Network structure of molybdenum lead phosphate glasses: Infrared spectra and constants of elasticity

2011 ◽  
Vol 406 (3) ◽  
pp. 562-566 ◽  
Author(s):  
Yasser B. Saddeek
Keyword(s):  
Infrared Spectra ◽  
Network Structure ◽  
Phosphate Glasses ◽  
Lead Phosphate

Network structure of tellurite phosphate glasses: Optical absorption and infrared spectra

1993 ◽  
Vol 73 (1) ◽  
pp. 71-74 ◽  
Author(s):  
A. Abdel‐Kader ◽  
R. El‐Mallawany ◽  
M. M. ElKholy
Keyword(s):  
Optical Absorption ◽  
Infrared Spectra ◽  
Network Structure ◽  
Phosphate Glasses

Optical properties of lead phosphate glasses

1994 ◽  
Vol 167 (1-2) ◽  
pp. 122-126 ◽  
Author(s):  
C. Dayanand ◽  
R.V.G.K. Sarma ◽  
G. Bhikshamaiah ◽  
M. Salagram
Keyword(s):  
Optical Properties ◽  
Phosphate Glasses ◽  
Lead Phosphate

Characterization of Lead-Iron Phosphate Nuclear Waste Glasses

1985 ◽  
Vol 50 ◽  
Author(s):  
Edwin Schiewer ◽  
Werner Lutze ◽  
Lynn A. Boatner ◽  
Brian C. Sales
Keyword(s):  
Iron Oxide ◽  
Nuclear Waste ◽  
Iron Phosphate ◽  
Phosphate Glasses ◽  
Distilled Water ◽  
Lead Phosphate ◽  
Pure Lead ◽  
High Level ◽  
Iron Phosphate Glasses

Lead-iron phosphate glasses have recently been proposed as a new primary disposal medium for both commercial nuclear reactor wastes and some types of high-level radioactive U.S. defense wastes [1–41. The initial work on the characterization of lead-iron phosphate nuclear waste glasses, hereafter named phosphate glasses, concentrated on the preparation, thermal properties, and devitrification behavior (both during and after preparation) of these glasses. Aqueous corrosion rates were measured at 90°C in distilled water, acidic and basic solutions, low eH distilled water, and in the “reference’ natural ground water appropriate to disposal in a tuffaceous formation (i.e., J-13 well water [5]). The results of these initial investigations were extremely encouraging and indicated that homogeneous, highly leach resistant (at 90° C) phosphate glasses loaded with either commercial or high-level U.S. defense wastes could be prepared at relatively low temperatures (process temp.:≤ 1050°C). The chemical stability of the phosphate glasses was found to be primarily due to the stabilizing effect of iron on the structure of lead phosphate glass. This effect is illustrated in Fig. 1 where the leachate conductivity at 90°C is plotted versus time for phosphate glasses with varying iron concentrations. The addition of 9 wt.% iron oxide to lead metaphosphate glass [Pb(PO3)2] increases the chemical durability of the glass in water by a factor of about 104. The tendency of pure lead phosphate glasses to crystallize is also greatly suppressed by the addition of iron oxide [3,4]. Lead metaphosphate glass can be completely crystallized by heating the glass in air at 30O°C for several hours. Lead-iron phosphate glasses, however, can be heated in air for several hundred hours at a temperature as high as 500°C without exhibiting any evidence of crystallization.

Mössbauer and differential thermal analysis studies of iron alkali lead-phosphate glasses

2020 ◽  
Vol 96 (2) ◽  
pp. 025706
Author(s):  
A El-Denglawey ◽  
Yasser B Saddeek ◽  
H H El-Bahnasawy ◽  
K Aly ◽  
A Dahshan ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Phosphate Glasses ◽  
Lead Phosphate

Spectroscopic and pump power dependent upconversion studies of Er 3+ -doped lead phosphate glasses for photonic applications

2017 ◽  
Vol 699 ◽  
pp. 959-968 ◽  
Author(s):  
Ch. Basavapoornima ◽  
K. Linganna ◽  
C.R. Kesavulu ◽  
S. Ju ◽  
B.H. Kim ◽  
...  
Keyword(s):  
Pump Power ◽  
Phosphate Glasses ◽  
Lead Phosphate

Effect of MnO2 Doping on Optical and FTIR Spectra of Lead Phosphate Glasses

2016 ◽  
Vol 5 (2) ◽  
pp. 213-218 ◽  
Author(s):  
H. A. El Batal ◽  
A. M. Abdelghany ◽  
M. Y. Hassan ◽  
T. D. Abdelaziz ◽  
F. M. EzzElDin
Keyword(s):  
Phosphate Glasses ◽  
Ftir Spectra ◽  
Lead Phosphate

Spectroscopic Studies and Luminescence Spectra of Dy2O3 Doped Lead Phosphate Glasses

Silicon ◽  
2012 ◽  
Vol 4 (3) ◽  
pp. 221-227 ◽  
Author(s):  
M. A. MARZOUK ◽  
M. A. OUIS ◽  
Y. M. HAMDY
Keyword(s):  
Spectroscopic Studies ◽  
Phosphate Glasses ◽  
Luminescence Spectra ◽  
Lead Phosphate
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