The role of bismuth substitution on the phase development and melting behavior of Tl1.1-xBixBa0.4Sr1.6Ca 2Cu3O9-δ was studied. The substitution limit was x=0.25, and a low-melting liquid was formed when the limit was exceeded. The barium content of the superconductor decreased with increasing bismuth substitution, which coincided with BaBiO3 formation. Magnetization and X-ray diffraction data revealed that the single-layer Tl compound coexists with BaBiO3 up to x=0.8. For selected compositions, superconductor wire was fabricated by a powder-in-tube process. The critical current density was measured and correlated with the microstructure.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering