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Helmholtz-Zentrum Dresden-Rossendorf e. V. Bautzner Landstraße 400 01328 Dresden, Germany http://www.fzd.de/
Contact Ms Dr. Christine Bohnet +49 351 2602450
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Helmholtz-Zentrum Dresden-Rossendorf e. V.

Positronen spüren Defekte auf

(PresseBox) (Dresden, )
Die Speicherung von Wasserstoff spielt eine besonders wichtige Rolle in neuen Konzepten für den Antrieb von Kraftfahrzeugen oder die Nutzung der Solarenenergie. Hierzu eignen sich bestimmte Metalle oder Legierungen. Ein Metall hat nie eine perfekte Kristallstruktur, sondern weist oft atomare Fehlstellen auf. Doch aus kleinen Fehlstellen können beim Beladen mit Wasserstoff größere Hohlräume entstehen. Mit Hilfe von Positronen, den Antiteilchen des Elektrons, gelingt es im Forschungszentrum Dresden-Rossendorf (FZD), derartige Defekte in Speichermaterialien aufzuspüren und genauer zu charakterisieren.

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