Study of nonisothermal crystallization in amorphous Se90In9.3Cu0.7 alloy

Amorphous alloy of Se90In9.3Cu0.7 has been prepared by the usual melt-quench technique under vacuum. Data from differential thermal analysis (DTA) at various heating rates and x-ray analysis of this alloy were investigated and reported. The activation energies of glass transition, Eg, and crystallization transition, Ec, were evaluated from the dependence of the glass temperature Tg and the crystallization temperature Tc on the heating rate. The crystalline phases resulting from DTA were identified using x-ray diffraction. The results reveal that the prepared alloy is structurally heterogeneous at a molecular level, in which In6Se7, Cu5Se4, and Cu2Se dispersed in Se–Se matrix.