Abstract
Effects of Pb-substitution on the electrical and magnetic properties and the microstructure of the Bi-based cuprate superconductors, especially Bi-2212 (Bi2Sr2CaCu2O8+δ) polycrystalline phase, have been studied by XRD, SEM, TEM and magnetic measurements. The larger hysteresis loops of the Pb-substituted Bi-2212 phase in M-H curves were observed in comparison with the Pb-free Bi-2212 phase. The disorder of the structural modulation and the formation of micro-twins were found in the Pb-doped Bi-2212 phase by TEM observations. These results were caused by inhomogeneity of Pb concentration in the crystal.
Original language | English |
---|---|
Pages (from-to) | 1469-1472 |
Number of pages | 4 |
Journal | Key Engineering Materials |
Volume | 206-213 |
Issue number | II |
Publication status | Published - Jan 1 2001 |
Externally published | Yes |
Event | 7th Conference and Exhibition of the European Ceramic Society - Brugge, Belgium Duration: Sept 9 2001 → Sept 13 2001 |
Keywords
- Bi-2212 phase
- Magnetic properties
- Microstructure
- Pb-substitution
- Superconductivity
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering