NDLI: Processing and characterization of Ag-clad Bi-2223 superconductors

Content Provider	IEEE Xplore Digital Library
Author	Balachandran, U. Iyer, A.N. Jammy, R. Chudzik, M. Lelovic, M. Krishnaraj, P. Eror, N.G. Haldar, P.
Copyright Year	2002
Abstract	Practical applications of high-temperature superconductors will be governed by their current transport and mechanical characteristics. With careful control of the processing parameters high-quality long-length mono- and multifilament Bi-2223 conductors have been fabricated by the powder-in-tube technique. A critical current density (J/sub c/) of up to 1.2/spl times/10/sup 4/ A cm/sup -2/ has been observed at 77 K in a 1260-m-long multifilament conductor containing 37 monocore filaments. A high-temperature superconducting magnet and a prototype transformer were fabricated and characterized from such long-length conductors. Extensive studies on the in-situ strain characteristics of the mono- and multifilament conductors have been conducted. Multilayer silver/superconductor composite tapes, fabricated by a novel chemical etching technique, were also observed to exhibit improved strain tolerance characteristics. To further improve the current characteristics of the Bi-2223 tapes the wire-in-tube technique was adopted. A J/sub c/ value >10/sup 5/ A cm/sup -2/ at 77 K and in self field have been obtained in a Bi-2223 tape fabricated by the wire-in-tube method.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	2207
Ending Page	2210
Page Count	4
File Size	406676
File Format	PDF
ISSN	10518223
Volume Number	7
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconductivity Conductors High temperature superconductors Multifilamentary superconductors Magnetic field induced strain Process control Critical current density Superconducting magnets Prototypes Magnetic multilayers
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Progress in superconducting performance of rolled multifilamentary Bi-2223 HTS composite conductors

Enhanced Current-Carrying Capacity of Three-Layer Cable Composed of Bi-2223 Tapes Using the Longitudinal Field Effect

Advances in fabrication of Ag-clad Bi-2223 superconductors

The Influence of Tape Arrangements on the Critical Current of Bi-2223 Superconducting Current Leads

Evolution of core density of Ag-clad Bi-2223 tapes during process

Development of Bi-2223/Ag-alloy tapes

Multifilamentary Bi-2223 composite tapes made by a metallic precursor route

Prediction of E-J characteristics in Bi-2223/Ag tapes at low temperature and high magnetic field

Progress towards a long length metallic precursor process for multifilament Bi-2223 composite superconductors

Processing and characterization of Ag-clad Bi-2223 superconductors

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