Partial Melt Growth Process of Bi2Sr2Ca1Cu2Ox Textured Tapes on Silver
- 1 July 1990
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 29 (7A) , L1096-1099
- https://doi.org/10.1143/jjap.29.l1096
Abstract
Bi2Sr2Ca1Cu2O x textured tapes with an excellent J c were synthesized by doctor-blade casting and a melt process. Green tape was laid on a silver foil and oxide/silver composite tape was heat treated. A highly textured microstructure was formed by slow cooling from 890°C to 870°C with the oxide in a partially melted state. The highest T c and J c (77 K, 0 T), 89 K and 1.3×104 A/cm2, respectively, were obtained by quenching from 870°C. However, J c at 4.2 K was higher for the sample slowly cooled to room temperature and reached 1.4×105 A/cm2 at 25 T. These results indicate the potential for the practical application of Bi-based oxide superconductors at both 77 K and 4.2 K.Keywords
This publication has 12 references indexed in Scilit:
- The High Field Magnetic Dependence of Critical Current Density at 4.2 K for Ag-Sheathed Bi2Sr2CaCu2Oy Superconducting TapeJapanese Journal of Applied Physics, 1990
- High-field critical current densities in Bi2Sr2Ca1Cu2O8+x/Ag wiresApplied Physics Letters, 1989
- Preparation of Pure 80 K Superconductors in the Bi-Sr-Ca-Cu Oxide SystemJapanese Journal of Applied Physics, 1989
- Structural Analysis on Tc Variation of Bi2Sr2-xCa1+xCu2O8+yJapanese Journal of Applied Physics, 1989
- Properties of Bi(Pb)-Sr-Ca-Cu-O superconducting tapes prepared by the doctor-blade processApplied Physics Letters, 1989
- Resistivity Zero of Quenched Bi2Sr2CaCu2Ox at Above 90 KJapanese Journal of Applied Physics, 1989
- Fabrication of Flexible Ribbons of High-Tc Bi(Pb)-Sr-Ca-Cu-O SuperconductorsJapanese Journal of Applied Physics, 1989
- High-Tc superconducting phases in the series Bi2.1(Ca, Sr)n+lCunO2n+4+δNature, 1988
- Growth and Very Anisotropic Upper Critical Field of Single-Crystal Bi2Sr2CaCu2OyJapanese Journal of Applied Physics, 1988
- A New High-Tc Oxide Superconductor without a Rare Earth ElementJapanese Journal of Applied Physics, 1988