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Geozentrum Nordbayern EN
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  1. Friedrich-Alexander-Universität
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  1. Friedrich-Alexander-Universität
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  3. Department of Geography and Geosciences

Geozentrum Nordbayern EN

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Powder Characterization

In page navigation: Applied Mineralogy
  • Staff
    • Prof. Dr. Matthias Göbbels
    • Prof. Dr. Friedlinde Götz-Neunhoeffer
    • Prof. Dr. Jürgen Neubauer
    • Dr. rer. nat. Katrin Hurle
    • Dr. rer. nat. Daniel Jansen
    • M. Sc. Franz Becker
    • M.Sc. Nicholas Fobbe
    • M.Sc. Julian Goergens
    • M.Sc. Cordula Jakob
    • M. Sc. Irina Kirchberger
    • M.Sc. Lisa Klemenz
    • M.Sc. Andreas Köhler
    • M.Sc. Anika Mielkau
    • M. Sc. Jakob Schreiber
    • M. Sc. Pauline Rost
    • M.Sc. Karla Späth
    • M.Sc. Daniel Wagner
    • Dr. rer. nat. Julian Johannes Wolf
    • Dipl.-Ing. (FH) Christian Abe
    • M.Sc. Sophia Villmow
    • Bettina Engl
    • Cornelia Geisler, B.A.
    • Jocelyne Grosshauser
    • Kerstin Kreß
    • Bernd Schleifer
    • Elisabeth Klein
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    • Dr. rer. nat. Florian Hüller
    • Dr. rer. nat. Christoph Naber
    • Dr. rer. nat. Jürgen Schreiner
    • Dr. rer. nat. Tanja Manninger
    • Dr. rer. nat. Jörg Nehring
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    • Powder Characterization
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Powder Characterization

Powder Characterization

The Malvern Mastersizer 3000 in our institute uses laser diffraction technique to measure particle size distributions in the range of 0.01 µm up to 3.5 mm. In the case of laser diffraction systems, the particle size reported is the diameter of a sphere that yields an equivalent light scattering pattern as the particle being measured.

Malvern Mastersizer 3000 with two different wet sample dispersion units

Specifications:

  • Dispersions type: Wet
  • Analysis: Mie and Fraunhofer scattering
  • Red light Source: Max. 4mW He-Ne, 632.8nm
  • Blue light Source: Max. 10mW LED, 470nm
  • 120 ml to 1000 ml dispersant volume
  • 40 W in-line sonication probe

 

BET method

With the BET device Gemini 2360 (from Micromeritics) the specific surface area (SSA) of solid materials can be determined. The method is named after three scientists, Brunauer, Emmett and Teller. During the measurement the SSA is calculated based on the volume of gas molecules (usually nitrogen) which adsorb on available surface area. The peculiar feature of this methods is that even micro cracks and pores can be reached. The SSA allows to draw conclusions about the degree of crystallinity of minerals or about the reactivity of cement, for example.

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