The effect of high-pressure synthesis on flux pinning in MgB2-based superconductors
| Autor: | Viktor Moshchil, Artem Kozyrev, Roman Kuznietsov, Michael Tomsic, Doris Litzkendorf, Alexandr Borimskiy, Michael Eisterer, Christa Shmidt, Vladimir Sokolovsky, Wolfgang Gawalek, V. N. Tkach, Harald W. Weber, Myroslav Karpets, Jan Dellith, F. Karau, Jacques G. Noudem, Valeriy Kovylaev, U. Dittrich, Mykola Monastyrov, Tatiana Prikhna |
|---|---|
| Přispěvatelé: | Laboratoire de cristallographie et sciences des matériaux (CRISMAT), École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC), Leibniz Institute of Photonic Technology (IPHT), Leibniz Association, National Academy of Sciences of Ukraine (NASU), Vienna University of Technology (TU Wien), Ben-Gurion University of the Negev (BGU), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), H.C. Starck, Hyper Tech Research, Inc |
| Rok vydání: | 2012 |
| Předmět: |
Flux pinning
Materials science Zener pinning Energy Engineering and Power Technology Pinning force 01 natural sciences [SPI.MAT]Engineering Sciences [physics]/Materials [SPI]Engineering Sciences [physics] chemistry.chemical_compound Pinning centers 0103 physical sciences Magnesium diboride Electrical and Electronic Engineering 010306 general physics [PHYS]Physics [physics] 010302 applied physics Superconductivity Condensed matter physics [SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment Critical current density Condensed Matter Physics Electronic Optical and Magnetic Materials Magnetic field Volume (thermodynamics) chemistry Higher magnesium borides [SDE]Environmental Sciences Grain boundary |
| Zdroj: | Physica C: Superconductivity Physica C: Superconductivity, North-Holland, 2012, 479, pp.111-114. ⟨10.1016/j.physc.2012.01.004⟩ Physica C: Superconductivity, 2012, 479, pp.111-114. ⟨10.1016/j.physc.2012.01.004⟩ |
| ISSN: | 0921-4534 |
| Popis: | International audience; Increasing the pressure during manufacturing MgB2 enhances the volume pinning force and moves the position of the maximum to higher magnetic fields. A similar shift was observed when Ti or SiC was added and the maximum of the volume pinning force was found at higher fields in in situ synthesized materials than in ex situ sintered samples. We attribute the observed changes to Mg–B–O oxygen-enriched regions and grains of higher magnesium borides in the MgB2 matrix. High-temperature processed materials demonstrated mainly point or mixed pinning while grain boundary pinning dominated after low-temperature synthesis. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect