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Mostrando ítems 1-10 de 2064
Two-dimensional model for the double glass naturally ventilated window
(Pergamon-elsevier Science LtdOxfordInglaterra, 2005)
Thermoluminescence and optical absorption properties of glass from natural diopside and of synthetic diopside glass
(Elsevier Science Bv, 2017)
Glasses based on natural mineral diopside and synthetic glasses starting from Oxides of magnesium, calcium and silicon, and some of these glasses doped with 0.1, 1.0, 2.0 and 4.0% of Ag, have been produced for the study ...
Bioactivity of leucite containing glass-ceramics using natural raw materials
(Universidad Federal de Sao Carlos, 2014-09)
Glass compositions were carefully prepared, using natural quartz and potassium feldspar as a part of the starting raw materials. The solids were prepared so as to have theoretical stoichiometric leucite and 45S5 Bioglass ...
Effects of incorporating natural minerals on production and bioactivity of bioactive glass ceramics
(Inst Chemical Technology, 2016-05)
Two glass-ceramics composition were produced from natural minerals. Quartzes and feldspars were pre-selected on the basis of their purities studied by X-ray diffraction (XRD) and chemical analysis. Prepared compositions ...
Magnetic Resonance and Conductivity Study of Lead-Cadmium Fluorosilicate Glasses and Glass-Ceramics
(2018-03-22)
The fluorine motional dynamics in fluorosilicate glasses and glass-ceramics of the SiO2-PbF2-CdF2 system was investigated by complex impedance spectroscopy and 19F nuclear magnetic resonance (NMR) spectroscopy, and the ...
Surface modification after ethanol wet milling: A comparison between pristine glasses produced from natural minerals and analytical grade raw materials
(Elsevier Science Sa, 2017-09)
Four glass compositions were produced taking into account different theoretical Leucite (KAlSi2O6)/Bioglass 45S5 (45% SiO2, 24.5% Na2O, 24.5% CaO, 6% P2O5) ratios using analytical grade reagents only; and replacing some ...
A structural study and its relation to dynamic heterogeneity in a polymer glass former
(Royal Society of Chemistry, 2021-02)
The relationship between structure and dynamical behavior (super-Arrhenius temperature dependence of relaxation time accompanied by heterogeneous dynamics) in glassy materials remains an open issue in the physics of condensed ...
Ceramic Crucible Corrosion by Heavy Metal Oxide Glasses, Part I: Phenomenological Study
(2003-07-01)
Heavy metal oxide (HMO) glasses have received special attention due to their optical, electrical and magnetic properties. The problem with these glasses is their corrosive nature. In this work, three ceramic crucibles (Al ...
Ceramic Crucible Corrosion by Heavy Metal Oxide Glasses, Part I: Phenomenological Study
(2003-07-01)
Heavy metal oxide (HMO) glasses have received special attention due to their optical, electrical and magnetic properties. The problem with these glasses is their corrosive nature. In this work, three ceramic crucibles (Al ...