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Role of superconducting materials in the endeavor to stop climate change and reach sustainable development
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SYSNO ASEP 0570386 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Role of superconducting materials in the endeavor to stop climate change and reach sustainable development Author(s) Muralidhar, M. (JP)
Srikanth, A.S. (JP)
Pinmangkorn, S. (JP)
Santosh, M. (JP)
Jirsa, Miloš (FZU-D) RID, ORCIDNumber of authors 5 Source Title Journal of Superconductivity and Novel Magnetism. - : Springer - ISSN 1557-1939
Roč. 36, č. 3 (2023), s. 803-812Number of pages 10 s. Language eng - English Country US - United States Keywords global warming ; superconducting technology ; GdYEr-123 ; MgB2 ; critical current density Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000925704200001 EID SCOPUS 85147367775 DOI 10.1007/s10948-023-06515-6 Annotation Progress in the mass production of newly developed bulk (Gd0.33Y0.13Er0.53)Ba2Cu3Oy “(Gd,Y,Er)123” and MgB2 systems is presented. Two batches of (Gd,Y,Er)123 pellets of 20 mm diameter and 7 mm thick were prepared in air by an infiltration growth “IG” process. Trapped field distribution profiles of fully grown bulk samples clearly showed that all samples were single-grain and the trapped field values were more than 0.5 T at 77 K, 1.3 mm above top surface. The best bulk exhibited the trapped field value of 0.63 T at 77 K. Ultra-sonication technique was employed for refining precursors of both (Gd,Y,Er)211 and boron. TEM studies revealed that boron powder subjected to ultrasonication was refined up to nanoscale. The micron-sized particles were reduced to nanoscale, which led to improvement of critical current by up to 36% in bulk MgB2 at 20 K and self-field. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0342711
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