Buscar
Mostrando ítems 21-30 de 315
Correlation between conductivity and free volume in rubidium and cesium silicate glasses
(2007-06)
Following recent finding published in this journal it is shown that using conductivity and molar volume in binary rubidium and cesium silicate glasses, both measured at room temperature, a common cubic scaling relation was ...
Thermal, structural and optical properties of new tungsten lead-pyrophosphate glasses
(Elsevier B.V., 2011-10-01)
Crystalline lead-pyrophosphate precursor was prepared in aqueous solution from lead nitrate and phosphoric acid and characterized by X-ray diffraction, thermogravimetry and Raman scattering. This crystalline lead-phosphate ...
Crystallization study of molybdate phosphate glasses by thermal analysis
(Elsevier B.V., 2009-11-01)
Vitreous samples were prepared in the binary system NaPO(3)-MoO(3) and their characteristic temperatures were determined by Differential Scanning Calorimetry. Glasses with high amounts of MoO(3) (>45 mol%) exhibit an intense ...
Stabilization of fluoroindate glasses by magnesium fluoride and other heavy metal fluorides
(Sociedade Brasileira de Química, 1998-06-01)
Their extended transparency in the IR makes them attractive for use as optical fibers for CO laser power delivery and optical amplification. This paper firstly describes the spectacular stabilizing effect of MgF2 on the ...
Structural, thermal and optical properties of CaBO and CaLiBO glasses doped with Eu3+
(Elsevier B.V., 2015)
Structural, thermal and optical properties of CaBO and CaLiBO glasses doped with Eu3+
(Elsevier B.V., 2015)
Stabilization of fluoroindate glasses by magnesium fluoride
(1997-05-12)
This paper describes the stabilizing effect of MgF2 on the binary system InF3-BaF2. A complete investigation of the In-Ba-Mg system led to samples up to 5 mm in thickness. Further optimization of this system was achieved ...
Phosphotellurite glass and glass-ceramics with high TeO2 contents: Thermal, structural and optical properties
(2019-01-01)
Phosphotellurite based glasses have interesting features such as low characteristic temperatures, high glass forming ability, high thermal stability against crystallization and a broad transparency window from ultraviolet ...
Stabilization of fluoroindate glasses by magnesium fluoride
(1997-05-12)
This paper describes the stabilizing effect of MgF2 on the binary system InF3-BaF2. A complete investigation of the In-Ba-Mg system led to samples up to 5 mm in thickness. Further optimization of this system was achieved ...