Treffer: The bi-2223 superconducting wires with 200a-class critical current

Title:
The bi-2223 superconducting wires with 200a-class critical current
Source:
The 2006 applied superconductivity conference, Seattle, WA, August 27-September 1, 2006. Part III of three partsIEEE transactions on applied superconductivity. 17(2):3075-3078
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2007.
Publication Year:
2007
Physical Description:
print, 11 ref 3
Original Material:
INIST-CNRS
Document Type:
Konferenz Conference Paper
File Description:
text
Language:
English
Author Affiliations:
Sumitomo Electric Industries, Ltd, Konohana-ku, Osaka, 554-0024, Japan
School of Engineering. The University of Tokyo, Bunkyo-ku, Tokyo, 113-8656, Japan
ISSN:
1051-8223
Rights:
Copyright 2007 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Electrical engineering. Electroenergetics

Electronics
Accession Number:
edscal.19016950
Database:
PASCAL Archive

Weitere Informationen

Critical current of a silver-sheathed Bi-2223 tape using controlled-overpressure sintering has attained 201 A, which is equivalent to 493 A per 10 mm-width. The engineering current density is 21 kA/cm, while the critical current density on the total filaments area is 56 kA/cm2. Critical currents are also improved noticeably at low temperatures and high magnetic fields normal to the tape plane. Typical critical currents have reached 500 A at 4.2 K in 5 T and 200 A at 20 K in 10 T. The highest critical currents of long wires currently have reached 195 A for 70 m and 191 A for 178 m. The wires with 200 A-class critical current are similar in mechanical properties to 150 A-class long wires commercially produced by Sumitomo Electric using the controlled-overpressure sintering. The microstructure study has predicted far higher potential of critical current, according to the confirmed remaining issues on the 200 A-class tapes; incomplete orientation order, aggregation of alkaline earth cuprates and inter-granular Bi-2212.