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One-Step Synthesis and Densification of Bulk YBa₂Cu₄O₈/Ni Composite Superconductors

From National Research Council Canada

Alternative titleOne-Step Synthesis and Densification of Bulk YBa2Cu4O8/Ni Composite Superconductors
DOIResolve DOI: https://doi.org/10.1557/PROC-169-369
AuthorSearch for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
ConferenceSymposium M-High Temperature Superconductors; Fundamental Properties and Novel Materials Processing, November 29 - December 2, 1989, Boston, Massachusetts
Abstract
The fabrication of bulk YBa₂Cu₃0₇₋ₓ/metal composite superconductors is not easy because of the oxygen-temperature dependence of the YBa₂Cu₃0₇₋ₓ phase (the socalled 123 phase). A loss of oxygen occurs during consolidation of these composites at high temperature and it is almost impossible to diffuse oxygen through the metallic envelope into the densified compound to restore the required oxygen content for superconductivity above 77K. To overcome this drawback, a one-step synthesis and consolidation process was used to produce YBa₂Cu₄O₈/ nickel composites. The superconductive 124 phase has a more stable oxygen stoichiometry [1] and is synthesized under a high oxygen pressure at high temperature.
Publication date
PublisherCambridge University Press
In
  • MRS Proceedings 169, 369.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 30344
NRC-IGM89TC-308-835-G
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Record identifierea5654b6-ae51-427e-8044-dd3dc5bf12a1
Record created2020-04-14
Record modified2020-05-08
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