TY - JOUR
T1 - Effect of BaO2 addition on superconducting properties of melt-processed (Sm, Eu, Gd)Ba2Cu3O7-δ superconductors
AU - Hu, A.
AU - Zhou, H.
AU - Nariki, S.
AU - Sakai, N.
AU - Murakami, M.
AU - Hirabayashi, I.
PY - 2004/3/1
Y1 - 2004/3/1
N2 - We fabricated large c-axis-oriented single-grain (Sm, Eu, Gd)Ba2Cu3O7-δ bulk superconductors with BaO2 addition under 1% O2 partial pressure in Ar. The experiment showed that BaO2 addition significantly reduced RE-Ba substitution, slightly hindered the coarsening of (Sm, Eu, Gd)2BaCuO5 inclusion, and improved the superconducting properties. An optimum addition amount was around 0.1-0.18 mol-1 RE123. At 77 K, the critical current density reached 83 000 A cm-2 in zero field. A disc 3.5 cm in diameter trapped a field of 1.27 T at 77 K.
AB - We fabricated large c-axis-oriented single-grain (Sm, Eu, Gd)Ba2Cu3O7-δ bulk superconductors with BaO2 addition under 1% O2 partial pressure in Ar. The experiment showed that BaO2 addition significantly reduced RE-Ba substitution, slightly hindered the coarsening of (Sm, Eu, Gd)2BaCuO5 inclusion, and improved the superconducting properties. An optimum addition amount was around 0.1-0.18 mol-1 RE123. At 77 K, the critical current density reached 83 000 A cm-2 in zero field. A disc 3.5 cm in diameter trapped a field of 1.27 T at 77 K.
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U2 - 10.1088/0953-2048/17/3/040
DO - 10.1088/0953-2048/17/3/040
M3 - Article
AN - SCOPUS:1642275551
SN - 0953-2048
VL - 17
SP - 545
EP - 548
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
IS - 3
ER -