Abstract

The influence of the thermal prehistory of precursors on the phase transformations occurring in the MgO-SiO2-H2O(NaOH) system during hydrothermal synthesis of nanotubular magnesium hydrosilicates Mg3Si2O5(OH)4 with a chrysotile structure is investigated by in situ Calvet calorimetry. It is demonstrated that the preliminary dehydration of the initial solid-phase reactants substantially affects the kinetics of their hydration and subsequent formation of nanotubes with a chrysotile structure.

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