CUED Publications database

Magneto-Optical Imaging of Superconductors for Liquid Hydrogen Applications

Mikheenko, P and Yurchenko, VV and Cardwell, DA and Shi, YH and Johansen, TH (2012) Magneto-Optical Imaging of Superconductors for Liquid Hydrogen Applications. Journal of Superconductivity and Novel Magnetism. pp. 1-4. ISSN 1557-1939

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Restricted deposits of fossil fuels and ecological problems created by their extensive use require a transition to renewable energy resources and clean fuel free from emissions of CO2. This fuel is likely to be liquid hydrogen. An important feature of liquid hydrogen is that it allows wide use of superconductivity. Superconductors provide compactness, high efficiency, savings in energy and a range of new applications not possible with other materials. The benefits of superconductivity justify use of low temperatures and facilitate development of fossil-free energy economy. The widespread use of superconductors requires a simple and reliable technique to monitor their properties. Magneto-optical imaging (MOI) is currently the only direct technique allowing visualization of the superconducting properties of materials. We report the application of this technique to key superconducting materials suitable for the hydrogen economy: MgB2 and high temperature superconductors (HTS) in bulk and thin-film form. The study shows that the MOI technique is well suited to the study of these materials. It demonstrates the advantage of HTS at liquid hydrogen temperatures and emphasizes the benefits of MgB2, in particular. © 2012 Springer Science+Business Media New York.

Item Type: Article
Divisions: Div C > Materials Engineering
Depositing User: Unnamed user with email
Date Deposited: 17 Jul 2017 19:31
Last Modified: 09 Sep 2021 02:02
DOI: 10.1007/s10948-012-2033-z