Dynamical scaling of the structure factor of some non-Euclidean systems.
Predictions of nonlinear theories on dynamics of new phase formation have been examined for the hydration of calcium silicates with light water and heavy water. In the case of hydration with light water, reasonable agreement has been observed with dynamical scaling hypothesis with a new measure of the characteristic length. The characteristic length does not follow a power law relation with time. Hydrating mass is found to be mass fractal throughout hydration, with mass fractal dimension increasing with time. But, in the case of hydration with heavy water, no agreement has been observed with the scaling hypothesis. Hydrating mass undergoes transition from mass fractal to surface fractal and finally again to mass fractal. The qualitative features of the kinetics of hydration, as measured in small-angle scattering experiments, are strikingly different for hydration with light water and heavy water.
Mazumder
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Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. smazu@apsara.barc.ernet.in
Sen
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Patra
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Khadilkar
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Cursetji
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Loidl
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Baron
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Rauch
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