Superconductive aluminum/YBa2Cu3Ox composites stabilized by oxygen/fluorine donors

In-Gann Chen, S. Sen, D. M. Stefanescu

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A fabrication technique for producing bulk and irregular-shaped aluminum/high Tc superconductor composites by traditional powder metallurgy method is reported. During the course of fabrication, the oxygen stoichiometry can be maintained at the desired level in order to retain superconductivity by addition of certain metal oxides or metal carbonates with low oxidation tendency, e.g., Ag2O, Ag2CO3, and CdO. Moreover, replacement of oxygen with fluorine is also possible by addition of certain unstable fluorides like AgF. Superconductivity measurements of Al/YBa2Cu3Ox random composites with additions of different oxygen or fluorine donors show a similiar or improved Tc in comparison to the pure 123 compound. The concept of oxygen/fluorine donor can also be used in other fabrication techniques of metal/123 composites to stabilize the oxygen/fluorine stoichiometry.

Original languageEnglish
Pages (from-to)1355-1357
Number of pages3
JournalApplied Physics Letters
Volume52
Issue number16
DOIs
Publication statusPublished - 1988 Dec 1

Fingerprint

fluorine
aluminum
composite materials
oxygen
fabrication
stoichiometry
superconductivity
powder metallurgy
metals
metal oxides
fluorides
carbonates
tendencies
oxidation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Chen, In-Gann ; Sen, S. ; Stefanescu, D. M. / Superconductive aluminum/YBa2Cu3Ox composites stabilized by oxygen/fluorine donors. In: Applied Physics Letters. 1988 ; Vol. 52, No. 16. pp. 1355-1357.
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Superconductive aluminum/YBa2Cu3Ox composites stabilized by oxygen/fluorine donors. / Chen, In-Gann; Sen, S.; Stefanescu, D. M.

In: Applied Physics Letters, Vol. 52, No. 16, 01.12.1988, p. 1355-1357.

Research output: Contribution to journalArticle

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