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Spectroscopic Properties of Cu Doped (80-x)Sb_2O_3-20Li_2O-xMoO_3 Glasses

100%
Petkova P., Touiri H., Soltani M.
Acta Physica Polonica A
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2013
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vol. 123
|
issue 2
205-206
EN
The antimony oxide as part of the heavy metal oxide glasses is attractive to researchers in recent years. The new antimony oxide glasses have been successfully synthesized using silica crucible in the ternary system for undoped and doped (80-x)Sb_2O_3-20Li_2O-xMoO_3 (x = 20, 30 mol.%) doped with 0.1 mol.% CuO_2. The optical characterization in the visible spectral region has been carried out on the doped glasses. The role of the Jahn-Teller effect in Cu doped glasses is determined and the electron transitions in these cations have been determined.
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Physical Characterization of Sb_2O_3-M_2O-MoO_3 (M~= Li,~K) New Glasses

76%
Soltani M., Hamzaoui M., Houhou S., Touiri H., Bediar L., Ghemri A., Petkova P.
Acta Physica Polonica A
|
2013
|
vol. 123
|
issue 2
227-229
EN
New heavy metal oxide glasses involving Sb_2O_3 have been investigated. By using classical routes (melting-casting), glasses synthesized in silica crucibles were obtained in the combination of ternary systems Sb_2O_3-M_2CO_3-MoO_3 (M = Li and K). Characteristic temperatures such as glass transition T_{g}, and onset of the crystallization T_{x}, have been measured using differential scanning calorimeter. Ultrasonic velocities were measured by using pulse echo method to determine the elastics parameters, such as elastic modules (E, G, K, L). Other physical properties were measured, such as density and optical transmission window in far infrared spectra using KBr pellets. Influence of composition on these physico-chemical properties is discussed and correlated to the glass structure.
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