NDLI: Improvement of superconducting properties of Bi-2212 round wire and primary test results of large capacity Rutherford cable

Content Provider	IEEE Xplore Digital Library
Author	Hasegawa, T. Ohtani, N. Koizumi, T. Aoki, Y. Nagaya, S. Hirano, N. Motowidlo, L. Sokolowski, R.S. Scanlan, R.M. Dietderich, D.R. Hanai, S.
Copyright Year	2002
Abstract	We have developed HTS cables using Bi-2212 round wires, which have high mechanical strength and an average J/sub c/ of 200 kA/cm/sup 2/ at 4.2 K in self-field. Four designs of cables were fabricated in this work and those tables could carry I/sub c/ values from 1 kA to 10 kA at 4.2 K and self-field depending on the number of strands. A 70m-long 20-strand Rutherford cable was successfully manufactured. Optimization of heat treatment conditions was effective to reduce I/sub c/ degradation observed in the case of heat treatment with a long length. I/sub c/ values of a Rutherford cable were measured under loading at 4.2 K in 4 T. The critical values of the stress on face loading and edge loading were 60 MPa and 100 MPa, respectively. We successfully obtained high J/sub c/ value of 500 kA/cm/sup 2/, which was almost double that of the conventional wires capitalize "Rutherford".
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	3034
Ending Page	3037
Page Count	4
File Size	375960
File Format	PDF
ISSN	10518223
Volume Number	11
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting filaments and wires Testing Superconducting cables Telephony Superconducting materials Superconducting devices Large-scale systems Conducting materials Mechanical cables Manufacturing
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Study on Bi-2212 Rutherford Cabling Process for SMES

Development of CCVD ceramic insulation for Bi-2212 superconducting wires and Rutherford cables

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Development of round multifilament Bi-2212/Ag wires for high field magnet applications

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Bi-2212 phase formation process in multifilamentary Bi-2212/Ag wires and tapes

The Axial Tensile Stress–Strain Characterization of Ag-Sheathed Bi2212 Round Wire

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Improvement of superconducting properties of Bi-2212 round wire and primary test results of large capacity Rutherford cable

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