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Article citations


Aqdim, S. (1990) Identification et Etude Thermique et Electrique des Phases Vitreuses des Systèmes Ternaires Li2O-M2O3-P2O5 (M = Cr, Fe). Diplome d’Etude Supérieur de 3ème Cycle, Faculté des Science Rabat.

has been cited by the following article:

  • TITLE: Elaboration and Characterization of Glasses and Ceramic-Glasses within Theternary Diagram Li2O-Cr2O3-P2O5

    AUTHORS: Said Aqdim, Yassine Er-rouissi, Abdelmjid Cherif, Radouane Makhlouk

    KEYWORDS: Phosphate Glasses, Glass Formation, XRD, IR Spectroscopy, Electrical Conductivity, Dielectric Permittivity

    JOURNAL NAME: Advances in Materials Physics and Chemistry, Vol.7 No.4, April 30, 2017

    ABSTRACT: Use of the regular melting-quench method allowed the isolation of a small glass domain within the ternary system Li2O-P2O5-Cr2O3 at 1000°C. Electrical conductivity and dielectric permittivity measures on sample glasses and ceramic glasses of this domain were performed at a frequency of 10 kHz and at temperatures between 25°C and 300°C. The values of dielectric permittivity and electrical conductivity increase with increasing Li2O content. However, increases of Cr2O3 content, even at low concentrations, induce a change in electrical conductivity behaviour from that of a glass to that of a ceramic glass. The introduction of an increasing amount of Li2O content in vitreous phosphorus pentoxide changes its three-dimensional network; rupture of the P-O-P bond then occurs and there is formation of easily polarisable entities with quite high values of . The vibrational spectroscopy technique I.R has allowed an efficient investigation of the structural change versus composition within the above indicated ternary diagram. The maximal dielectric permittivity obtained at 300°C, both for the glasses and for the ceramic glasses varied in the order 104 to 3 × 105, while the maximum electrical conductivity obtained at 300°C for the ceramic glasses was in the order of 10-3 Ωcm-1.