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Thermally activated crystallization of (GeSe2)70 (Sb2Te3 20(GeTe)10 alloy glass: morphological and calorimetric study

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Abstract

The rate of crystallization of (GeSe2)70(Sb2Te3)20(GeTe)10 vitreous samples was investigated by means of differential scanning calorimetry. Crystallization proceeds in two stages. The activation energy of each stage of crystallization was determined. The evolution of the microstructure during crystallization was investigated by X-ray analysis and optical and scanning electron microscopy. Crystalline nuclei emerge in the bulk and develop in a spherulitic form. A lamellar structure is clearly observed when crystallization is completed.

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Author notes

  1. N. Clavaguera

    Present address: Física del Estado Sólido, Facultad de Física, Universidad de Barcelona, Diagonal 645, Barcelona-28, Spain

Authors and Affiliations

  1. Departamento de Termología, Facultad de Ciencias Universidad Autónoma de Barcelona, Bellaterra, Barcelona, Spain

    M. T. Clavaguera-Mora, S. Suriñach, M. D. Baró & N. Clavaguera

Authors
  1. M. T. Clavaguera-Mora
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  2. S. Suriñach
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  3. M. D. Baró
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  4. N. Clavaguera
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Work supported by CAICYT. Project no. 0310.

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Clavaguera-Mora, M.T., Suriñach, S., Baró, M.D. et al. Thermally activated crystallization of (GeSe2)70 (Sb2Te3 20(GeTe)10 alloy glass: morphological and calorimetric study. J Mater Sci 18, 1381–1388 (1983). https://doi.org/10.1007/BF01111958

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  • DOI: https://doi.org/10.1007/BF01111958

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