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Thermal properties and stability of lithium titanophosphate glasses

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Abstract

DTA was used to study thermal properties and thermal stability of (50-x)Li2O-xTiO2-50P2O5 (x=0–10 mol%) and 45Li2Ot-yTiO2-(55-y)P2O5 (y=5–20 mol%) glasses. The addition of TiO2 to lithium phosphate glasses results in a non-linear increase of glass transition temperature. All prepared glasses crystallize under heating within the temperature range of 400–540°C. The lowest tendency towards crystallization have the glasses with x=7.5 and y=10 mol% TiO2. X-ray diffraction analysis showed that major compounds formed by annealing of the glasses were LiPO3, Li4 P2O7, TiP2O7 and NASICON-type LiTi2(PO4)3. DTA results also indicated that the maximum of nucleation rate for 45Li2O-5TiO2-50P2O5 glass is close to the glass transition temperature.

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Authors and Affiliations

  1. Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, 532 10, Pardubice, Czech Republic

    P. Mošner, K. Vosejpková & L. Koudelka

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  1. P. Mošner
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  2. K. Vosejpková
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  3. L. Koudelka
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Correspondence to P. Mošner.

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Mošner, P., Vosejpková, K. & Koudelka, L. Thermal properties and stability of lithium titanophosphate glasses. J Therm Anal Calorim 95, 53–58 (2009). https://doi.org/10.1007/s10973-008-9192-y

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  • DOI: https://doi.org/10.1007/s10973-008-9192-y

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