Discretization of the Water Uptake Process of Na-Montmorillonite Undergoing Atmospheric Stress: XRD Modeling Approach

<div>Evolution of the d001 (a), FWHM (b), and ξ parameters (c) versus %RH in the case of the unstressed sample along the sorption and desorption processes. The ξ parameter, which accounts for the departure from rationality of the 00l reflection series, is calculated as the standard deviation of the l × d00l values calculated for the Xi measurable reflections (Xi = 3 in this case) over the 2θ Cu-Kα angular range (degree). Blue and yellow circles indicate interstratified hydration character (I) and homogeneous hydration character (H).</div>

Advances in Materials Science and Engineering

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Figure 2

Figure 2: Discretization of the Water Uptake Process of Na-Montmorillonite Undergoing Atmospheric Stress: XRD Modeling Approach 