Superconducting cuprates prepared by the melt quench process and containing excess Y or additives

Bulk YBaCuO samples doped with excess Y or other additives (including rare earths and Nb) and prepared by means of the melt quench process exhibit high magnetization and diamagnetic susceptibility. These can be attributed to the formation of a microstructure which is highly aligned and has few cr...

Full description

Saved in:
Bibliographic Details
Published in:Materials research bulletin 1990, Vol.25 (6), p.765-777
Main Authors: Hojaji, Hamid, Barkatt, Aaron, Hu, Shouxiang, Michael, Karen A., Thorpe, Arthur N., Talmy, Inna G., Haught, Debbie A., Alterescu, Sidney
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic properties and materials
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Bulk YBaCuO samples doped with excess Y or other additives (including rare earths and Nb) and prepared by means of the melt quench process exhibit high magnetization and diamagnetic susceptibility. These can be attributed to the formation of a microstructure which is highly aligned and has few cracks and voids. These characteristics are associated with the presence of a second phase. The importance of this study lies in its applicability to the preparation of polycrystalline superconducting oxides with very high J c values through careful control of their microstructure, in particular through the use of non-stoichiometric formulations and the introduction of additives in conjunction with melt-based processing methods.
ISSN:0025-5408
1873-4227
DOI:10.1016/0025-5408(90)90205-G