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  • This work is concentrated on the study of structural relaxation of chalcogenide glasses related to the viscosity behaviour of their undercooled liquids. The enthalpy relaxation of pseudobinary glass (GeS2)y(Sb2S3)1-y (y = 0.2 and 0.3) was studied using differential scanning calorimeter. Relaxation behaviour of the studied chalcogenide glasses was described by Tool-Narayanaswamy-Moynihan model and the parameters of this model (effective activation energy Δh*, parameter of non­exponentiality, parameter of nonlinearity and pre­exponencial factor) were determined. The effective activation energy of TNM model is close to the activation energy of viscous flow of undercooled liquid.
  • This work is concentrated on the study of structural relaxation of chalcogenide glasses related to the viscosity behaviour of their undercooled liquids. The enthalpy relaxation of pseudobinary glass (GeS2)y(Sb2S3)1-y (y = 0.2 and 0.3) was studied using differential scanning calorimeter. Relaxation behaviour of the studied chalcogenide glasses was described by Tool-Narayanaswamy-Moynihan model and the parameters of this model (effective activation energy Δh*, parameter of non­exponentiality, parameter of nonlinearity and pre­exponencial factor) were determined. The effective activation energy of TNM model is close to the activation energy of viscous flow of undercooled liquid. (en)
  • Tato práce je zaměřena na studium strukturní relaxace chalkogenidových skel a viskozitní chování jejich podchlazených tavenin. Pomocí diferenciální skenovaní kalorimetrie byla studována entalpická relaxace pseudobinárních skel (GeS2)y(Sb2S3)1-y (kde y = 0.2 and 0.3). Relaxační chování těchto skel bylo popsáno Tool-Narayanaswamy-Moynihan modelem a byly určeny parametry tohoto modelu (zdánlivá aktivační energie Δh*, parametr neexponenciality, parametr nelinearity a předexponenciální faktor). Hodnota zdánlivé aktivační energie TNM modelu je blízká hodnotě aktivační energie viskózního toku podchlazené kapaliny. (cs)
Title
  • Structural Relaxation Study of GeS2-Sb2S3 Chalcogenide Glasses
  • Studium strukturní relaxace GeS2-Sb2S3 chalkogenidových skel (cs)
  • Structural Relaxation Study of GeS2-Sb2S3 Chalcogenide Glasses (en)
skos:prefLabel
  • Structural Relaxation Study of GeS2-Sb2S3 Chalcogenide Glasses
  • Studium strukturní relaxace GeS2-Sb2S3 chalkogenidových skel (cs)
  • Structural Relaxation Study of GeS2-Sb2S3 Chalcogenide Glasses (en)
skos:notation
  • RIV/00216275:25310/07:00005836!RIV08-GA0-25310___
http://linked.open.../vavai/riv/strany
  • 51-56
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  • P(GP104/07/P106)
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  • 452878
http://linked.open...ai/riv/idVysledku
  • RIV/00216275:25310/07:00005836
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  • Chalcogenide Glasses; Structural Relaxation; Viskosity; DSC; TNM Model (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [F62F51BF1B2D]
http://linked.open...i/riv/mistoVydani
  • barcelona
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  • European School of Materials Science and Engineering, Fourth Research Conference
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  • Košťál, Petr
  • Málek, Jiří
  • Čičmanec, Pavel
  • Pustková, Pavla
number of pages
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  • CPDA-ETSEIB (Publicacions d'Abast S.L.L.)
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  • 84-96616-20-7
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  • 25310
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