On the preparation of YBa/sub 2/Cu/sub 3/O/sub 7-chi/ ceramic high-temperature superconductor

Journal Article · Wed Mar 01 00:00:00 EST 1989 · Materials Research Bulletin; (USA)

DOI:https://doi.org/10.1016/0025-5408(89)90213-4· OSTI ID:5372936

Naveh, J; Pelly, I ^[1]

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1. Dept. of Geology and Mineralogy, Ben Gurion Univ. of the Negev, Beer Sheva 84105 (IL)

There are now many routes to the synthesis of YBa/sub 2/Cu/sub 3/O/sub 7-chi/. The method of mixing the oxides and heating them to 950 {sup 0}C is one of the earliest and seems to be the crudest. Nevertheless it seems that this is still the most widespread method used. Several high-temperature and other analytical techniques were performed on the superconductor prepared from BaCO/sub 3/, Y/sub 2/O/sub 3/ and CuO. It was found that the superconductor retained significant amounts of carbonate up to temperatures above 1200{sup 0}C. BaCO/sub 3/ should be heated separately to about 1400{sup 0}C before mixing with the other oxides, to prepare the superconductor at 950{sup 0}C.

• OSTI ID: 5372936
• Journal Information: Materials Research Bulletin; (USA), Vol. 24:3; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
SUPERCONDUCTIVITY
COPPER OXIDES
SUPERCONDUCTORS
FABRICATION
YTTRIUM OXIDES
BARIUM CARBONATES
HIGH TEMPERATURE
MIXTURES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
COPPER COMPOUNDS
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication
656100 - Condensed Matter Physics- Superconductivity