Studies on optimizing sesquioxide contents to enhance luminescence efficiency of Pr3+ ions in PbO−PbF2−B2O3 glass system

2014 ◽  
Vol 1073 ◽  
pp. 164-173 ◽  
Author(s):  
D. Rajeswara Rao ◽  
G. Sahaya Baskaran ◽  
P. Ramesh Babu ◽  
Y. Gandhi ◽  
N. Veeraiah
Keyword(s):  
Glass System ◽  
Luminescence Efficiency ◽  
B2o3 Glass

scholarly journals OPTICAL PROPERTIES ON Li2O-K2O-WO3-B2O3 GLASS SYSTEM

2013 ◽  
Vol 22 ◽  
pp. 278-283
Author(s):  
A. EDUKONDALU ◽  
M. A. SAMEE ◽  
SHAIKH KAREEM AHMMAD ◽  
SAIR MD. TAQIULLAH ◽  
SYED RAHMAN ◽  
...  
Keyword(s):  
Glass Structure ◽  
Glass System ◽  
Alkali Concentration ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Mixed Alkali ◽  
Absorption Studies ◽  
Mixed Alkali Effect ◽  
Oxide Ion ◽  
B2o3 Glass

Mixed alkali tungsten borate glasses xLi2O–(30–x) K2O–10WO3–60B2O3 (0 < x < 30) were prepared from the melts. These glasses were characterized using X-ray diffraction, differential scanning calorimetry and density measurements. Optical absorption studies were carried out as a function of alkali content to look for mixed alkali effect (MAE) on the spectral properties of these glasses. From the study of ultraviolet absorption edge, the optical band gap energies and Urbach energies were evaluated. The average electronic polarizability of the oxide ion, optical basicity and the interaction parameters were also evaluated for all the glasses. Many of these parameters vary non-linearly exhibiting a minima or maxima with increasing alkali concentration, indicating the mixed alkali effect. An attempt is made to interpret MAE in this glass system in terms of its glass structure.

Anomalous elastic behaviour of xSrO-10PbO-(90-x)B2O3 glass system

2016 ◽  
Vol 444 ◽  
pp. 55-63 ◽  
Author(s):  
Nurul Syahidah Sabri ◽  
A.K. Yahya ◽  
R. Abd-Shukor ◽  
Mahesh Kumar Talari
Keyword(s):  
Glass System ◽  
Elastic Behaviour ◽  
B2o3 Glass

Thermoluminescence features of Er3+ doped BaO-ZnO-LiF-B2O3 glass system for high-dose gamma dosimetry

2020 ◽  
Vol 46 (11) ◽  
pp. 19343-19353 ◽  
Author(s):  
Nimitha S. Prabhu ◽  
K. Sharmila ◽  
H.M. Somashekarappa ◽  
G. Lakshminarayana ◽  
Soumen Mandal ◽  
...  
Keyword(s):  
Glass System ◽  
High Dose ◽  
B2o3 Glass

Dielectric dispersion in the PbO–MoO3–B2O3 glass system

2004 ◽  
Vol 132 (3-4) ◽  
pp. 235-240 ◽  
Author(s):  
P. Syam Prasad ◽  
B.V. Raghavaiah ◽  
R. Balaji Rao ◽  
C. Laxmikanth ◽  
N. Veeraiah
Keyword(s):  
Dielectric Dispersion ◽  
Glass System ◽  
B2o3 Glass

Physical, optical properties and radiation shielding studies of xLa2O3-(100-x)B2O3 glass system

2020 ◽  
Vol 46 (4) ◽  
pp. 5380-5386 ◽  
Author(s):  
Y. Al-Hadeethi ◽  
M.I. Sayyed ◽  
J. Kaewkhao ◽  
Bahaaudin M. Raffah ◽  
Rahma Almalki ◽  
...  
Keyword(s):  
Optical Properties ◽  
Radiation Shielding ◽  
Glass System ◽  
B2o3 Glass

Effect of TiO2 addition on the chemical durability of Bi2O3–SiO2–ZnO–B2O3 glass system

2008 ◽  
Vol 354 (42-44) ◽  
pp. 4777-4785 ◽  
Author(s):  
C. Fredericci ◽  
H.N. Yoshimura ◽  
A.L. Molisani ◽  
H. Fellegara
Keyword(s):  
Chemical Durability ◽  
Glass System ◽  
Tio2 Addition ◽  
B2o3 Glass

Effect of the addition of Fe2O3 and heat treatment duration on the magnetic susceptibility of V2O5-P2O5-B2O3 glass system

1992 ◽  
Vol 3 (3) ◽  
pp. 144-146 ◽  
Author(s):  
I. Kashif ◽  
H. Farouk ◽  
S. A. Aly ◽  
A. M. Sanad ◽  
M. H. El-Kottamy ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Magnetic Susceptibility ◽  
Treatment Duration ◽  
Glass System ◽  
Heat Treatment Duration ◽  
B2o3 Glass

DSC, ESR AND IR SPECTRAL STUDIES ON Li2O–WO3–B2O3 GLASS SYSTEM DOPED WITH VANADIUM IONS

2009 ◽  
Vol 02 (03) ◽  
pp. 127-130 ◽  
Author(s):  
LINGANABOINA SRINIVASA RAO ◽  
TUMU VENKATAPPA RAO
Keyword(s):  
Glass Transition ◽  
Local Structure ◽  
Glass Matrix ◽  
Glass Forming Ability ◽  
Glass System ◽  
Spectral Studies ◽  
Glass Forming ◽  
System A ◽  
Vanadium Ions ◽  
B2o3 Glass

With in glass forming region of Li2O–WO3–B2O3 glass system, a particular composition 40Li2O–5WO3–(55 –x) B2O3 : x V2O5 (with x ranging from 0.2 to 0.8, all are in mol.%) is chosen. The DSC traces are obtained to identify the glass transition temperature ( Tg ) and the glass forming ability of all the glass samples. The ESR and IR spectra portray the local structure of the glass system and valance states of the vanadium ions in the glass matrix. As the content of V2O5 increases up to 0.6 mol.% in the glass system, a gradual conversion of vanadium ions from V5+ state to V4+ state is observed, causing the depolymerization in the glass matrix by the transformation of several glass forming units BO4 → BO3 and WO4 → WO6 .

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