Preparation and properties of Pb-doped Bi-Sr-Ca-Cu-O superconductors

Journal Article · Tue Aug 15 04:00:00 EDT 1989 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.344370· OSTI ID:5973405

Lee, H K; Lee, K W; Park, K; Huang, N M; Oh, O K; Kim, J S; Yoo, K H; Kim, Y B; Kim, C S; Cho, Y K; others, and

Electrical and magnetic properties of the superconducting oxides with nominal composition (Bi/sub 0.7/ Pb/sub 0.3/ )/sub 2/Sr/sub 2/Ca/sub 2/ Cu/sub 3/ O/sub /ital x// prepared from polymeric precursors have been investigated. Superconducting transition with zero-resistance temperature at /ital T/=108 K was achieved for a sample sintered at 840 /degree/C under a low oxygen pressure. The critical current density at 77 K in a zero magnetic field is /similar to/400 A/cm/sup 2/ , which is much higher than that of the Pb-free sample. Variations of the superconducting transition temperature, the critical current density, and magnetic properties with heat treatment time are discussed in connection with the structural properties.

• Research Organization: Korea Standards Research Institute, P. O. Box 3, Taedok Science Town, Taejon 302-340, Republic of Korea(KR); Korea Research Institute of Chemical Technology, P. O. Box 9, Taedok Science Town, Taejon 302-340, Republic of Korea
• OSTI ID: 5973405
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 66:4; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CURRENTS
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
FABRICATION
HEAT TREATMENTS
LEAD COMPOUNDS
LEAD OXIDES
MAGNETIC PROPERTIES
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYMERS
SINTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE