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Transformation Mechanisms and Interstratification in Conversion of Smectite to Kaolinite: An HRTEM Study
HRTEM Interstratification Kaolinite Smectite Transformation Mechanisms
2011/12/8
Abstract: The transformation of smectite into kaolinite and kaolinite-smectite interstratification were studied in samples belonging to the Argiles Plastiques formation of the Paris basin, by high-res...
Interstratification in Expandable Mica Produced by Cation-Exchange Treatment
1H MAS NMR Spectra 23Na 29Si Cation Exchange Interstratification Migration
2011/12/8
Abstract: A unique interstratified expandable mica was obtained by cation exchange treatments using an expandable mica synthesized from talc. The 23Na magic angle spinning (MAS) nuclear magnetic reson...
Periodic and nonperiodic interstratification in the chlorite-biotite series
Periodic nonperiodic interstratification chlorite-biotite series
2012/4/9
Asystematic TEM investigation of interstratified chlorite-biotite crystals showed that the crystals are composed of domains of periodically interstratified chlorite-biotite, non-periodically interstra...
Interstratification in Malawi Vermiculite: Effect of Bi-Ionic K-Mg Solutions
Interstratification Ion exchange Magnesium Potassium Vermiculite X-ray powder diffraction
2012/1/5
The conversion of Malawi vermiculite into K-vermiculite by treatment with bi-ionic K-Mg solutions of 1 N total ion concentration (KCl and MgCl2 mixed solutions of ionic strength equal to 0.5) was stud...
Ordered Interstratification of Dehydrated and Hydrated Na-smectite
Hydration Hydrogen positions Illite Interstratification Smectite Water X-ray powder diffraction
2012/1/12
The 001 spacing of Na-smectite was found to vary from 9.6 Å at 0% relative humidity (RH) to 12.4 Å at 60–65% RH. The 9.6-Å spacing corresponds to dehydrated Na-smectite, and the 12.4...
Ca-K Exchange Reaction and Interstratification in Montmorillonite
Enthalpy Entropy Free energy Interstratification Ion exchange Montmorillonite
2012/2/10
Cation-exchange equilibrium for Ca-K-montmorillonite was studied at 35亱, 50亱, and 90亱C and at three total normalities of the equilibrium solution (0.1, 0.05, and 0.01 N). Changes of the standard free ...
Vermiculite (Libby, Mont.) was ground in a Waring blender in a 1 m NaCl solution and, after removal of excess electrolyte, the clay fraction was separated by sedimentation. The clay was predominantly ...