Abstract
The thermal stability and crystallization of alloys in the Sb–As–Se glassy system have been studied by differential scanning calorimetry (DSC). A comparison of various simple quantitative methods to assess the level of stability of the glassy materials in the above-mentioned system is presented. All of these methods are based on characteristic temperatures, such as the glass transition temperature, T g, the onset temperature of crystallization, T in, the temperature corresponding to the maximum crystallization rate, T p, or the melting temperature, T m. In this paper, the parameter K r( T) is added to the stability criteria. The thermal stability of some ternary compounds of the Sb x As 0.36Se 0.64− x type has been evaluated experimentally and correlated with the activation energies of crystallization by this kinetic criterion and compared with those evaluated by other criteria.
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