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Book
High - Tc Superconductors for Magnet and Energy Technology Book Series
Springer Tracts in Modern Physics
Publisher
Springer Berlin / Heidelberg
ISSN
1615-0430
Subject
Physics and Astronomy
Volume
Volume 171/2001
Copyright
2001
Online Date
Tuesday, July 01, 2003 Disable Highlighting
13 Chapters Access to all content
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2. High -Tc Superconductors : Limitations and Applications Author
Beate R. Lehndorff
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PDF (157 kb)
3. Fundamentals of Material Processing Author
Beate R. Lehndorff
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4. Physical Properties of High -Tc Superconductors Author
Beate R. Lehndorff
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PDF (320 kb)
5. Conductor Preparation and Phase Evolution Author
Beate R. Lehndorff
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PDF (135 kb)
6. Characterization of Conductors and Bulk HTSCs Author
Beate R. Lehndorff
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7. Preparation of BSCCO Conductors Author
Beate R. Lehndorff
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PDF (678 kb)
8. Overpressure Processing of Bi-2212 Conductors Author
Beate R. Lehndorff
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PDF (419 kb)
9. Processing of Bi-2223/Ag Tapes at Reduced Final Temperature Author
Beate R. Lehndorff
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10. Preliminary Results on YBCO-Coated Conductors Author
Beate R. Lehndorff
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11. Magnetotransport and Vortex Dynamics Author
Beate R. Lehndorff
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12. Superconducting Magnetic Levitation Author
Beate R. Lehndorff
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13. Remanent Flux Distribution and Critical Current Density Author
Beate R. Lehndorff
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14. Concluding Remarks Author
Beate R. Lehndorff
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2. High-Tc Superconductors: Limitations and Applications
When high-temperature superconductivity was found by Bednorz and M¨ uller in 1986 [15] many research activities were started all over the world. This was not only because of the desire for even higher critical temperatures Tc . But the possibility of cooling with liquid nitrogen instead of liquid helium made the application of superconductivity in energy technology much more probable and economically feasible. The great expectations, however, had soon to be scaled down. Despite having high transition temperatures of e.g. 94 K in YBa2 Cu3 O7−δ or even 110 K in (Pb,Bi)2 Sr2 Ca2 Cu3 O10 , the new ceramic superconductors could not carry very high critical currents Ic . Thus technical applications again turned out not to be around the corner and big effort was put into the understanding and elimination of critical-current limitations. Yet there are some important properties of high-temperature superconductors (HTSCs) besides the high transition temperature. In principle they have a very high upper critical field (up to 100 T for the bismuth superconductors) and could thus carry high currents at much higher fields than the conventiona