Journal ArticleDOI
Trapped magnetic fields larger than 14 T in bulk YBa2Cu3O7−x
TLDR
In this article, high trapped fields were found in zinc-doped, bulk melt-textured YBa2Cu3O7−x (YBCO) material showing a pronounced peak effect in the field dependence of the critical current density.Abstract:
High trapped fields were found in zinc-doped, bulk melt-textured YBa2Cu3O7−x (YBCO) material showing a pronounced peak effect in the field dependence of the critical current density Trapped fields up to 11 T were found at 77 K at the surface of a YBCO disk (diameter 26 mm, height 12 mm) Very high trapped fields up to 1435 T were achieved at 225 K for a YBCO disk pair (diameter 26 mm, height 24 mm) by the addition of silver and using a bandage made of stainless steel The pinning forces and trapped fields obtained in bulk YBCO material are compared with results reported for melt-processed NdBa2Cu3O7−x and SmBa2Cu3O7−xread more
Citations
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Journal ArticleDOI
High-temperature superconductor bulk magnets that can trap magnetic fields of over 17 tesla at 29 K
Masaru Tomita,Masato Murakami +1 more
TL;DR: A post-fabrication treatment is presented that improves the mechanical properties as well as thermal conductivity of a bulk Y-Ba-Cu-O magnet, thereby increasing its field-trapping capacity and thermal stability and internal mechanical strength.
Journal ArticleDOI
A trapped field of 17.6 T in melt-processed, bulk Gd-Ba-Cu-O reinforced with shrink-fit steel
John H. Durrell,Anthony R. Dennis,Jan Jaroszynski,Mark D. Ainslie,Kysen G Palmer,Yunhua Shi,A.M. Campbell,John R. Hull,M. Strasik,Eric E. Hellstrom,David A. Cardwell +10 more
TL;DR: In this paper, the authors reported a trapped field of 17.6 T in a stack of two silver-doped GdBCO superconducting bulk samples, each 25 mm in diameter, fabricated by top-seeded melt growth and reinforced with shrink-fit stainless steel.
Journal ArticleDOI
Recent advances in iron-based superconductors toward applications
TL;DR: Recently, the discovery of a high critical temperature (T c ) iron-based superconductor (IBSC) was accepted with surprise in the condensed matter community and rekindled extensive study globally as mentioned in this paper.
Journal ArticleDOI
Applications of bulk high-temperature Superconductors
J.R. Hull,Masato Murakami +1 more
TL;DR: Improvements in HTS properties, such as flux pinning, mechanical strength, and the ability to grow large grains, have greatly improved the economics of applications that use bulk HTS.
Journal ArticleDOI
Superconducting bulk magnets: Very high trapped fields and cracking
TL;DR: In this article, the authors reported improved trapped fields for bulk melt-textured YBa2Cu3O7−δ (YBCO) material in the temperature range between 20 and 50 K.
References
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Journal ArticleDOI
Damage caused by magnetic pressure at high trapped field in quasi-permanent magnets composed of melt-textured YBaCuO superconductor
TL;DR: In this article, a mini-magnet fabricated from four melt-textured YBa2Cu3O7 - delta (MT-YBCO) discs activated at 49 K using an applied field of 14 T was observed to crack.
Journal ArticleDOI
Analysis of pinning in superconductors
Journal ArticleDOI
Flux-pinning-induced stress and strain in superconductors: Case of a long circular cylinder
TL;DR: The irreversible behavior of the flux-pinning-induced stress and strain in a long circular cylindrical superconductor placed in a parallel magnetic field is analyzed in this article.
Journal ArticleDOI
Modified melt texturing process for YBCO based on the polythermic section YO1.5“Ba0.4Cu0.6O” in the YBaCuO phase diagram at 0.21 bar oxygen pressure
G. Krabbes,P. Schätzle,Wolfgang Bieger,Ulrich Wiesner,G Stöver,M. Wu,T. Strasser,A. Köhler,Doris Litzkendorf,K. Fischer,P. Görnert +10 more
TL;DR: Based on phase diagram considerations, it is shown that the process window for stable growth conditions can be considerably increased as discussed by the authors, and a lower process temperature (T a =960°C to 985°C) is possible.
Journal ArticleDOI
Enhancements in Current Density and Mechanical Properties of Y-Ba-Cu-O/Ag Composites
Dominic F. Lee,Kamel Salama +1 more
TL;DR: In this article, a liquid-phase processing method was developed to manufacture bulk YBa2Cu3Ox/Ag superconducting composites with large current carrying capacity and enhanced mechanical properties.
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High-temperature superconductor bulk magnets that can trap magnetic fields of over 17 tesla at 29 K
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