Crystallization of metal-oxide glasses in Bi-Sr-Ca-Cu-O systems
- 1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (USA)
Description
A crystallization study has been carried out for rapidly solidified Bi-Sr-Ca-Cu-O glasses with nominal compositions Bi2Sr2Ca2Cu3Ox, Bi2Sr2Ca3Cu4Ox, and Bi2Sr2Ca4Cu5Ox. A temperature-time-transformation diagram for the glass with nominal composition Bi2Sr2Ca2Cu3Ox has been constructed, within which crystalline superconducting and nonsuperconducting phase regions are identified. Eutectic and primary crystallization have been found to occur during the annealing process in these metal oxides. Glass transition temperature Tg values, superconducting transition temperature values of crystallized products, and microstructural changes are measured and analyzed by differential thermal analysis, electrical resistivity, and magnetization shielding, x-ray diffraction, and scanning electron microscopy experiments. Also discussed are thermodynamics and kinetics of crystallization processes and the formation of the 110-K superconducting phase
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 40
- Journal Issue
- 4
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 2247-2253
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20083848
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BISMUTH OXIDES; CALCIUM OXIDES; COPPER OXIDES; CRYSTAL STRUCTURE; CRYSTALLIZATION; GLASS; PHASE DIAGRAMS; SINTERED MATERIALS; STRONTIUM OXIDES; SUPERCONDUCTIVITY; SYNTHESIS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; DIAGRAMS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; INFORMATION; MATERIALS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; STRONTIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS