Non-magnetic substrates for low cost YBCO coated conductors

Citation
Clh. Thieme et al., Non-magnetic substrates for low cost YBCO coated conductors, IEEE APPL S, 11(1), 2001, pp. 3329-3332
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN journal
1051-8223 → ACNP
Volume
11
Issue
1
Year of publication
2001
Part
3
Pages
3329 - 3332
Database
ISI
SICI code
1051-8223(200103)11:1<3329:NSFLCY>2.0.ZU;2-9
Abstract
CuNiAl and NiCr alloys were made and processed to non-magnetic, bi-axially textured substrates. Epitaxial YSZ and YBCO were deposited by pulsed laser deposition on the CuNiAl, Samples were cross sectioned and investigated wit h TEM. It appears that Al forms a thin oxide layer at the CuNiAl surface th at acts as a template for the subsequent YSZ layer. The 1.2 mum YBCO layer had a current density of 0.16MA/cm(2) at 75K and self field. On the NiCr su bstrates an Y2O5 Seed layer was deposited with E-beam evaporation, followed by RF sputter deposition of YSZ and a CeO2 cap layer. These substrates wer e coated with a 0.4 mum YBCO layer using a trifluoroacetate solution, a ver y cost effective metal-organic deposition process, These samples carried cr itical currents exceeding 0.7MA/cm(2) at 77K, self field.