ISSN:
1572-8943
Keywords:
arsenic triselenide
;
differential scanning calorimetry
;
isothermal crystallization kinetics
;
melting enthalpy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Isothermal crystallization of bulk As2Se3 glass was studied in temperature range 270-360°C. Johnson-Mehl-Avrami (JMA) equation describes the crystallization process in the whole temperature range. By means of analysis of JMA equation the temperature dependence of kinetic exponent n was found, its value changes from 3.8 to 1.9 with increasing temperature. The relationship between the value of n and crystal morphology was briefly discussed. Furthermore the value of apparent activation energy E was determined as well as melting enthalpy. Temperature dependence of crystal growth rate was also determined.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1010175307204
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