scholarly journals Correlations between Glass Structure and Emission Properties of Sn-Doped Zinc Phosphate Glasses Prepared with Different Cooling Rates

2017 ◽  
pp. 1383
Keyword(s):  
Zinc Phosphate ◽  
Glass Structure ◽  
Phosphate Glasses ◽  
Cooling Rates ◽  
Emission Properties

scholarly journals Development of a New Sr-O Parameterization to Describe the Influence of SrO on Iron-Phosphate Glass Structural Properties Using Molecular Dynamics Simulations

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4326
Author(s):  
Pawel Goj ◽  
Aleksandra Wajda ◽  
Pawel Stoch
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Interatomic Potential ◽  
Glass Structure ◽  
Ion Pairs ◽  
Glass Network ◽  
Iron Phosphate ◽  
Phosphate Glasses ◽  
Potential Applications ◽  
Dynamics Simulations

Iron-phosphate glasses, due to their properties, have many potential applications. One of the most promising seems to be nuclear waste immobilization. Radioactive 90Sr isotope is the main short-lived product of fission and, due to its high solubility, it can enter groundwater and pose a threat to the environment. On the other hand, Sr is an important element in hard tissue metabolic processes, and phosphate glasses containing Sr are considered bioactive. This study investigated the effect of SrO addition on a glass structure of nominal 30Fe2O3-70P2O5 chemical composition using classical molecular dynamics simulations. To describe the interaction between Sr-O ion pairs, new interatomic potential parameters of the Buckingham-type were developed and tested for crystalline compounds. The short-range structure of the simulated glasses is presented and is in agreement with previous experimental and theoretical studies. The simulations showed that an increase in SrO content in the glass led to phosphate network depolymerization. Analysis demonstrated that the non-network oxygen did not take part in the phosphate network depolymerization. Furthermore, strontium aggregation in the glass structure was observed to lead to the non-homogeneity of the glass network. It was demonstrated that Sr ions prefer to locate near to Fe(II), which may induce crystallization of strontium phosphates with divalent iron.

Synthesis and study by FTIR, 31P NMR and electrochemical impedance spectroscopy of vanadium zinc phosphate glasses prepared by sol–gel route

2016 ◽  
Vol 432 ◽  
pp. 459-465 ◽  
Author(s):  
Driss Rair ◽  
Abdelhadi Rochdi ◽  
Abdelilah Majjane ◽  
Touria Jermoumi ◽  
Abdelkrim Chahine ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
31P Nmr ◽  
Zinc Phosphate ◽  
Electrochemical Impedance ◽  
Sol Gel ◽  
Phosphate Glasses

Lithium-aluminum-zinc phosphate glasses activated with Tb3+ and Tb3+/Eu3+ for green laser medium, reddish-orange and white phosphor applications

2018 ◽  
Vol 79 ◽  
pp. 358-365 ◽  
Author(s):  
H.I. Francisco-Rodriguez ◽  
A. Lira ◽  
O. Soriano-Romero ◽  
A.N. Meza-Rocha ◽  
S. Bordignon ◽  
...  
Keyword(s):  
Zinc Phosphate ◽  
Green Laser ◽  
Phosphate Glasses ◽  
Laser Medium ◽  
Lithium Aluminum ◽  
Reddish Orange

Spectroscopic studies of lithium phosphate, lead phosphate and zinc phosphate glasses containing TiO2: Effect of gamma irradiation

2013 ◽  
Vol 1035 ◽  
pp. 209-217 ◽  
Author(s):  
N.A. Ghoneim ◽  
A.M. Abdelghany ◽  
S.M. Abo-Naf ◽  
F.A. Moustafa ◽  
Kh.M. ElBadry
Keyword(s):  
Gamma Irradiation ◽  
Zinc Phosphate ◽  
Spectroscopic Studies ◽  
Phosphate Glasses ◽  
Lead Phosphate ◽  
Lithium Phosphate

Physicochemical, spectral, luminescence, and stimulated emission properties of phosphate glasses with high neodymium concentrations

1976 ◽  
Vol 6 (10) ◽  
pp. 1220-1222 ◽  
Author(s):  
S Kh Batygov ◽  
Yu K Voronko ◽  
B I Denker ◽  
A A Zlenko ◽  
Aleksandr Ya Karasik ◽  
...  
Keyword(s):  
Phosphate Glasses ◽  
Stimulated Emission ◽  
Emission Properties ◽  
Spectral Luminescence

Identification of chromium and nickel sites in zinc phosphate glasses

2005 ◽  
Vol 740 (1-3) ◽  
pp. 169-173 ◽  
Author(s):  
R.V.S.S.N. Ravikumar ◽  
J. Yamauchi ◽  
A.V. Chandrasekhar ◽  
Y.P. Reddy ◽  
P. Sambasiva Rao
Keyword(s):  
Zinc Phosphate ◽  
Phosphate Glasses
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