Superconducting glass-ceramics in BiSrCaCu2Al0.5Ox—Comparison between rod and powder compacted specimens
- 1 June 1991
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 6 (6), 1156-1159
- https://doi.org/10.1557/jmr.1991.1156
Abstract
Superconducting properties are studied for glass-ceramics which were prepared by reheating glass rods and the glass powder compacts in the BiSrCaCu2Al0.5Ox system, respectively. The glass-ceramic rod specimens obtained by reheating rod glass at 800–830 °C for 50 h have a Tc (R = 0) of 85 K, while the disk specimens obtained by reheating the powdered glass compacts in the same way do not exhibit superconductivity above 77 K. This difference in superconductivity between the specimens is discussed in terms of the crystallization process and the amount of oxygen absorption of the specimens during heating.Keywords
This publication has 10 references indexed in Scilit:
- Superconducting Glass-Ceramic Fine Rods in Bi1Ca1Sr1Cu2Al0.5Ox Prepared under a Temperature Gradient –Tc and the Texture of Specimen–Japanese Journal of Applied Physics, 1989
- Magnetic measurements of superconducting glass-ceramic fine rods in Bi1Ca1Sr1Cu2Al0.5Ox prepared under a temperature gradientApplied Physics Letters, 1989
- Superconducting glass-ceramic rods in BiCaSrCu2Ox prepared by crystallization under a temperature gradientApplied Physics Letters, 1988
- Effect of Lanthanide Ions on the Properties of Ln1Ba2Cu3O7 Thin FilmsJapanese Journal of Applied Physics, 1988
- glass and superconducting glass ceramicsPhysical Review B, 1988
- Amorphous-to-crystalline transformations in bismuth-oxide-based high T c superconductorsApplied Physics Letters, 1988
- Glass Formation of High-Tc Compound BiCaSrCu2Ox by Rapid QuenchingJapanese Journal of Applied Physics, 1988
- High-Tc Superconducting Glass Ceramics Based on the Bi-Ca-Sr-Cu-O SystemJapanese Journal of Applied Physics, 1988
- A New High-Tc Oxide Superconductor without a Rare Earth ElementJapanese Journal of Applied Physics, 1988
- Depolymerization of germanium dioxide glass by copper(I) and copper(II) oxidesInorganic Chemistry, 1973