Fabricating superconducting joints between Ag-clad BSCCO conductors

J. Y. Huang; A. N. Iyer; R. Jammy; M. Lanagan; U. Balachandran; P. Haldar; J. G. Hoehn

doi:10.1016/0964-1807(95)00059-E

Fabricating superconducting joints between Ag-clad BSCCO conductors

J. Y. Huang, A. N. Iyer, R. Jammy, M. Lanagan, U. Balachandran, P. Haldar, J. G. Hoehn

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Significant progress has been made in the development of Ag-clad BSCCO conductors, which makes them attractive for electrical power and high-field magnet applications. Long conductors of up to several hundred meters in length and with high critical current densities have been fabricated by the powder-in-tube technique. For efficient use of these conductors, it is imperative that they be linked by superconducting joints. With the use of a novel chemical-etching technique, the Ag sheath from on side of a tape was selectively etched to expose the underlying superconductor core. Joints were formed by bringing together the exposed cores of two such tapes and heat treating them at the required temperature. Critical current (I_c) within and through the joint was measured, and the microstructure analyzed in detail. I_c within and through the joint was typically 37 and 10 A, respectively. At present, effort is underway to improve current transport through the joint.

Original language	English (US)
Pages (from-to)	207-214
Number of pages	8
Journal	Applied Superconductivity
Volume	3
Issue number	4
DOIs	https://doi.org/10.1016/0964-1807(95)00059-E
State	Published - Apr 1995

All Science Journal Classification (ASJC) codes

General Engineering
General Physics and Astronomy

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10.1016/0964-1807(95)00059-E

Cite this

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title = "Fabricating superconducting joints between Ag-clad BSCCO conductors",

abstract = "Significant progress has been made in the development of Ag-clad BSCCO conductors, which makes them attractive for electrical power and high-field magnet applications. Long conductors of up to several hundred meters in length and with high critical current densities have been fabricated by the powder-in-tube technique. For efficient use of these conductors, it is imperative that they be linked by superconducting joints. With the use of a novel chemical-etching technique, the Ag sheath from on side of a tape was selectively etched to expose the underlying superconductor core. Joints were formed by bringing together the exposed cores of two such tapes and heat treating them at the required temperature. Critical current (Ic) within and through the joint was measured, and the microstructure analyzed in detail. Ic within and through the joint was typically 37 and 10 A, respectively. At present, effort is underway to improve current transport through the joint.",

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AU - Huang, J. Y.

AU - Iyer, A. N.

AU - Jammy, R.

AU - Lanagan, M.

AU - Balachandran, U.

AU - Haldar, P.

AU - Hoehn, J. G.

PY - 1995/4

Y1 - 1995/4

N2 - Significant progress has been made in the development of Ag-clad BSCCO conductors, which makes them attractive for electrical power and high-field magnet applications. Long conductors of up to several hundred meters in length and with high critical current densities have been fabricated by the powder-in-tube technique. For efficient use of these conductors, it is imperative that they be linked by superconducting joints. With the use of a novel chemical-etching technique, the Ag sheath from on side of a tape was selectively etched to expose the underlying superconductor core. Joints were formed by bringing together the exposed cores of two such tapes and heat treating them at the required temperature. Critical current (Ic) within and through the joint was measured, and the microstructure analyzed in detail. Ic within and through the joint was typically 37 and 10 A, respectively. At present, effort is underway to improve current transport through the joint.

AB - Significant progress has been made in the development of Ag-clad BSCCO conductors, which makes them attractive for electrical power and high-field magnet applications. Long conductors of up to several hundred meters in length and with high critical current densities have been fabricated by the powder-in-tube technique. For efficient use of these conductors, it is imperative that they be linked by superconducting joints. With the use of a novel chemical-etching technique, the Ag sheath from on side of a tape was selectively etched to expose the underlying superconductor core. Joints were formed by bringing together the exposed cores of two such tapes and heat treating them at the required temperature. Critical current (Ic) within and through the joint was measured, and the microstructure analyzed in detail. Ic within and through the joint was typically 37 and 10 A, respectively. At present, effort is underway to improve current transport through the joint.

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Fabricating superconducting joints between Ag-clad BSCCO conductors

Abstract

All Science Journal Classification (ASJC) codes

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