Zobrazeno 1 - 10
of 194
pro vyhledávání: '"L Kopera"'
Autor:
P. Kováč, I. Hušek, A. Rosová, M. Kulich, J. Kováč, T. Melišek, L. Kopera, M. Balog, P. Krížik
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
Abstract Actually, MgB2 is the lightest superconducting compound. Its connection with lightweight metals like Ti (as barrier) and Al (as outer sheath) would result in a superconducting wire with the minimal mass. However, pure Al is mechanically soft
Externí odkaz:
https://doaj.org/article/28609370602a4265ba0fc7e3bb9e3a4e
Publikováno v:
Cryogenics. :103694
Akademický článek
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Akademický článek
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Publikováno v:
Superconductor Science and Technology. 35:115003
A Rutherford-type MgB2 cable has been fabricated from 12 six-core strands prepared by an internal magnesium diffusion (IMD) process with a resistive CuNi30 outer sheath. The uniformity of individual strands of diameter 0.448 mm prior to and after add
Publikováno v:
Physica C: Superconductivity and its Applications. 560:40-44
No barrier MgB2/SS composite wire was fabricated by the powder-in-tube (PIT) and by the internal magnesium diffusion (IMD) into boron process. Mechanically strong SS sheath keeps the high density of boron powder during could wire drawing, which allow
Autor:
Ahmed Mohamed Hassan Ibrahim, Martin Balog, Peter Švec, L Kopera, M Kulich, Pavol Kováč, Alica Rosová, Lubomir Orovcik, Peter Krizik, I Hušek, Bronislava Szundiova
Publikováno v:
Materials & Design, Vol 157, Iss, Pp 12-23 (2018)
An aluminum material stabilized with a 1.6 vol% of nanometric Al2O3 dispersoids, named HITEMAL, was fabricated by hot extrusion of a fine atomized Al powder. The Al2O3 dispersoids stemmed from a native Al2O3 films on an aluminum powder surface. An ex
Publikováno v:
Superconductor Science and Technology. 35:055001
A wind and react (W&R) coil of inner diameter 53 mm has been made from multi-core MgB2/Nb/CuNi wire manufactured by the internal magnesium diffusion (IMD) process. The W&R coil is wound from non-insulated rectangular wire of 1 mm2 with only 5 µm thi
We present a comparative study of the interfacial reactions for the MgB2 wires with different diffusion barriers (Ta or Ti) and the outer (Al + Al2O3) sheath with variable Al purity and Al2O3 content. The reaction of (Al + Al2O3) with Ta produces non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55d02b999fef2263011cfd08881e5d20
https://doi.org/10.1016/j.jallcom.2019.151665
https://doi.org/10.1016/j.jallcom.2019.151665
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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This paper presents the properties of cables made of thin MgB2 wires with different sheaths manufactured by IMD process. Strong effect of the outer sheath on the J e(B) performance was observed and the best properties were obtained for the strongest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55fecfaa1166c3597654ba7671d7299a
http://hdl.handle.net/10261/214993
http://hdl.handle.net/10261/214993