Guinier-Preston zones in Al-rich Al-Cu and Al-Ag single crystals

B. Schönfeld, A. Malik, G. Kostorz, W. Bührer, J.S. Pedersen

    Research output: Contribution to journalJournal articleResearch


    Guinier-Preston zones in <(Al)under bar>-Ag and <(Al)under bar>-Cu were investigated by diffuse X-ray and neutron scattering. In Al-3 at% Ag no differences are found between zones formed above and below 500 K (epsilon- and eta-zones, respectively). Their average Ag concentration is (80 +/- 10) at%, and the Ag concentration decreases by 10-15% from shell to core of the zones. In Al-1.75 at% Cu, Guinier-Preston I zones are dominantly monolayers with a Cu fraction of (84 +/- 2) at%.
    Original languageEnglish
    JournalPhysica B: Condensed Matter
    Pages (from-to)983-985
    Publication statusPublished - 1997

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