Superconductivity in Multi-Phase Mg-B-O Compounds
| Autor: | Jacques G. Noudem, Artem Kozyrev, V. N. Tkach, Roman Kuznietsov, Tetiana Basyuk, Christa Shmidt, Jan Dellith, Xavier Chaud, Alexandr Borimskiy, Michael Eisterer, Valeriy Kovylaev, Michael Tomsic, Vladimir Sokolovsky, Tatiana Prikhna, Doris Litzkendorf, Myroslav Karpets, Viktor Moshchil, Harald W. Weber, F. Karau, Wolfgang Gawalek, U. Dittrich |
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| Přispěvatelé: | Laboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU), Centre National de la Recherche Scientifique (CNRS), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire national des champs magnétiques intenses - Grenoble (LNCMI-G), Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Institute of Photonic Technology (IPHT), IPHT Jena: Institute of Photonic Technology, Université Joseph Fourier - Grenoble 1 (UJF)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2012 |
| Předmět: |
010302 applied physics
Superconductivity higher magnesium borides Nanostructure nanostructure Multi phase Analytical chemistry Magnesium diboride chemistry.chemical_element pinning force Physics and Astronomy(all) 01 natural sciences Oxygen chemistry.chemical_compound chemistry [PHYS.HIST]Physics [physics]/Physics archives 0103 physical sciences 010306 general physics Boron Current density Pinning force critical current density ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Physics Procedia Physics Procedia, Elsevier, 2012, 36, pp.475-478. ⟨10.1016/j.phpro.2012.06.220⟩ |
| ISSN: | 1875-3892 |
| DOI: | 10.1016/j.phpro.2012.06.220 |
| Popis: | Structures of MgB2-based materials manufactured under pressure (up to 2 GPa) by different methods having high superconducting performance and connectivity are multiphase and contain different Mg-B-O compounds. Some oxygen can be incorporated into MgB2 and boron into MgO structures, MgBx (X=4-20) inclusions contain practically no oxygen. Regulating manufacturing temperature, pressure, introducing additions one can influence oxygen and boron distribution in the materials and thus, affect the formation, amount and sizes of Mg-B-O and MgBx inclusions and changing type of pinning, pinning force and so affect critical current density j c. The boron concentration increase in initial Mg and B mixture allows obtaining sample containing 88.5 wt% of MgB12 with TC of 37.4 K (estimated magnetically). |
| Databáze: | OpenAIRE |
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