Optical and electronic polarizability investigation of Nd3+-doped soda-lime silicate glasses

Series of multi-component glass systems of the following chemical composition SiO2-Na2O-CaO-Nd2O3 with an increasing of rare earth concentration, the effect of Nd2O3 on the optical properties of the glass systems is investigated. On the basis of the measure values of densities and refraction, Nd3+ ion concentration in glasses and several other physical properties were determined. The absorption coefficient, both direct and indirect optical energy gaps, and Urbach energy are evaluated using the absorption edge calculations. The different factors that play a role for controlling the refractive indices such as electronic polarizability, bridging and non-bridging oxygen, and optical basicity are discussed in accordance with the obtained index data. The non-crystalline phase identified basing on X-ray diffraction analysis.

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Electronic polarizability in silicate glasses by comparison of experimental and theoretical optical basicities

International Journal of Applied Glass Science ◽

10.1111/ijag.16009 ◽

2021 ◽

Author(s):

Takayuki Komatsu ◽

Vesselin Dimitrov ◽

Tina Tasheva ◽

Tsuyoshi Honma

Keyword(s):

Silicate Glasses ◽

Electronic Polarizability

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Ac conductivity and dielectric relaxation in ionically conducting soda–lime–silicate glasses

Journal of Non-Crystalline Solids ◽

10.1016/j.jnoncrysol.2008.05.028 ◽

2008 ◽

Vol 354 (33) ◽

pp. 3952-3957 ◽

Cited By ~ 81

Author(s):

Alo Dutta ◽

T.P. Sinha ◽

P. Jena ◽

S. Adak

Keyword(s):

Dielectric Relaxation ◽

Ac Conductivity ◽

Soda Lime ◽

Silicate Glasses

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Structural and physico-chemical characterization of some soda lime zinc alumino-silicate glasses

Journal of Non-Crystalline Solids ◽

10.1016/j.jnoncrysol.2012.09.001 ◽

2012 ◽

Vol 358 (23) ◽

pp. 3280-3288 ◽

Cited By ~ 29

Author(s):

S. Petrescu ◽

M. Constantinescu ◽

E.M. Anghel ◽

I. Atkinson ◽

M. Olteanu ◽

...

Keyword(s):

Chemical Characterization ◽

Soda Lime ◽

Silicate Glasses ◽

Physico Chemical ◽

Alumino Silicate

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Structure and Topology of Soda-Lime Silicate Glasses: Implications for Window Glass

The Journal of Physical Chemistry B ◽

10.1021/jp506155p ◽

2014 ◽

Vol 118 (44) ◽

pp. 12750-12762 ◽

Cited By ~ 15

Author(s):

O. Laurent ◽

B. Mantisi ◽

M. Micoulaut

Keyword(s):

Window Glass ◽

Soda Lime ◽

Silicate Glasses ◽

And Topology

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The Influence of Environment in the Alteration of the Stained-Glass Windows in Portuguese Monuments

Heritage ◽

10.3390/heritage1020025 ◽

2018 ◽

Vol 1 (2) ◽

pp. 365-376 ◽

Cited By ~ 4

Author(s):

Teresa Palomar ◽

Pedro Redol ◽

Isabel Cruz Almeida ◽

Eduardo Pereira da Silva ◽

Marcia Vilarigues

Keyword(s):

Analytical Techniques ◽

Soda Lime ◽

Silicate Glasses ◽

High Humidity ◽

Atmospheric Conditions ◽

Stained Glass ◽

Mixed Alkali ◽

Alkali Silicate ◽

High Humidity Environment ◽

Humidity Environment

This work presents the results of the exposure of soda-lime, potash-lime and mixed-alkali silicate glasses during ten and twenty months in different Portuguese monuments with historical stained-glass windows to characterize the influence of local environmental conditions. The glass samples were exposed in the Monastery of Batalha (Batalha), the Monastery of Jerónimos (Lisbon), and the Cathedral of Évora (Évora). A set of analytical techniques to assess the physicochemical effects were used, including optical microscopy and Fourier transform infrared spectroscopy. All the samples presented crystalline deposits on their surface; however, their quantity and nature depended on the atmospheric conditions during the days before the collection. Potash-lime silicate glass was the most altered glass in comparison with soda-lime and mixed-alkali silicate glasses. The samples from the Cathedral of Évora showed a high content of dust and salts on their surface but without severe chemical pathologies; however, those samples exposed in the Monastery of Jerónimos and the Monastery of Batalha presented alteration layers due to a high humidity environment.

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