Open AccessEnhancement of superconducting properties of GdBCO bulk with the additives of Gd3ZrO7 particles
Author(s) -
Junlei Yuan,
Jimin Xu,
Long Zhou,
Y. F. Zhang,
J. Y. Zhang,
X. J. Zhang,
T. Y. Zhang,
Wenli Zhou,
Xu Yang,
Mitsuru Izumi
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/677/5/052042
Subject(s) - materials science , superconductivity , doping , condensed matter physics , ion , physics , optoelectronics , quantum mechanics
Due to the high performance in trapped magnetic field, critical current density, REBa 2 Cu 3 O 7-δ (RE123 or REBCO, RE=rare earth elements, Gd, Y, Nd, etc.) bulk high temperature superconductors (HTS) have attracted lots of attentions. GdBCO superconductor bulk with 25 mm diameter and the additive of Gd 3 ZrO 7 particles has been successfully fabricated by top-seeded infiltration and growth (TSIG) method. YBa 2 Cu 3 O 7-δ (Y123) particles have been used as the liquid source, which provide enough the liquid source during the growth.The GdBCO bulk is a clear fourfold single domain with a four square around seed crystal, which is similar with the additive of the particles include Zr ions. The shape of the trapped field for the GdBCO bulk with 0.8%mol is a conical structure with 0.56T, which indicates the high performance of GdBCO bulk. The critical current density of B1 near the edge shows the maximum value. Gd 3 ZrO 7 doping provides enough Gd ions to form Gd211 particles, which enhance J C near the edge of the bulks. The onset T C value increases to 95.5K and keeps the superconducting properties. The experimental data is useful for the industrial applications of the high-temperature superconductor bulk.