Published May 2002 | Version v1
Journal article Metadata-only

Effect of CeO2 and Pt doping on the microstructure of Nd-Sm123 bulk superconductor fabricated in air

Creators

  • 1. Superconductivity Research Laboratory, ISTEC, Morioka Lab, Iioka-Shinden, Morioka-city, Iwate (Japan)

Description

We have succeeded in fabricating a (Nd, Sm)-Ba-Cu-O bulk superconductor with high Tc and sharp superconducting transition using Ba-rich (Nd0.8, Sm0.2)3.6Ba2.4Cu1.8O9.6 (NS422ss) powder in air. The magnetic property of this melt-textured bulk was similar in Tc and superconducting transition to the bulk with the same nominal composition melt-textured under low oxygen partial pressure (pO2). The samples also showed relatively high Jc values with the secondary peak effect, although Jc values were slightly lower than the samples melt-textured in low pO2. It was also found that CeO2 and Pt doping was very effective in improving Jc values even for Nd-Sm123 bulk melt textured in air. (author)

Availability note (English)

Available online at the Web site for the journal Superconductor Science and Technology (ISSN 1361-6668) http://www.iop.org/

Additional details

Identifiers

URL
http://www.iop.org/;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
15
Journal Issue
5
Journal Page Range
p. 778-780
ISSN
0953-2048

Conference

Title
3. international workshop on processing and applications of superconducting (RE)BCO large grain materials
Dates
11-13 Jul 2001
Place
Seattle, WA (United States)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
33020249
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARIUM OXIDES; CERIUM ADDITIONS; CRITICAL CURRENT; CUPRATES; HIGH-TC SUPERCONDUCTORS; NEODYMIUM OXIDES; PLATINUM ADDITIONS; SAMARIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALLOYS; BARIUM COMPOUNDS; CERIUM ALLOYS; CHALCOGENIDES; COPPER COMPOUNDS; CURRENTS; ELECTRIC CURRENTS; NEODYMIUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; RARE EARTH COMPOUNDS; SAMARIUM COMPOUNDS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS