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Alumina and Yttria Powder and Yttria Coatings Made by Ultrasonic Spray Pyrolysis

Authors

  • Alexandre Santos Abreu,

    Corresponding author
    1. Universität Augsburg, Institut für Physik, Lehrstuhl für Experimentalphysik II, Universitätsstraße 1, 86159 Augsburg (Germany)
    2. OSRAM GmbH, Berliner Allee 65, 86136 Augsburg (Germany)
    • Universität Augsburg, Institut für Physik, Lehrstuhl für Experimentalphysik II, Universitätsstraße 1, 86159 Augsburg (Germany)
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  • Matthias Knoll,

    1. Universität Augsburg, Institut für Physik, Lehrstuhl für Experimentalphysik II, Universitätsstraße 1, 86159 Augsburg (Germany)
    2. OSRAM GmbH, Berliner Allee 65, 86136 Augsburg (Germany)
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  • Judith Moosburger-Will,

    1. Universität Augsburg, Institut für Physik, Lehrstuhl für Experimentalphysik II, Universitätsstraße 1, 86159 Augsburg (Germany)
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  • Armin Konrad,

    1. OSRAM GmbH, Berliner Allee 65, 86136 Augsburg (Germany)
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  • Reinhard Tidecks,

    1. Universität Augsburg, Institut für Physik, Lehrstuhl für Experimentalphysik II, Universitätsstraße 1, 86159 Augsburg (Germany)
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  • Siegfried Horn

    1. Universität Augsburg, Institut für Physik, Lehrstuhl für Experimentalphysik II, Universitätsstraße 1, 86159 Augsburg (Germany)
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  • The authors thank the Bayerische Forschungsstiftung for the financial support within the Bavarian research cooperation for Multi Scale Design of Functional Oxidic Materials (FOROXID).

Abstract

Ultrasonic spray pyrolysis is used to produce metal oxide powders (alumina, yttria, and mixtures of these) from nitrate precursors at temperatures below 500 °C. Moreover, yttria powder coatings on soda-lime glass and fused silica substrates are generated. The as-prepared powders and coatings are examined using scanning electron microscopy (SEM), energy dispersive X-ray (EDX) analysis, X-ray diffraction (XRD), and transmission electron microscopy (TEM).

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