Properties of Pb-Doped Bi-Sr-Ca-Cu-O Superconductors Prepared by the Intermediate Pressing Process
Abstract
Effects of an intermediate press process on the microstructure and superconducting properties of the Pb-doped Bi-Sr-Ca-Cu-O system have been studied. Samples were made by sintering uniaxially pressed pellets after the conventional pellet-sintering process. Highly textured microstructure with strong (001) reflections was confirmed by X-ray diffraction and SEM. A short sintering time was sufficient to form only the high-Tc phase. By this intermediate pressing and sintering process, Jc was much increased and the magnetic field dependence of Jc was also improved. The highest Jc achieved was 3560 A/cm2 at 0 T and 77.3 K.
- Publication:
-
Japanese Journal of Applied Physics
- Pub Date:
- April 1989
- DOI:
- 10.1143/JJAP.28.L595
- Bibcode:
- 1989JaJAP..28L.595A
- Keywords:
-
- Bismuth Oxides;
- Cold Pressing;
- Copper Oxides;
- Doped Crystals;
- High Temperature Superconductors;
- Lead Oxides;
- Calcium Oxides;
- Current Density;
- Microstructure;
- Sintering;
- Strontium Compounds;
- Solid-State Physics