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Determination of thermal parameters of glasses from the system Bi x (As2S3)100−x based on DSC curves

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Abstract

Thermal properties of glasses from the system Bi x (As2S3)100−x were studied by differential scanning calorimetry of a representative series of samples with x = 0.5, 2, 4, 6, 8, and 10 at.% Bi by determining the characteristic temperatures (T g, T onset, T c, T m) and enthalpies (H c, H m) of the processes taking place in the samples during their thermal treatment. Analysis of DSC recordings for the samples at the same heating rate allowed characterization of the phase transition temperature T g as a function of the content of doping atoms in accordance with the criteria of chemical bonds formation in amorphous materials. Samples with 4 and 6 at.% Bi were thermally treated at different heating rates with the aim of determining, among the others, the parameters of their thermal stability. The assessment was done based on three different criteria. A higher tendency toward crystallization was observed with the glasses having a higher Bi content. Also, a trend of T g shifting toward higher values, observed with increase in the heating rate, is in concordance with the Lasocka equation.

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Acknowledgements

The work was partly financed by the Ministry of Science and Tehnological Development of the Republic of Serbia in the frame of the project Amorphous and Nanostructural Chalcogenides and also by the Provincial Secretariat of Science and Technological Development, Autonomous Province of Vojvodina, in the frame of project Technology of obtaining and characterization of disordered semiconductors.

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  1. Department of Physics, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia

    Mirjana V. Šiljegović, Goran R. Štrbac, Fedor Skuban & Svetlana R. Lukić-Petrović

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  1. Mirjana V. Šiljegović
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  2. Goran R. Štrbac
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  3. Fedor Skuban
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  4. Svetlana R. Lukić-Petrović
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Correspondence to Svetlana R. Lukić-Petrović.

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Šiljegović, M.V., Štrbac, G.R., Skuban, F. et al. Determination of thermal parameters of glasses from the system Bi x (As2S3)100−x based on DSC curves. J Therm Anal Calorim 105, 947–951 (2011). https://doi.org/10.1007/s10973-010-1219-5

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  • DOI: https://doi.org/10.1007/s10973-010-1219-5

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