High Jc YBa2Cu3Oy superconductor prepared by melt-textured-growth (MTG) process
- 1. New South Wales Univ., Kensington, NSW (Australia). School of Material Science and Engineering
- 2. Commonwealth Scientific and Industrial Research Organization, Lindfield, NSW (Australia). Div. of Applied Physics
Description
Various processes of the melt-texture-growth (MTG) technique have been developed to produce high Jc superconductors. By this method, controlled solidification of the melt enables grains to grow unidirectionally. In contrast to sintered materials, the critical current density of the MTG materials is much larger and their degradation under a magnetic field is much less. In this study, high Jc bulk YBa2Cu3Oy superconductors were fabricated using the MTG process. The samples show large magnetic hysteresis and the value of critical current density Jc was estimated by using Bean critical state model. The microstructures of the samples were analysed using various methods. The effect of structural defects on flux pinning is discussed. 11 refs., 6 figs
Additional details
Publishing Information
- Publisher
- CSIRO.
- Imprint Place
- Melbourne (Australia)
- ISBN
- 0 643 05409 X
- Imprint Title
- Ceramics adding the value. AUSTCERAM 92: proceedings of the international ceramic conference, Australia 1992
- Imprint Pagination
- 611 p.
- Journal Page Range
- p. 671-676.
Conference
- Title
- international ceramic conference.
- Acronym
- AUSTCERAM 92
- Dates
- 1992.
- Place
- Melbourne, VIC (Australia).
INIS
- Country of Publication
- Australia
- Country of Input or Organization
- Australia
- INIS RN
- 24056500
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- BARIUM OXIDES; COPPER OXIDES; CRYSTAL GROWTH METHODS; CURRENT DENSITY; DISLOCATIONS; EXPERIMENTAL DATA; FABRICATION; MICROSTRUCTURE; SOLIDIFICATION; STRUCTURAL CHEMICAL ANALYSIS; SUPERCONDUCTING COMPOSITES; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COMPOSITE MATERIALS; COPPER COMPOUNDS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DATA; INFORMATION; LINE DEFECTS; MATERIALS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS