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- W2045476886 endingPage "A67" @default.
- W2045476886 startingPage "A52" @default.
- W2045476886 abstract "High critical current density is essential for most large-scale applications of high-temperature superconductors (HTSs). In addition to the weak link problem, weak flux pinning is a major cause of the rapid decline of with magnetic field at high temperatures. Through intensive research in the past 10 years the weak pinning problem has been partially overcome and has reached a level approaching the requirement for some commercial applications. In this article, a number of techniques by which effective pinning centres can be introduced to improve flux pinning in Bi - (Pb) - Sr - Ca - Cu - O HTSs are reviewed. These include surface pinning through a spiral growth, fine precipitates produced through phase transformation or phase formation - decomposition, inclusions through chemical doping or addition, cascades and columnar defects created by fast-neutron and heavy ion beam irradiation and various defects induced by mechanical deformation. In particular, the results of Bi-2223 formation - decomposition and cold deformation versus hot deformation have a significant implication for HTS wire fabrication. Comparative studies with comprehensive electrical, magnetic and microstructural characterizations have been carried out to assess the effectiveness of these techniques." @default.
- W2045476886 created "2016-06-24" @default.
- W2045476886 creator A5002166335 @default.
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- W2045476886 creator A5028780342 @default.
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- W2045476886 creator A5081846069 @default.
- W2045476886 creator A5086023342 @default.
- W2045476886 date "1997-07-01" @default.
- W2045476886 modified "2023-10-05" @default.
- W2045476886 title "Introduction of pinning centres into Bi - (Pb) - Sr - Ca - Cu - O superconductors" @default.
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