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Author Shiming Wu ♦ Glowacki, B.A. ♦ Wei Yao Liang ♦ Xiao-Ming Yang ♦ Weber, H.W.
Sponsorship Council on Superconductivity ♦ Appl. Superconductivity Conference Inc ♦ MIT
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2002
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Critical current density ♦ Microstructure ♦ Powders ♦ Superconducting films ♦ Superconducting transition temperature ♦ Wires ♦ Temperature dependence ♦ Heat treatment ♦ Superconductivity ♦ Bismuth
Abstract Superconducting tapes of (Tl,R)(Ba,Sr)/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/ (R=Bi or Pb) were prepared using a mixture of pre-reacted single phase powder and unreacted precursor of identical or different stoichiometry. The effects of mechanical densification and sintering conditions on critical current (I/sub c/) and microstructure of the tapes were investigated. Compared to the tapes made with entirety unreacted powder or pre-reacted powder, the tapes made with a mixture of the two showed a much improved microstructure, an improved self-field I/sub c/ at 77K, as well as a smaller dependence on sintering conditions and better reproducibility of I/sub c/.
Description Author affiliation :: Interdisciplinary Res. Centre in Superconductivity, Cambridge Univ., UK
ISSN 10518223
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1997-06-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 7
Issue Number 2
Size (in Bytes) 496.96 kB
Page Count 4
Starting Page 1983
Ending Page 1986

Source: IEEE Xplore Digital Library