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MgB₂ superconducting films prepared by the aerosol deposition method


Glosse, Philipp ; Denneler, Stefan ; Kauffmann-Weiss, Sandra ; Oomen, Marijn ; Moos, Ralf:
MgB₂ superconducting films prepared by the aerosol deposition method.
Veranstaltung: 6th International Congress on Ceramics (ICC6) , 21.-25.08.2016 , Dresden, Deutschland.
(Veranstaltungsbeitrag: Kongress/Konferenz/Symposium/Tagung , Vortrag )

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Offizieller ProjekttitelProjekt-ID

Projektfinanzierung: Bundesministerium für Bildung und Forschung


Magnesium diboride (MgB2) is a promising superconductor with working temperatures below 39 K. Several techniques are known to prepare MgB2 films, filaments or wires. The powder-in-tube technique is used commercially to produce multifilament conductors from in situ or ex situ prepared MgB2 powders. Physical vapor deposition is appropriate to coat substrates with MgB2 thin film. The Aerosol Deposition Method (ADM) is a spray-coating technique at room temperature used to produce films of brittle materials, mostly ceramics like Al2O3. Due to its ceramic-like mechanical properties, MgB2 can be deposited with this technique as well. For the ADM, fine powders with a particle size range between 0.1 to 10 μm are used as starting powders. A defined aerosol of these powders and a carrier gas is accelerated into a vacuum chamber. As soon as the particles collide with the substrate, they crack and a fine-grained film forms. Thus ADM thick films are mostly dense nanocrystalline coatings, where various materials can work as a substrate. In this study MgB2 films are formed by the ADM on substrates like glass, Al2O3, and nickel base alloys. Processing parameters and powder treatment strongly affect film thicknesses and the morphology of the as-deposited films. The film thickness of the first samples was about 5 μm. The influence of aerosol parameters like carrier gas type, gas flow and aerosol concentration is evaluated based on the quality of the deposited MgB2.

Weitere Angaben

Publikationsform: Veranstaltungsbeitrag (Vortrag)
Begutachteter Beitrag: Ja
Institutionen der Universität: Fakultäten > Fakultät für Ingenieurwissenschaften
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Funktionsmaterialien > Lehrstuhl Funktionsmaterialien - Univ.-Prof. Dr.-Ing. Ralf Moos
Profilfelder > Advanced Fields > Neue Materialien
Forschungseinrichtungen > Forschungszentren > Bayreuther Materialzentrum - BayMAT
Forschungseinrichtungen > Forschungsstellen > ZET - Zentrum für Energietechnik
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Funktionsmaterialien
Profilfelder > Advanced Fields
Forschungseinrichtungen > Forschungszentren
Forschungseinrichtungen > Forschungsstellen
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Eingestellt am: 05 Sep 2016 07:47
Letzte Änderung: 05 Sep 2016 08:43
URI: https://eref.uni-bayreuth.de/id/eprint/34615