Effect of Sodium Oxide on Structure of Lanthanum Aluminosilicate Glass

Autor: Assia Mabrouk, Ahmed Bachar, Yann Vaills, Aurélien Canizarès, Stuart Hampshire

Publikováno v: Ceramics, Vol 7, Iss 3, Pp 858-872 (2024)

Rare earth (RE) aluminosilicate glasses exhibit several favorable chemical, mechanical and thermal properties. As such, they are considered to be model systems for long-half-life actinides and are candidate containment materials for long-term immobil

Externí odkaz: https://doaj.org/article/46966a8f338044318861da27cd49ee77

Structure-Elasticity Relationship of Potassium Silicate Glasses from Brillouin Light Scattering Spectroscopy and Molecular Dynamics Simulations

Autor: El Mehdi Ghardi, Yann Vaills, Said Ouaskit, Abdellatif Hasnaoui, Hicham Jabraoui, Michael Badawi

Publikováno v: The journal of physical chemistry. B. 124(41)

Brillouin light scattering (BLS) spectroscopy and molecular dynamic (MD) simulations allowed the identification of a relationship between the elastic properties and the structure of K-containing glasses of formula (K2O)x-(SiO2)1-x, having different K

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b557f91b17a3a72cbe3dd1669ac9dd29
https://pubmed.ncbi.nlm.nih.gov/32960602

Effects of boron on structure of lanthanum and sodium aluminoborosilicate glasses studied by X-ray diffraction, transmission electron microscopy and infrared spectrometry

Autor: Domingos De Sousa Meneses, Emmanuel Véron, Nadia Pellerin, Cécile Genevois, Yann Vaills, Assia Mabrouk, Sandra Ory

Publikováno v: Journal of Non-Crystalline Solids
Journal of Non-Crystalline Solids, Elsevier, 2019, 503-504, pp.69-77. ⟨10.1016/j.jnoncrysol.2018.09.030⟩
Journal of Non-Crystalline Solids, 2019, 503-504, pp.69-77. ⟨10.1016/j.jnoncrysol.2018.09.030⟩

Study of glasses with a high content of rare earth elements has a particular interest due to their use in nuclear waste storage. New glass matrices are required to immobilize even higher concentrations of high-level waste in comparison to borosilicat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3710fab017d4c9498a6abd9fe3c86dc
https://hal.archives-ouvertes.fr/hal-02108481

Structural study of lanthanum sodium aluminoborosilicate glasses by NMR spectroscopy

Autor: Yann Vaills, Ahmed Bachar, Assia Mabrouk, Nadia Pellerin

Publikováno v: Materials Chemistry and Physics. 254:123492

The structural study of lanthanum sodium aluminoborosilicate (55SiO2-(25-x) Al2O3-xB2O3–15Na2O–5La2O3) glasses were investigated. The structural characterization by solid state Nuclear Magnetic Resonance have outlined the role of aluminum/boron s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f278c5a795107e54504a54362469bbe
https://doi.org/10.1016/j.matchemphys.2020.123492

In Situ High-Temperature Probing of the Local Order of a Silicate Glass and Melt during Structural Relaxation

Autor: Guillaume Guimbretière, Mohamed Naji, Domingos De Sousa Meneses, Yann Vaills

Publikováno v: The Journal of Physical Chemistry C. 119:8838-8848

Direct observation of structural relaxation at molecular scale in network glasses near the glass transition and in the melt is very challenging. Distribution of structural units forming the glass is commonly believed to depend uniquely on composition

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64759a627c282804d7836a32d120cb60
https://doi.org/10.1021/jp512234k