TY - JOUR
T1 - Effect of BaO2 and fine Gd2BaCuO7-δ addition on the superconducting properties of air-processed GdBa 2Cu3O7-δ
AU - Xu, Caixuan
AU - Hu, Anming
AU - Sakai, Naomichi
AU - Izumi, Mitsuru
AU - Hirabayashi, Izumi
PY - 2005/3/1
Y1 - 2005/3/1
N2 - Single-domain GdBa2Cu3O7-δ (Gd123) bulk superconductors were fabricated in air and studied with different BaC 2 contents and Gd2BaCuO7-δ (Gd211) initial particle sizes. The experiments showed that BaO2 addition effectively suppressed the Gd/Ba substitution and therefore enhanced superconducting properties such as Jc and Birr. An optimum addition amount is Gd123:BaO2 = 1:0.1 molar. By employing fine Gd211, Jc at low magnetic fields is further enhanced. At B = 0 and 77 K, Jc reached 86 000 A cm-2, which is a record high Jc value for melt-processed Gd123 bulk samples in air.
AB - Single-domain GdBa2Cu3O7-δ (Gd123) bulk superconductors were fabricated in air and studied with different BaC 2 contents and Gd2BaCuO7-δ (Gd211) initial particle sizes. The experiments showed that BaO2 addition effectively suppressed the Gd/Ba substitution and therefore enhanced superconducting properties such as Jc and Birr. An optimum addition amount is Gd123:BaO2 = 1:0.1 molar. By employing fine Gd211, Jc at low magnetic fields is further enhanced. At B = 0 and 77 K, Jc reached 86 000 A cm-2, which is a record high Jc value for melt-processed Gd123 bulk samples in air.
UR - http://www.scopus.com/inward/record.url?scp=14844323631&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=14844323631&partnerID=8YFLogxK
U2 - 10.1088/0953-2048/18/3/004
DO - 10.1088/0953-2048/18/3/004
M3 - Article
AN - SCOPUS:14844323631
VL - 18
SP - 229
EP - 233
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 3
ER -