TY - JOUR
T1 - Growth and possible size limitation of quality single-grain YBa2Cu3O7
AU - Meng, R. L.
AU - Gao, L.
AU - Gautier-Picard, P.
AU - Ramirez, D.
AU - Sun, Y. Y.
AU - Chu, C. W.
N1 - Funding Information:
ported in part by ARPA Grant No. MDA 972-90-J-1001, NSF Grant No. DMR 91-22043, the State of Texas through the Texas Center for Superconductivity at the University of Houston, and the T.L.L. Temple Foundation.
PY - 1994/11/1
Y1 - 1994/11/1
N2 - We have studied the growth of disks of single-grain YBa2Cu3O7 (3BCO) with diameter to 5 cm using a top-seeded melt-texture technique. The quality of these YBCO disks was found to depend critically on the quality and size of the seed used, the temperature schedule of the growth adopted, the amount of Y2BaCuO5 and Pt added, and the size of the final disks processed. Samples of a diameter of 2.5 cm so-prepared have been observed to shield a magnetic field greater than 20 T at 4.2 K and to trap a field of 1.3 T at 77 K. However, no significant increase in the trapped field has been achieved by increasing the diameter of the disk to beyond ∼ 3 cm.
AB - We have studied the growth of disks of single-grain YBa2Cu3O7 (3BCO) with diameter to 5 cm using a top-seeded melt-texture technique. The quality of these YBCO disks was found to depend critically on the quality and size of the seed used, the temperature schedule of the growth adopted, the amount of Y2BaCuO5 and Pt added, and the size of the final disks processed. Samples of a diameter of 2.5 cm so-prepared have been observed to shield a magnetic field greater than 20 T at 4.2 K and to trap a field of 1.3 T at 77 K. However, no significant increase in the trapped field has been achieved by increasing the diameter of the disk to beyond ∼ 3 cm.
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U2 - 10.1016/0921-4534(94)90792-7
DO - 10.1016/0921-4534(94)90792-7
M3 - Article
AN - SCOPUS:0028540122
VL - 232
SP - 337
EP - 346
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 3-4
ER -