Optimization of the superconducting properties in the Bi-Sr-Ca-Cu-O system
- 1. IBM Corp., Yorktown Heights, NY (USA)
- 2. DOE, Argonne, IL (USA)
- 3. Polytechnic Univ., Brooklyn, NY (USA)
Description
A synthesis route for the preparation of Bi2Sr2Ca2Cu3O(12-delta) material has been developed. First the precursor material is prereacted and the material is sintered close below the melting point. A cyclic heat treatment is then used for the formation of samples with optimal superconducting properties. It is found that the material has a Tc of 110K and large superconducting volume fractions at high temperatures. The Tc temperature depends on the oxygen coefficient delta for the compounds Bi2(Sr1-xCax)2CuO(8-delta), Bi2(Sr1-yCay)3Cu2O(10-delta), and Bi2(Sr1-zCaz)4Cu3O(12-delta). It is noted that the Sr/Ca ratio in the first two compounds is significant in that both compounds show extended areas of solid solution, yet only in the first compound does the superconducting volume depend on Sr/Ca
Additional details
Publishing Information
- Publisher
- Minerals, Metals and Materials Society.
- Imprint Place
- Warrendale, PA (USA)
- Imprint Title
- High temperature superconducting compounds II; Proceedings of the Second Symposium, Anaheim, CA, Feb. 20, 21, 1990
- Imprint Pagination
- 522 p.
- Journal Page Range
- p. 97-104.
Conference
- Title
- 2. Minerals, Metals, and Materials Society (TMS) symposium on high temperature superconducting compounds.
- Dates
- 20-21 Feb 1990.
- Place
- Anaheim, CA (USA).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22042718
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BISMUTH OXIDES; CALCIUM OXIDES; COPPER OXIDES; HIGH-TC SUPERCONDUCTORS; SINTERING; SQUID DEVICES; STRONTIUM OXIDES; SUPERCONDUCTIVITY; SYNTHESIS; TRANSITION TEMPERATURE
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTRONIC EQUIPMENT; EQUIPMENT; FABRICATION; FLUXMETERS; MEASURING INSTRUMENTS; MICROWAVE EQUIPMENT; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; STRONTIUM COMPOUNDS; SUPERCONDUCTING DEVICES; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Secondary number(s)
- CONF-900287--.