TEXTUGING OF HIGH-TEMPERATUE SUPERCONDUCT ORS

Citation
G. Hofer et al., TEXTUGING OF HIGH-TEMPERATUE SUPERCONDUCT ORS, Metall, 49(2), 1995, pp. 112-115
Citations number
15
Categorie Soggetti
Metallurgy & Metallurigical Engineering
Journal title
MetallACNP
ISSN journal
00260746
Volume
49
Issue
2
Year of publication
1995
Pages
112 - 115
Database
ISI
SICI code
0026-0746(1995)49:2<112:TOHSO>2.0.ZU;2-N
Abstract
In HTS-conductors like YBa2Cu3O6.51+x and DyBa2Cu3O6.5+x, current flow s in the basal planes of the Cu-O-Pyramids of the crystal structure (w hich are parallell to the crystallographic a,b-planes) and along the c rystallographic b-axis (the so-called chains). In a conductor, these s uperconducting planes and directions must be aligned parallel to the d esired current direction. Thus, the superconductor needs to be texture d. In this paper, a three-step-process is presented for texturing poly crystalline YBa2CuO6.5+x and DyBa2Cu3O6.5+x on silver. The highest cri tical transport current densities, i(ct), up to date are 6360 A/cm2 fo r YBa2Cu3O6.5+x and 5070 A/cm2 for DyBa2Cu3O6.5+x at 77 K and O T. In order to achieve still higher critical current densities, the degree o f texturing must be increased.