2013
DOI: 10.1590/s1516-14392013005000055
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Abstract: Crystallization kinetics parameters of a stoichiometric glass with the composition Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 were investigated by subjecting parallelepipedonal samples (3 × 3 × 1.5 mm) to heat treatment in a differential scanning calorimeter at different heating rates (3, 5, 8 and 10 °C/min). The data were analyzed using Ligero's and Kissinger's methods to determine the activation energy (E) of crystallization, which yielded, respectively, E = 415 ± 37 kJ/mol and 378 ± 19 kJ/mol. Ligero's method was also … Show more

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Cited by 35 publications
(17 citation statements)
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“…Other conclusions that can be established from the analysis of these curves are those related to thermal stability parameters [13]. It is evident that the difference between the crystallization temperature and the glass transition temperature is small (36 °C), which indicates a high tendency to crystallize [7,9,10]. This coincides with what was observed during the experimental stage, since the molten liquid tended to crystallize rapidly when it was poured.…”
Section: Precursor Glasssupporting
confidence: 71%
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“…Other conclusions that can be established from the analysis of these curves are those related to thermal stability parameters [13]. It is evident that the difference between the crystallization temperature and the glass transition temperature is small (36 °C), which indicates a high tendency to crystallize [7,9,10]. This coincides with what was observed during the experimental stage, since the molten liquid tended to crystallize rapidly when it was poured.…”
Section: Precursor Glasssupporting
confidence: 71%
“…Equation 1 is known as the JMAK equation, named for its developers, Johnson, Mehl, Avrami and Kolmogorov [7]. Where x is the fraction of glass transformed into crystals at a given temperature and time (t), n is Avrami's coefficient that is associated with both the dimension of the crystal and the nucleation mechanism.…”
Section: Theoretical Backgroundmentioning
confidence: 99%
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“…A linear dependence was observed and the Avrami index, calculated from the slope of the straight lines, was found to be ~3 in the temperature range of 875°C to 885°C. This indicates, at least in this temperature range, that the crystallization mechanism is predominantly volumetric . Therefore, the crystal growth treatments for measuring mechanical properties were performed in this same temperature range.…”
Section: Resultsmentioning
confidence: 99%
“…This indicates, at least in this temperature range, that the crystallization mechanism is predominantly volumetric. 18,19 Therefore, the crystal growth treatments for measuring mechanical properties were performed in this same temperature range.…”
Section: Thermal and Physical Propertiesmentioning
confidence: 99%