Influence of some metallic additives on the flux trapping ability of high temperature superconducting ceramics

Andras Szalay, Daniel Horvath, I. Vajda, Athanasios G. Mamalis, Christelle Harnois

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

By applying magnetic fields on high temperature superconducting (HTS) bulks, superconducting permanent magnets (SPMs) can be produced. Two relevant factors influencing the properties of the SPMs have been investigated:1.The external magnetic field to be trapped by HTS bulks-that depends on the mode of the magnetization (static or pulse form).2.The flux trapping ability of the HTS bulks (that is, which percentage of the external magnetic field can be trapped by the HTS materials)-that depends on and can be controlled by the composition and the preparation technique of the HTS bulks. YBaCuO base single domain bulks with CeSn and Ce + Ag additives were prepared aiming at the analyse of the influence of these additives on the flux trapping ability of Y1Ba2Cu3O7-x (Y123) superconducting bulks. In the reported stage of our long term R&D work we focused on the pulse magnetization of these superconducting bulks. A pulse generator equipped with set of magnetizing coils have been designed and built for supplying various pulse forms for magnetizing the bulks. Using this pulse magnetization equipment, a magnetic flux density as high as 4.0 T could be created by discharging a capacitor bank through ignitron switches into the magnetizing coil. The equipment is capable to generate variable pulse shapes. The YBCO bulk samples were magnetized in zero field cooled (ZFC mode). For cooling the samples, liquid nitrogen was used. The pulse magnetized bulks were measured and tested by field mapping.

Original languageEnglish
Pages (from-to)36-39
Number of pages4
JournalJournal of Materials Processing Technology
Volume181
Issue number1-3 SPEC. ISS.
DOIs
Publication statusPublished - Jan 1 2007

Fingerprint

Flux pinning
Magnetization
Superconducting magnets
Magnetic fields
Permanent magnets
Temperature
Pulse generators
Liquid nitrogen
Magnetic flux
Superconducting materials
Capacitors
Switches
Cooling
Chemical analysis

Keywords

  • Oxide superconductors
  • Pulse magnetization
  • Superconducting permanent magnets

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Influence of some metallic additives on the flux trapping ability of high temperature superconducting ceramics. / Szalay, Andras; Horvath, Daniel; Vajda, I.; Mamalis, Athanasios G.; Harnois, Christelle.

In: Journal of Materials Processing Technology, Vol. 181, No. 1-3 SPEC. ISS., 01.01.2007, p. 36-39.

Research output: Contribution to journalArticle

Szalay, Andras ; Horvath, Daniel ; Vajda, I. ; Mamalis, Athanasios G. ; Harnois, Christelle. / Influence of some metallic additives on the flux trapping ability of high temperature superconducting ceramics. In: Journal of Materials Processing Technology. 2007 ; Vol. 181, No. 1-3 SPEC. ISS. pp. 36-39.
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