Partial melt processing and electrical properties of Bi-Sr-Ca-Cu-o superconducting thick films on (100) MgO substrates

Ilyushechkin, A.Y., Yamashita, T., Alarco, J.A., & Mackinnon, I.D.R. (1997) Partial melt processing and electrical properties of Bi-Sr-Ca-Cu-o superconducting thick films on (100) MgO substrates. Superconductor Science and Technology, 10(5), pp. 330-336.

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Superconducting thick films of Bi2Sr2CaCu2Oy (Bi-2212) on single-crystalline (100) MgO substrates have been prepared using a doctor-blade technique and a partial-melt process. It is found that the phase composition and the amount of Ag addition to the paste affect the structure and superconducting properties of the partially melted thick films. The optimum heat treatment schedule for obtaining high Jc has been determined for each paste. The heat treatment ensures attainment of high purity for the crystalline Bi-2212 phase and high orientation of Bi-2212 crystals, in which the c-axis is perpendicular to the substrate. The highest Tc, obtained by resistivity measurement, is 92.2 K. The best value for Jct (transport) of these thick films, measured at 77 K in self-field, is 8 × 10 3 Acm -2.

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ID Code: 57463
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By (since 1996): 8
Export Date: 19 February 2013
Source: Scopus
Language of Original Document: English
Correspondence Address: UniQuest Ltd., University of Queensland, QLD 4072, Australia
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Keywords: BSCCO superconductors, high temperature superconductor tapes, critical current density, crystalline Bi-2212
DOI: 10.1088/0953-2048/10/5/011
ISSN: 0953-2048
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Ceramics (091201)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Functional Materials (091205)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 25 Feb 2013 22:30
Last Modified: 25 Feb 2013 22:30

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