Open AccessA Study of Thermal Stability And Crystallization Kinetics of SbSeGe Glassy Alloys
Author(s) -
Sunanda Sharda,
Pankaj Sharma,
Vineet Sharma
Publication year - 2017
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/225/1/012009
Subject(s) - crystallization , glass transition , activation energy , materials science , quenching (fluorescence) , thermal stability , differential thermal analysis , melting temperature , thermodynamics , kinetics , thermal , thermal analysis , analytical chemistry (journal) , chemical engineering , chemistry , composite material , polymer , physics , optics , fluorescence , diffraction , chromatography , quantum mechanics , engineering
Alloys of Sb 10 Se 90-x Ge x ( x = 0, 19, 21, 23, 25, 27) have been prepared using melt quenching technique. Differential thermal analysis has been used to determine the three characteristic temperatures, glass transition ( T g ), glass crystallization ( T c ) and melting temperature ( T m ), at four heating rates 5, 10, 15 and 20 K/min. The thermal stability and ease of glass formation have been evaluated in terms of Hruby parameter and reduced glass transition temperature respectively. The activation energy for glass crystallization ( E c ) has been calculated using Kissinger's method and Marseglia theory. The composition dependence of T g and E c has also been discussed.