux Pinning Effects on the Au Mole Fraction in Y1Ba2Cu3-3xAu3xO7-? Superconductors

“…When Ag is substituted for the Cu in Y 1 Ba 2 Cu 3 O 7± ±d superconductors, the microstructure properties of the Y 1 Ba 2 Cu 3± ±3x Ag 3x O 7± ±d superconductors are improved because of an increase in the link intensity between the grains [12], and the T c of the Y 1 Ba 2 Cu 3± ±3x Ag 3x O 7± ±d superconductors increases due to a decrease in the flux pinning potential resulting from a decrease in the coherence length in the Y 1 Ba 2 Cu 3± ±3x Ag 3± ±x O 7± ±d and AuBa 2 Y 1± ±x Ca x Cu 2 O 7± ±d superconductors [13,14]. Even though some works concerning the Y 1 Ba 2 Cu 3± ±3x Ag 3± ±x O 7± ±d superconductors have been reported [15], to the best of our knowledge, studies of the growth and the physical properties of Y 1 Ba 2 Cu 3± ±3x Au 3x O 7± ±d superconductors utilizing Au instead of Ag have not been performed yet. This paper reports the dependences of the microstructure and the flux pinning effects on the Au mole fraction in Y 1 Ba 2 Cu 3± ±3x Au 3x O 7± ±d superconductors grown by using the solid-state reaction method.…”