Effect of replacement of selenium by indium on the thermal stability and crystallization kinetics of quaternary Se90-x-Zn5-Te5-Inx glassy alloys

This paper reports the effect of replacement of selenium by indium on the thermal stability and crystallization kinetics of Se_90-x-Zn₅-Te₅-In_x (x = 0, 2, 4, 6, 8, 10) glassy alloys. Assessment of the thermal stability of these glassy alloys was achieved using various simple quantitative methods based on the characteristic temperatures of DSC curves. In this case, k_gl may be more suitable for estimating the glass thermal stability in the above composition range. The kinetic parameter K_r (T) is added to the stability criteria. The results of all thermal stability parameters confirm that the thermal stability increases with increasing indium at expense of selenium in Se_90-x-Zn₅-Te₅-In_x glassy alloys. These results have been discussed in terms of cohesive energy and average heat of atomization. Finally, according to the average values of Avrami indices, n = 2 for the crystallization peaks means volume nucleation and two-dimensional growth for all the compositions.