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Chemical bond approach to activation energy of crystallization in some Se-Ge-M (M=Bi, In) chalcogenide glasses

机译:Se-Ge-M(M = Bi,In)硫族化物玻璃中化学键化方法的结晶活化能

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摘要

The crystallization kinetics of glassy Se_(78-x)Ge_(22)Bi_x (0 ≤ x ≤ 10) and Se_(80-x)YGe_(20)In_x (0 ≤ x ≤ 15) alloys has been studied by an isothermal method. For this purpose, conductivity measurements are done during isothermal annealing at various temperatures between the glass transition and crystallization temperatures. Avrami's equation is used to calculate the activation energy of crystallization (E_c). The composition dependence of E_c in these alloys has been discussed using chemical bond approach.
机译:通过等温方法研究了玻璃态Se_(78-x)Ge_(22)Bi_x(0≤x≤10)和Se_(80-x)YGe_(20)In_x(0≤x≤15)合金的结晶动力学。为此,在等温退火期间在玻璃化转变温度和结晶温度之间的各种温度下进行电导率测量。 Avrami方程用于计算结晶的活化能(E_c)。使用化学键方法讨论了这些合金中E_c的成分依赖性。

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