Multi-core MgB2 wire with a Ti barrier and a reinforced Al+Al2O3 sheath

MgB2 is the lightest superconducting compound, which in connection with lightweight metals like Ti, used for a diffusion barrier and Al, used for an outer sheath, results in a superconducting wire with a noticeably reduced mass compared to traditional wires. Multi-core MgB2/Ti/Al+Al2O3 superconducti...

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Bibliographic Details
Published in:Superconductor science & technology 2018-08, Vol.31 (9)
Main Authors: Ková, P, Hušek, I, Kulich, M, Ková, J, Melišek, T, Kopera, L, Pachla, W
Format: Article
Language:English
Subjects:
critical currents
multi-core MgB
reinforced Al+Al
sheath
strain tolerance
Online Access:Get full text
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Summary:MgB2 is the lightest superconducting compound, which in connection with lightweight metals like Ti, used for a diffusion barrier and Al, used for an outer sheath, results in a superconducting wire with a noticeably reduced mass compared to traditional wires. Multi-core MgB2/Ti/Al+Al2O3 superconducting wire was manufactured by internal magnesium diffusion into a boron process. Basic electrical and mechanical properties of the multi-core wire were studied at low temperatures and compared with a single-core wire and also with GlidCop sheathed multi-core wires. It was found that the lightweight multi-core MgB2 wire exhibited a high critical current density and also a good tolerance to mechanical stresses. This predetermines the potential use of such a superconducting wire for applications where a reduction of the mass of the system is required.
ISSN:0953-2048
1361-6668
DOI:10.1088/1361-6668/aad30d