Properties of Sodium Fluoride and Lithium-Molybdenum-Phosphorus Oxides Glasses
Lahbib ABBAS, Lahcen BIH, Abdelaziz AIT SIDI MOU, Zahra RAMZI
Abstract. This work aims to study the electrical and thermal properties of glass system xNaF-(0.4-x)Li2O-0.24MoO3-0.36P2O5 with (x=0, 0.08, 0.16, 0.2, 0.24, 0.32, 0.4. The characteristic temperatures (Tg, Tc, and Tf) were determined using Differential Scanning Calorimetry (DSC), while electrical measurements were performed using complex impedance spectroscopy. The aim is to carry out an in-depth study of the effect of modifying cations of these glasses. Results obtained from investigating the previous properties of treated glasses based on the substitution of Li₂O with NaF, showing that most properties do not vary linearly and reach a minimum value (glass transition temperature Tg, relaxation time τ_σ, and electrical conductivity σdc), or a maximum value (activation energies Eaσ, Eaf, frequency f0, and pre-exponential term σ0), lead to the conclusion that the effect of modifying cations is evident in these processed glasses. This effect of modifying cations in these glasses can be explained using the unified site relaxation model. The values found for τ_σ, σdc, Eaσ, Eaf, f0, and σ0 for glass system examined are very close to those found by Ingram et al., who conducted a study of AgI–AgPO3 and KI–AgPO3 glasses.
Keywords
Phosphate Glasses, Ionic Conductors, Effect Of Modifying Cations, Electrical Conductivity, Activation Energy
Published online 4/25/2026, 8 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Lahbib ABBAS, Lahcen BIH, Abdelaziz AIT SIDI MOU, Zahra RAMZI, Properties of Sodium Fluoride and Lithium-Molybdenum-Phosphorus Oxides Glasses, Materials Research Proceedings, Vol. 64, pp 624-631, 2026
DOI: https://doi.org/10.21741/9781644904091-78
The article was published as article 78 of the book Energy Futures
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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