Material for resistive barriers in Bi-2223/Ag tapes

P. Kovc, I. Husek, W. Pachla, M. Diantoro, G. Bonfait, Jon-Paul Maria, K. Frhlich, L. Kopera, R. Diduszko, A. Presz

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The reactivities of several oxide materials (OM) in direct contact with BSCCO powder has been tested at a temperature of approximately 845°C in air. The OM such as BaZrO3, SrCO3, MgO and ZrO2 showing little or no reactivity with BSCCO were mixed (10 wt%) with a BSCCO precursor powder and used for monocore tapes made by a standard powder-in-tube technique. The microstructure of the BSCCO+OM cores was analysed by SEM and XRD and the transport current properties-critical current, pinning force and resistance up to 16 T-were measured as a function of the magnetic field for various orientations with respect to the ab plane. The OM used influenced the electrical properties of the Bi-2223 phase in different ways. This is because the oxides react with BSCCO during the heat treatment and simultaneously affect the 2212 → 2223 phase transformation as well as the Bi-2223 grain growth and grain connectivity. Submicrometre commercial SrCO3 powder was evaluated as the best material from all those tested, for resistive barriers in Bi-2223/Ag tapes.

Original languageEnglish (US)
Pages (from-to)966-972
Number of pages7
JournalSuperconductor Science and Technology
Volume14
Issue number11
DOIs
StatePublished - Nov 1 2001

Fingerprint

Tapes
Oxides
tapes
Powders
oxides
reactivity
Critical currents
Grain growth
phase transformations
critical current
Electric properties
heat treatment
Phase transitions
electrical properties
Heat treatment
Magnetic fields
tubes
microstructure
Microstructure
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

Kovc, P., Husek, I., Pachla, W., Diantoro, M., Bonfait, G., Maria, J-P., ... Presz, A. (2001). Material for resistive barriers in Bi-2223/Ag tapes. Superconductor Science and Technology, 14(11), 966-972. https://doi.org/10.1088/0953-2048/14/11/313
Kovc, P. ; Husek, I. ; Pachla, W. ; Diantoro, M. ; Bonfait, G. ; Maria, Jon-Paul ; Frhlich, K. ; Kopera, L. ; Diduszko, R. ; Presz, A. / Material for resistive barriers in Bi-2223/Ag tapes. In: Superconductor Science and Technology. 2001 ; Vol. 14, No. 11. pp. 966-972.
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Kovc, P, Husek, I, Pachla, W, Diantoro, M, Bonfait, G, Maria, J-P, Frhlich, K, Kopera, L, Diduszko, R & Presz, A 2001, 'Material for resistive barriers in Bi-2223/Ag tapes', Superconductor Science and Technology, vol. 14, no. 11, pp. 966-972. https://doi.org/10.1088/0953-2048/14/11/313

Material for resistive barriers in Bi-2223/Ag tapes. / Kovc, P.; Husek, I.; Pachla, W.; Diantoro, M.; Bonfait, G.; Maria, Jon-Paul; Frhlich, K.; Kopera, L.; Diduszko, R.; Presz, A.

In: Superconductor Science and Technology, Vol. 14, No. 11, 01.11.2001, p. 966-972.

Research output: Contribution to journalArticle

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AU - Kovc, P.

AU - Husek, I.

AU - Pachla, W.

AU - Diantoro, M.

AU - Bonfait, G.

AU - Maria, Jon-Paul

AU - Frhlich, K.

AU - Kopera, L.

AU - Diduszko, R.

AU - Presz, A.

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Y1 - 2001/11/1

N2 - The reactivities of several oxide materials (OM) in direct contact with BSCCO powder has been tested at a temperature of approximately 845°C in air. The OM such as BaZrO3, SrCO3, MgO and ZrO2 showing little or no reactivity with BSCCO were mixed (10 wt%) with a BSCCO precursor powder and used for monocore tapes made by a standard powder-in-tube technique. The microstructure of the BSCCO+OM cores was analysed by SEM and XRD and the transport current properties-critical current, pinning force and resistance up to 16 T-were measured as a function of the magnetic field for various orientations with respect to the ab plane. The OM used influenced the electrical properties of the Bi-2223 phase in different ways. This is because the oxides react with BSCCO during the heat treatment and simultaneously affect the 2212 → 2223 phase transformation as well as the Bi-2223 grain growth and grain connectivity. Submicrometre commercial SrCO3 powder was evaluated as the best material from all those tested, for resistive barriers in Bi-2223/Ag tapes.

AB - The reactivities of several oxide materials (OM) in direct contact with BSCCO powder has been tested at a temperature of approximately 845°C in air. The OM such as BaZrO3, SrCO3, MgO and ZrO2 showing little or no reactivity with BSCCO were mixed (10 wt%) with a BSCCO precursor powder and used for monocore tapes made by a standard powder-in-tube technique. The microstructure of the BSCCO+OM cores was analysed by SEM and XRD and the transport current properties-critical current, pinning force and resistance up to 16 T-were measured as a function of the magnetic field for various orientations with respect to the ab plane. The OM used influenced the electrical properties of the Bi-2223 phase in different ways. This is because the oxides react with BSCCO during the heat treatment and simultaneously affect the 2212 → 2223 phase transformation as well as the Bi-2223 grain growth and grain connectivity. Submicrometre commercial SrCO3 powder was evaluated as the best material from all those tested, for resistive barriers in Bi-2223/Ag tapes.

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