%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