Ultra-lightweight superconducting wire based on Mg, B, Ti and Al

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 metal to be used in drawn or rolled composite wir...

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Autores principales:	P. Kováč, I. Hušek, A. Rosová, M. Kulich, J. Kováč, T. Melišek, L. Kopera, M. Balog, P. Krížik
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/28609370602a4265ba0fc7e3bb9e3a4e
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spelling	oai:doaj.org-article:28609370602a4265ba0fc7e3bb9e3a4e2021-12-02T15:07:50ZUltra-lightweight superconducting wire based on Mg, B, Ti and Al10.1038/s41598-018-29354-12045-2322https://doaj.org/article/28609370602a4265ba0fc7e3bb9e3a4e2018-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-29354-1https://doaj.org/toc/2045-2322Abstract 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 metal to be used in drawn or rolled composite wires, especially if applied for the outer sheath, where it cannot provide the required densification of the boron powder inside. This study reports on a lightweight MgB2 wire sheathed with aluminum stabilized by nano-sized γ-Al2O3 particles (named HITEMAL) and protected against the reaction with magnesium by Ti diffusion barrier. Electrical and mechanical properties of single-core MgB2/Ti/HITEMAL wire made by internal magnesium diffusion (IMD) into boron were studied at low temperatures. It was found that the ultra-lightweight MgB2 wire exhibited high critical current densities and also tolerances to mechanical stress. This predetermines the potential use of such lightweight superconducting wires for aviation and space applications, and for powerful offshore wind generators, where reducing the mass of the system is required.P. KováčI. HušekA. RosováM. KulichJ. KováčT. MelišekL. KoperaM. BalogP. KrížikNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q P. Kováč I. Hušek A. Rosová M. Kulich J. Kováč T. Melišek L. Kopera M. Balog P. Krížik Ultra-lightweight superconducting wire based on Mg, B, Ti and Al
description	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 metal to be used in drawn or rolled composite wires, especially if applied for the outer sheath, where it cannot provide the required densification of the boron powder inside. This study reports on a lightweight MgB2 wire sheathed with aluminum stabilized by nano-sized γ-Al2O3 particles (named HITEMAL) and protected against the reaction with magnesium by Ti diffusion barrier. Electrical and mechanical properties of single-core MgB2/Ti/HITEMAL wire made by internal magnesium diffusion (IMD) into boron were studied at low temperatures. It was found that the ultra-lightweight MgB2 wire exhibited high critical current densities and also tolerances to mechanical stress. This predetermines the potential use of such lightweight superconducting wires for aviation and space applications, and for powerful offshore wind generators, where reducing the mass of the system is required.
format	article
author	P. Kováč I. Hušek A. Rosová M. Kulich J. Kováč T. Melišek L. Kopera M. Balog P. Krížik
author_facet	P. Kováč I. Hušek A. Rosová M. Kulich J. Kováč T. Melišek L. Kopera M. Balog P. Krížik
author_sort	P. Kováč
title	Ultra-lightweight superconducting wire based on Mg, B, Ti and Al
title_short	Ultra-lightweight superconducting wire based on Mg, B, Ti and Al
title_full	Ultra-lightweight superconducting wire based on Mg, B, Ti and Al
title_fullStr	Ultra-lightweight superconducting wire based on Mg, B, Ti and Al
title_full_unstemmed	Ultra-lightweight superconducting wire based on Mg, B, Ti and Al
title_sort	ultra-lightweight superconducting wire based on mg, b, ti and al
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/28609370602a4265ba0fc7e3bb9e3a4e
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Ultra-lightweight superconducting wire based on Mg, B, Ti and Al

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