Mixed alkali effect on the spectroscopic properties of alkali-alkaline earth oxide borate glasses

2016 ◽  
Author(s):  
G. Srinivas ◽  
B. Ramesh ◽  
Md. Shareefuddin ◽  
M. N. Chary ◽  
R. Sayanna
Keyword(s):  
Alkaline Earth ◽  
Spectroscopic Properties ◽  
Borate Glasses ◽  
Alkaline Earth Oxide ◽  
Mixed Alkali ◽  
Mixed Alkali Effect

Influence of manganese ions on physical and spectroscopic properties of mixed alkali-alkaline earth oxide borate glasses

Optik ◽  
2021 ◽  
pp. 167810
Author(s):  
Abdul Hameed ◽  
A. Balakrishna ◽  
B. Srinivas ◽  
M. Chandrasekhar ◽  
M. Narasimha Chary ◽  
...  
Keyword(s):  
Alkaline Earth ◽  
Spectroscopic Properties ◽  
Borate Glasses ◽  
Manganese Ions ◽  
Alkaline Earth Oxide ◽  
Mixed Alkali

EPR and optical studies on binary mixed alkali-alkaline earth oxide borate glasses doped with Cu2+ ions

2016 ◽  
Vol 42 (2) ◽  
pp. 141-148 ◽  
Author(s):  
G. Srinivas ◽  
J. Siva Kumar ◽  
Md. Shareefuddin ◽  
M. N. Chary ◽  
R. Sayanna
Keyword(s):  
Alkaline Earth ◽  
Borate Glasses ◽  
Optical Studies ◽  
Alkaline Earth Oxide ◽  
Mixed Alkali

scholarly journals Mixed-Alkali Effect in Borate Glasses: Thermal, Elastic, and Vibrational Properties

Solids ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 16-30
Author(s):  
Seiji Kojima
Keyword(s):  
Vibrational Properties ◽  
Borate Glasses ◽  
Lithium Borate ◽  
Cauchy Type ◽  
Oxide Glasses ◽  
Raman Scattering Spectroscopy ◽  
Alkali Ions ◽  
Mixed Alkali ◽  
Mixed Alkali Effect ◽  
Longitudinal Modulus

When oxide glasses are modified by dissimilar alkali ions, a maximum in the electric resistivity or the expansion coefficient appears, called the mixed-alkali effect (MAE). This paper reviews the MAE on the thermal, elastic, and vibrational properties of the mixed-cesium lithium borate glasses, x{(1−y)Cs2O-yLi2O}-(1−x)B2O3. For the single-alkali borate glasses, xM2O(1−x)-B2O3 (M = Li, Na, K, Rb, and Cs), the glass transition temperature, Tg = 270 °C, of a borate glass monotonically increases as the alkali content x increases. However, for the mixed-cesium lithium borate glasses the Tg shows the minimum against the lithium fraction y. The dependences of the elastic properties on the lithium fraction y were discussed regarding the longitudinal modulus, Poisson’s ratio, and Cauchy-type relation. The internal vibrational bands related to the boron-oxide structural groups and the splitting of a boson peak were discussed based on Raman scattering spectroscopy. The MAE on various physical properties are discussed on the basis of the changes in the coordination number of the borons and the nonbridging oxygens caused by the dissimilar alkali ions.

Mixed alkali effect in polaronic conducting iron borate glasses

2004 ◽  
Vol 39 (13) ◽  
pp. 4325-4329 ◽  
Author(s):  
E. Mansour ◽  
H. Doweidar ◽  
G. El-Damrawi ◽  
Y. M. Moustafa
Keyword(s):  
Borate Glasses ◽  
Iron Borate ◽  
Mixed Alkali ◽  
Mixed Alkali Effect
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