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Title: Method and composition for improving flux pinning and critical current in superconductors

Superconducting materials and methods of forming superconducting materials are disclosed. Highly oxidized superconductors are heated at a relatively high temperature so as to release oxygen, which migrates out of the material, and form a non-superconducting phase which does not diffuse out of grains of the material. The material is then reoxidized at a lower temperature, leaving the non-superconducting inclusions inside a superconducting phase. The non-superconducting inclusions act as pinning centers in the superconductor, increasing the critical current thereof. 14 figs.
Inventors:
Issue Date:
OSTI Identifier:
87725
Assignee:
Univ. of California, Oakland, CA (United States) PTO; SCA: 665411; PA: EDB-95:121074; SN: 95001431098
Patent Number(s):
US 5,430,008/A/
Application Number:
PAN: 7-783,730
Contract Number:
AC03-76SF00098
Resource Relation:
Other Information: PBD: 4 Jul 1995
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; SUPERCONDUCTORS; FABRICATION; MAGNETIC FLUX; CRITICAL CURRENT; SUPERCONDUCTIVITY