Preparation and characterization of superconducting (Bi,Pb) sub 2 Sr sub 2 Ca sub 2 Cu sub 3 oxides with T sub c above 110 K by coprecipitation in triethylamine media

Journal Article · Wed Aug 22 04:00:00 EDT 1990 · Inorganic Chemistry; (USA)

DOI:https://doi.org/10.1021/ic00342a012· OSTI ID:6290924

Shei, C Y; Liu, R S ^[1]; Chang, C T ^[2]; Wu, P T ^[3]

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1. National Tsing Hua Univ., Hsinchu (Taiwan) Institute of Atomic and Molecular Science, Taipei (Taiwan)
2. National Tsing Hua Univ., Hsinchu (Taiwan)
3. Institute of Atomic and Molecular Science, Taipei (Taiwan)

Bi(Pb)-Sr-Ca-Cu-O superconducting powders were prepared from an aqueous solution containing Bi, Pb, Sr, Ca, and Cu salts and oxalic acid via coprecipitation using triethylamine as a base. The dried precipitate was found to have satisfactory stoichiometry and a particle size of 0.3 {mu}m. Subsequent calcination at 800{degree}C for 12 h and sintering at 860{degree}C for 72 h yield superconducting with T{sub c} above 110 K. This process can be employed in a large-scale preparation of the Bi(Pb)-Sr-Ca-Cu-O superconducting powder. 9 refs., 6 figs., 1 tab.

• OSTI ID: 6290924
• Journal Information: Inorganic Chemistry; (USA), Journal Name: Inorganic Chemistry; (USA) Journal Issue: 17 Vol. 29:17; ISSN 0020-1669; ISSN INOCA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHEMICAL PREPARATION
COPPER COMPOUNDS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
INFORMATION
LEAD COMPOUNDS
NUMERICAL DATA
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
SUPERCONDUCTIVITY
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE