About: Thermal Behaviour and Properties of Na2O-TiO2-P2O5 Glasses     Goto   Sponge   NotDistinct   Permalink

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  • Differential scanning calorimetry (DSC) and thermomechanical analysis(TMA) were used to study the thermal behaviour of (50-x)Na2O-xTiO2-50P2O5 and 45Na2O-yTiO2-(55-y)P2O5 glasses. The addition of TiO2 to the starting glasses (x=0 and y=5 mol% TiO2) resulted in a nonlinear increase of glass transition temperature and dilatation softening temperature, whereas the thermal expansion coefficient decreased. All prepared glasses crystallize under heating within the temperature range of 300-610°C. The contribution of the surface crystallization mechanism over the internal one increases with increasing TiO2 content. With increasing TiO2 content the temperature of maximum nucleation rate is also gradually shifted from a value close to the glass transition temperature towards the crystallization temperature. X-ray diffraction measurements showed that the major compounds formed by glass crystallization were NaPO3, TiP2O7 and NaTi2(PO4)3.
  • Differential scanning calorimetry (DSC) and thermomechanical analysis(TMA) were used to study the thermal behaviour of (50-x)Na2O-xTiO2-50P2O5 and 45Na2O-yTiO2-(55-y)P2O5 glasses. The addition of TiO2 to the starting glasses (x=0 and y=5 mol% TiO2) resulted in a nonlinear increase of glass transition temperature and dilatation softening temperature, whereas the thermal expansion coefficient decreased. All prepared glasses crystallize under heating within the temperature range of 300-610°C. The contribution of the surface crystallization mechanism over the internal one increases with increasing TiO2 content. With increasing TiO2 content the temperature of maximum nucleation rate is also gradually shifted from a value close to the glass transition temperature towards the crystallization temperature. X-ray diffraction measurements showed that the major compounds formed by glass crystallization were NaPO3, TiP2O7 and NaTi2(PO4)3. (en)
Title
  • Thermal Behaviour and Properties of Na2O-TiO2-P2O5 Glasses
  • Thermal Behaviour and Properties of Na2O-TiO2-P2O5 Glasses (en)
skos:prefLabel
  • Thermal Behaviour and Properties of Na2O-TiO2-P2O5 Glasses
  • Thermal Behaviour and Properties of Na2O-TiO2-P2O5 Glasses (en)
skos:notation
  • RIV/00216275:25310/09:00008334!RIV10-MSM-25310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA104/07/0315), Z(MSM0021627501)
http://linked.open...iv/cisloPeriodika
  • 2
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  • 346201
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  • RIV/00216275:25310/09:00008334
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  • DSC; glasses; thermal expansion; X-ray diffraction (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [BC3B218AAE24]
http://linked.open...i/riv/nazevZdroje
  • Journal of Thermal Analysis and Calorimetry (Paper)
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http://linked.open...v/svazekPeriodika
  • 96
http://linked.open...iv/tvurceVysledku
  • Koudelka, Ladislav
  • Mošner, Petr
  • Vosejpková, Kateřina
http://linked.open...n/vavai/riv/zamer
issn
  • 1388-6150
number of pages
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  • 25310
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