The phase equilibrium diagram of Bi2O3–SrO–CaO–CuO–A tool of processing the high- Tc superconducting bismuth-compounds

✍ Scribed by Dr. Peter Majewski; Dr. Bernhard Hettich; Dr. Herbert Jaeger; Dr. Klaus Schulze

• Publisher: John Wiley and Sons
• Year: 1991
• Tongue: English
• Weight: 194 KB
• Volume: 3
• Category: Article
• ISSN: 0935-9648
• DOI: 10.1002/adma.19910030114

✦ Synopsis

Briefly after the single Cu-0-layer-containing compound Bi,Sr,CuO,+, with variable Sr and Cu contents (the so called Raveau-phase or 2201 phase) was found to be superconducting with a critical temperature -10 K,I1] the two and three Cu-0 layer structures were s~nthesized.1~ - This homologous series of structures with increasing number of Cu-0 layers (as well as Ca-0 layers) is given by the formula Bi,Sr,Ca,_,Cu,O,,+,+, with n = 1, 2, 3. The transition temperature rises with increasing number of Cu-0 layers, i.e. T, = 80-90 K depending on the oxygen content