Browsing by Author "Dohrmann, R."

Browsing by Author "Dohrmann, R."

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  • Clays and Clay Minerals, Vol. 56, No. 2, 272–282, 2008. 
    Ufer, K.; Stanjek, H.; Roth, G.; Dohrmann, R.; Kleeberg, R.; Kaufhold, S. (The Clay Minerals SocietyThe Clay Minerals Society, 2008)
    Thirty six bentonite samples from 16 different locations were examined in order to demonstrate the applicability of a new Rietveld description approach for quantitative phase analysis. X-ray diffraction patterns of the ...
  • Clays and Clay Minerals, Vol. 57, No. 3, 338–352, 2009. 
    Dohrmann, R.; Kaufhold, S. (The Clay Minerals Society, 2009)
    The cation exchange capacity (CEC) is one of the most important properties of clays in terms of their performance in both natural and technical processes. For decades, common methods for determining exchangeable cations ...
  • Clays and Clay Minerals, Vol. 57, No. 6, 686–694, 2009. 
    Dohrmann, R.; Ruping, K.B.; Kleber, M.; Ufer, K.; Jahn, R. (The Clay Minerals Society, 2009)
    In X-ray diffraction (XRD) analysis, preparation of oriented clay specimens enhances their 00l reflections by arranging basal surfaces parallel to the specimen surface. In one-dimensional modeling of XRD intensities, degree ...
  • Clays and Clay Minerals, Vol. 58, No. 1, 37–43, 2010. 
    Kaufhold, S.; Dohrmann, R.; Klinkenberg, M. (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    The present study compares the water-vapor adsorption capacity of bentonites (natural cation population) with the Enslin-Neff method. Water-vapor adsorption at 50% r.h. (relative humidity) or 70% r.h. is known to depend ...