Superconducting properties of bulk YBa2Cu307-y
- 1. R and D Lab.s, Nippon Steel Corp, 1618 Ida, Nakahara-ku, Kawasaki Kanagawa 211 (Japan)
Description
Large crystals of YBa2CuO3O7-suby were undirectionally and continuously grown by a modified quench and melt growth (QMG) process with a temperature gradient. Superconducting properties of these crystals were measured. Samples prepared by a conventional QMG process without a temperature gradient have high critical current density (Jc) values exceeding 104A/cm2 at 1T and 77K. However, crystals prepared by this process without a temperature gradient were small, i.e. 30 mm2 x 1mm. The authors discuss how they modified the QMG method to grow superconducting crystals using a temperature gradient, and obtained large crystals up to 200mm2 x 1.5mm. It was found that superconducting current flowed throughout the crystal. A Jc value as high as conventional QMG processed materials was confirmed by the magnetic induced field method
Additional details
Publishing Information
- Publisher
- Elsevier Science Pub. Co., Inc.
- Imprint Place
- New York, NY (USA)
- Imprint Title
- Proceedings of the international conference on materials and mechanisms of superconductivity. High temperature superconductors II. Part 1-2
- Imprint Pagination
- 1744 p.
- Journal Page Range
- p. 1217-1218.
Conference
- Title
- International conference on materials and mechanisms of superconductivity - high-temperature superconductors II.
- Dates
- 23-28 Jul 1989.
- Place
- Stanford, CA (USA).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21057768
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BARIUM OXIDES; COPPER OXIDES; CRITICAL CURRENT; CRITICAL FIELD; CRYSTAL GROWTH; CURRENT DENSITY; MELTING; QUENCHING; SUPERCONDUCTIVITY; TEMPERATURE GRADIENTS; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CURRENTS; ELECTRIC CONDUCTIVITY; ELECTRIC CURRENTS; ELECTRICAL PROPERTIES; HEAT TREATMENTS; MAGNETIC FIELDS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS
Optional Information
- Secondary number(s)
- CONF-890718--.