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Figure 1
(a) 1 s EDD patterns, spaced 7 s apart in time, showing the rapid change in layer-spacing on addition of KCl to polymer-treated Swy-1 montmorillonite clay suspensions. (b) Variation in layer-spacing in 10 µm steps down a ∼150 µm-thick montmorillonite film contained within an osmotic cell; the larger 1/d between positions 400–600 indicates a decreased basal spacing (equivalent to one water layer) at each side corresponding to the limits of ingress of the KCl during the measurement.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 7| Part 3| May 2000| Pages 167-177
doi:10.1107/S0909049500003137
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