PREPARATION AND CHARACTERIZATION OF MELT-TEXTURED ND1-XCU3OY MADE IN AIR(XBA2)

Authors
HU AM ZHAO ZX GAWALEK W WU M STRASSER T GOERNERT P
Citation
Am. Hu et al., PREPARATION AND CHARACTERIZATION OF MELT-TEXTURED ND1-XCU3OY MADE IN AIR(XBA2), Physica. C, Superconductivity, 282, 1997, pp. 431-434
Citations number
12
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
1
Pages
431 - 434
Database
ISI
SICI code
0921-4534(1997)282:<431:PACOMN>2.0.ZU;2-C
Abstract
High quality melt-textured Nd1+x Ba2-x Cu3Oy bulks have been prepared through a novel technology carried out in air. In present study, a mod ified melt processing technology is employed to prepare the melt-textu red Nd1+x Ba2-x Cu3Oy samples, and a post-annealing in flowing Ar is u sed to obtain the high Tc phase. AC susceptibility measurement shows t hat the critical temperature has reached 94.5K. The maximum levitation force is 7.4N for a sample with a diameter of 18mm. The Jc values are 2.4x10(4) A/cm(2) (0T,77K), 1.7x10(4) A/cm(2)(1T, 77K) and 3.3x10(5) A/cm(2) (8T, 21K). The fishtail effect is relatively obvious in 40-60K .