title: Effect of Sodium Oxide Modifier on Structural and Elastic Properties of Silicate Glass.
abstract: Molecular dynamics (MD) simulations and Brillouin light scattering (BLS) spectroscopy experiments have been carried to study the structure of sodium silicate glasses (SiO2)(100-X)(Na2O)X, where X ranges from 0 to 45 at room temperature. The MD-obtained glass structures have been subjected to energy minimization at zero temperature to extract the elastic constants also obtained by BLS spectroscopy. The structures obtained are in good agreement with the structural experimental data realized by different techniques. The simulations show that the values of the elastic constants as a function of X (i.e., Na2O mol %) agree well with those measured by BLS spectroscopy. The variations of elastic constants C11and C44as a function of Na2O mol % are discussed and correlated to structural results and potential energies of oxygen atoms.
authors.affiliation: Laboratoire physique de la matière condensée, Faculté des sciences Ben M'sik, Université Hassan II de Casablanca , Casablanca 20100, Maroc.|Laboratoire de Chimie et Physique - Approche Multi-Echelle des Milieux Complexes (LCP-A2MC, EA4632), Institut Jean Barriol FR2843 CNRS, Université de Lorraine , Rue Victor Demange, 57500 Saint-Avold, France.
authors.forename: Hicham
authors.identifier: 0000-0003-1201-8358
authors.initials: H
authors.lastname: Jabraoui
authors.affiliation: Université d'Orléans, CEMHTI - CNRS UPR 3079 , Avenue du Parc Floral, BP 6749, 45067 Orléans, Cedex 2, France.
authors.forename: Yann
authors.initials: Y
authors.lastname: Vaills
authors.affiliation: LS3M, Faculte Poydisciplinaire Khouribga, Univ Hassan 1 , B.P.: 145, 25000 Khouribga, Morocco.
authors.forename: Abdellatif
authors.initials: A
authors.lastname: Hasnaoui
authors.affiliation: Laboratoire de Chimie et Physique - Approche Multi-Echelle des Milieux Complexes (LCP-A2MC, EA4632), Institut Jean Barriol FR2843 CNRS, Université de Lorraine , Rue Victor Demange, 57500 Saint-Avold, France.
authors.forename: Michael
authors.initials: M
authors.lastname: Badawi
authors.affiliation: Laboratoire physique de la matière condensée, Faculté des sciences Ben M'sik, Université Hassan II de Casablanca , Casablanca 20100, Maroc.
authors.forename: Said
authors.initials: S
authors.lastname: Ouaskit