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- Title
KINETICS OF PHASE TRANSFORMATIONS OF Se<sub>71</sub>Te<sub>20</sub>Ag<sub>9</sub> GLASSY ALLOY.
- Authors
Naqvi, S. Faheem; Saxena, Deepika N. S.; Bhandari, D.; Sharma, Kananbala
- Abstract
Se71Te20Ag9 glass has been prepared by melt quenching technique. The sample has been structurally characterized using X-ray diffraction (XRD) and the kinetics of phase transformation has been studied using differential scanning calorimetry (DSC). Kinetic parameters of phase transformations such as activation energy of glass transition, activation energies of crystallization, Avrami exponent (n), dimensionality of growth and frequency factor have been evaluated using Kissinger, Matusita-Sakka Gao-Wang and Augis-Bennet models.. The average value of m comes out to be one suggesting surface nucleation with one-dimensional growth.
- Subjects
PHYSICAL &; theoretical chemistry; PHASE transitions; DYNAMICS; METALLIC glasses; PHASE equilibrium; METAL quenching; OPTICAL diffraction; CALORIMETRY; CONSTANTS of integration; GLASS transition temperature; CRYSTALLIZATION; NUCLEATION
- Publication
Chalcogenide Letters, 2010, Vol 7, Issue 1, p39
- ISSN
1841-4834
- Publication type
Article