Crystallization kinetics in selenium molybdate molecular glasses
Department of Solid State Physics, Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032, India
Accepted: 8 June 2011
We have investigated the isothermal and non-isothermal crystallization kinetics in molecular glasses in the system Ag2O-SeO2-MoO3 with different modifier (Ag2O) contents. We have observed a change from two-dimensional to three-dimensional crystallization with the increase of the modifier content. We have shown that John-Mehl-Avrami and Sestak-Berggren models give the best description of the isothermal and non-isothermal crystallization kinetics respectively for the glass-crystal transformation.
PACS: 64.70.kj – Glasses / 65.60.+a – Thermal properties of amorphous solids and glasses: heat capacity, thermal expansion, etc. / 61.43.Fs – Glasses
© EPLA, 2011