CUED Publications database

Fabrication and properties of TBCCO films via air-atomising spray deposition of thallium-free precursors

Su, LY and Grovenor, CRM and Goringe, MJ and Dewhurst, CD and Cardwell, DA and Jenkins, R and Jones, H (1994) Fabrication and properties of TBCCO films via air-atomising spray deposition of thallium-free precursors. Physica C: Superconductivity and its applications, 229. pp. 70-78. ISSN 0921-4534

Full text not available from this repository.

Abstract

The high-field properties of polycrystalline superconducting TlBaCaCuO films fabricated by the incorporation of thallium vapour into air-atomised BaCaCuO precursors are described. Thick films with T c values in the range 106-111 K have been prepared on polycrystalline yttria-stabilised zirconia substrates. The surface morphology, crystal structure and composition of the films are related to their high-field transport and magnetisation properties. Typical 10 mm × 9 mm films show J c values > 1×10 4 A/cm 2 at 77 K (0 T). The best film has a J c =1.3×10 4 A/cm 2 (I c =3.6 A) at 77 K (0 T). Films prepared on 26 mm×9 mm substrates show typical large-area J c values > 0.5×10 4 A/cm 2 (77 K, 0 T). A square planar specimen of dimensions 4.3 mm ×4.3 mm exhibited magnetisation J c values=1.2×10 5 A/cm 2 at 4.2 K (0.1 T), 9.3×10 4 A/cm 2 at 10 K (0.1 T), 3.3×10 4 A/ cm 2 at 4 K (8 T), and 1.6×10 4 A/cm 2 at 10 K (8 T). © 1994.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:54
Last Modified: 03 Aug 2017 03:21
DOI: