%0 Journal Article %T Thermal properties, density and structure of percalcic and peraluminus CaO-Al2O3-SiO2 glasses %+ Institut de Physique du Globe de Paris (IPGP) %A Takahashi, Shoji %A Neuville, Daniel R. %A Takebe, Hiromichi %< avec comité de lecture %@ 0022-3093 %J Journal of Non-Crystalline Solids %I Elsevier %V 411 %P 5-12 %8 2015 %D 2015 %Z 2015JNCS..411....5T %R 10.1016/j.jnoncrysol.2014.12.019 %K Aluminosilicate glass %K Infrared spectroscopy %K Thermal properties %K Density %K Structure %Z Sciences of the Universe [physics]Journal articles %X Calcium silicate and aluminosilicate glasses with various SiO2 contents (10-76 mol%) were prepared in the wide range of [Al2O3]/[CaO] molar ratio from 0.10 to 4.00 by conventional melt-quenching method and an aerodynamic levitation device for a part of peraluminus glasses. Variations of glass transition temperature, the coefficient of linear expansion, and ionic packing factor derived from density measurements with [Al2O3]/[CaO] molar ratio were studied. The glass structures of SiO4 three dimensional network, mixed anions of (Si, Al)O4 tetrahedra, isolated AlO4 and Al-O-Al linkages were evaluated by FT-IR measurements. Compositional dependences of the properties are qualitatively related to the glass structure examined by IR spectroscopy and the proportions of AlOx (x = 4, 5, 6) species evaluated in a previous study by using 27Al MQ NMR spectroscopy. %G English %L insu-03580009 %U https://insu.hal.science/insu-03580009 %~ INSU %~ UNIV-PARIS7 %~ AFRIQ %~ CNRS %~ IPGP %~ SORBONNE-UNIVERSITE %~ UNIV-PARIS %~ ALLIANCE-SU