DEVELOPMENT OF A MELT PROCESSING ROUTE FOR THE FABRICATION OF TL-1223COILS

Authors
MOORE JC HYLAND D FOX S NAYLOR MJ WIVELL S GROVENOR CRM
Citation
Jc. Moore et al., DEVELOPMENT OF A MELT PROCESSING ROUTE FOR THE FABRICATION OF TL-1223COILS, IEEE transactions on applied superconductivity, 7(2), 1997, pp. 1961-1964
Citations number
10
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on applied superconductivity → ACNP
ISSN journal
10518223
Volume
7
Issue
2
Year of publication
1997
Part
2
Pages
1961 - 1964
Database
ISI
SICI code
1051-8223(1997)7:2<1961:DOAMPR>2.0.ZU;2-4
Abstract
Tl-1223 tapes with densities, (E-J(c)) values, of 2500Acm(-2) can be r outinely fabricated but the magnetic field properties are poor due to weak link effects. We have developed a partial melt processing route w hich results in increased grain growth with greater potential for achi eving grain alignment. We have investigated the effect of Tl-1223 phas e composition on the melt process and found that Bi substitutions lead to an increased grain size in tapes made using unreacted powder but a decrease in grain growth in tapes made with reacted powder.