Non isothermal study of the devitrification kinetics of fluoroindate glasses
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Abstract
The kinetics of crystallization in an indium fluoride-based glass was studied by a non-isothermal method using differential scanning calorimetry. The experiments led to an Avrami's exponent of 4.6 for solid glass and 2.2 for a powdered sample. The apparent activation energy for crystallization was found to be 130 kJ/mol for solid glass and 354 kJ/mol for the powder. These results express the profound effect of glass particle size on those kinetic parameters, as different crystallization mechanisms take place during sample heating.
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Glass Science and Technology: Glastechnische Berichte, v. 73, n. 1 SUPPL. C, p. 406-409, 2000.
