The synthesis and characterization of (Tl0.6Pb0.2Bi0.2) (Sr1.8Ba0.2)Ca2Cu3O9+x powder and Ag-sheathed tape
Richardson, K.A., Wu, S., Bracanovic, D., De-Groot, P.A.J., Al-Mosawi, M.K., Ogborne, D.M. and Weller, M.T. (1995) The synthesis and characterization of (Tl0.6Pb0.2Bi0.2) (Sr1.8Ba0.2)Ca2Cu3O9+x powder and Ag-sheathed tape. Superconductor Science and Technology, 8, (4), 238-244. (doi:10.1088/0953-2048/8/4/008).
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Description/Abstract
We have prepared a single-phase superconducting Tl-1223 powder with Tc above 110 K and used this promising material to produce Ag-sheathed tape. The powder was synthesized by partially substituting Pb and Bi for Tl, and substituting Sr for Ba in a stoichiometry (Tl0.6Pb0.2Bi0.2)(Sr1.8Ba0.2)Ca2Cu3O9+x suggested by Liu et al. The accelerated formation and stabilization of the Tl-1223 phase was observed. The non-agglomerated powder was found to have a homogeneous platelike morphology with average grain size 4.5 mu m and maximum grain size 18 mu m. The intragrain critical current density was determined to be 6.3*107 A cm-2 at 5 K, 1 T, and 6.5*104 A cm-2 at 77 K, 1 T. Ag-sheathed tapes were fabricated with this powder and magnetic and transport critical current densities of as-rolled tapes and heat-treated tapes were measured. A transport critical current density of 5.6*103 A cm-2 was obtained at 77 K, O T. The relationship between processing conditions, microstructure, and superconducting properties of the tape were also investigated
| Item Type: | Article |
|---|---|
| ISSNs: | 0953-2048 (print) |
| Related URLs: | |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TN Mining engineering. Metallurgy Q Science > QD Chemistry |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences University Structure - Pre August 2011 > School of Chemistry |
| Item ID: | 21726 |
| Date Deposited: | 30 Jan 2007 |
| Last Modified: | 25 Apr 2013 11:07 |
| Contributors: | Richardson, K.A. (Author) Wu, S. (Author) Bracanovic, D. (Author) De-Groot, P.A.J. (Author) Al-Mosawi, M.K. (Author) Ogborne, D.M. (Author) Weller, M.T. (Author) |
| Date: | 1995 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/21726 |
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