Influence of silver cladding on the formation and alignment of the (Bi2−xPbx)Sr2Ca2Cu3O10+δ phase
- 2 August 1993
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 63 (5) , 690-692
- https://doi.org/10.1063/1.110778
Abstract
Cross‐section transmission electron microscopy was used to investigate the interaction of silver with (Bi,Pb)‐Sr‐Ca‐Cu‐O phases during the formation of (Bi2−xPbx)Sr2Ca2Cu3O10+δ (Bi‐2223) in a silver‐sheathed wire containing a powder composed of (Bi,Pb)2Sr2CaCu2O8+δ (Bi‐2212) plus second phases. Observations of the interfacial regions of samples quenched at different stages of conversion revealed that (1) Bi‐2212 is initially in direct contact with silver, with the (001) planes parallel to the interface; (2) an amorphous layer between Bi‐2212 and silver appears during the induction period that precedes the conversion reaction; and (3) Bi‐2223 is detected at the silver/powder interface hundreds of minutes before it begins to appear in regions of the powder away from the interface. The implications of these results are presented and discussed.Keywords
This publication has 13 references indexed in Scilit:
- Stability and growth of the (Bi,Pb)2Sr2Ca2Cu3Ox phase in a silver sheathApplied Superconductivity, 1993
- Evidence for preferential formation of the (Bi,Pb)2Sr2Ca2Cu3Ox phase at the Ag interface in Ag-sheathed (Bi,Pb)2Sr2Ca2Cu3Ox tapesApplied Physics Letters, 1993
- Epitaxial growth of YbBa2Cu3O7−δ films on (100)-oriented MgO and SrTiO3 substrates by oxidation of a liquid alloy precursorJournal of Materials Research, 1992
- Critical Current Properties and Microstructures of Ag-Sheathed Bi-Based Superconducting WiresMRS Bulletin, 1992
- Use of a thermal gradient to study the role of liquid phase during the formation of Bismuth high temperature superconductorsPhysica C: Superconductivity and its Applications, 1992
- Microstructural study of Bi(2223)/Ag tapes with Jc(77 K, 0 T) values of up to 3.3*104A cm-2Superconductor Science and Technology, 1991
- Critical issues in the OPIT processing of high-Jc BSCCO superconductorsJOM, 1991
- High-J/sub c/ silver-sheathed Bi-based superconducting wiresIEEE Transactions on Magnetics, 1991
- Critical currents in Ag sheathed tapes of the 2223-phase in (Bi,Pb)-Sr-Ca-Cu-OIEEE Transactions on Magnetics, 1991
- Kinetic study and modeling of the solid-state reaction Y2BaCuO5 + 3BaCuO2 + 2CuO ⇉ 2YBa2Cu3O6.5−x + xO2Journal of Materials Research, 1990