Effect of replacement of selenium by indium on the thermal stability and crystallization kinetics of quaternary Se90−x–Zn5–Te5–In x glassy alloys
2018
This paper reports the effect of replacement of selenium by indium on the thermal stability and crystallization kinetics of Se90−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, kgl may be more suitable for estimating the glass thermal stability in the above composition range. The kinetic parameter Kr (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 Se90−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, \(\left\langle n \right\rangle\) = 2 for the crystallization peaks means volume nucleation and two-dimensional growth for all the compositions.
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