Structure-property Correlations in Fluoride-sulfate-phosphate Glasses PDF Download
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Author: Huyen Quyen Le
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Languages : de
Pages : 0
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Book Description
The aim of this research was to study the relationships between the formation, structure, and properties of the new glass system, fluoro-sulfo-phosphate poly-anionic glasses, specifically focusing on the effect of the glass structure on optical properties and electrical conductivity. In this project, the fluoro-sulfo-phosphate glass system can be divided into two groups: the FPS series [(100-x-y)MFn / xSr(PO3)2 / ySrSO4 (x + y ≤ 20%, M = Mg2+, Ca2+, Sr2+, Al3+) with F- > P2O5 + SO3] were studied as new host materials for optically active cation species, while the NAPFS series [(100-x-y)AlF3 / xNaPO3 / yNa2SO4 (x + y ≥ 80%), with F-
Author: Huyen Quyen Le
Publisher:
ISBN:
Category :
Languages : de
Pages : 0
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Book Description
The aim of this research was to study the relationships between the formation, structure, and properties of the new glass system, fluoro-sulfo-phosphate poly-anionic glasses, specifically focusing on the effect of the glass structure on optical properties and electrical conductivity. In this project, the fluoro-sulfo-phosphate glass system can be divided into two groups: the FPS series [(100-x-y)MFn / xSr(PO3)2 / ySrSO4 (x + y ≤ 20%, M = Mg2+, Ca2+, Sr2+, Al3+) with F- > P2O5 + SO3] were studied as new host materials for optically active cation species, while the NAPFS series [(100-x-y)AlF3 / xNaPO3 / yNa2SO4 (x + y ≥ 80%), with F-
Author: James Granville Vaughan
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Category : Glass
Languages : en
Pages : 144
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Author: Ru Zhou
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Category :
Languages : de
Pages : 0
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Polyanionic glasses have been investigated as a new group of host materials used for laser gain media in optical fiber applications. The structure of such special glasses is based on ionic crosslinking among the different components, for example, fluoride, nitrite, and sulfate anions, together with suitable cations. By changing the concentration of different anions, it is possible to tailor the heterogeneity and structural connectivity of the glass. In my study, I use flurosulfates, fluorophosphate, and sulfophosphate, as host materials, Ni, Ag, and Ce ions as probe ions, to investigate the structural influence on optical properties of phosphate glass.
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Languages : en
Pages :
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Author: Thane Dudzinski
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Category : Materials science
Languages : en
Pages : 20
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Author: Yaqoot Shaharyar
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Category : Fluoride glasses
Languages : en
Pages : 45
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Author: M. E. Lynn
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Category :
Languages : en
Pages :
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Author: James Jay Hudgens
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Category :
Languages : en
Pages : 532
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Author: Andrew Kenneth Wittenauer
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Category : Glass
Languages : en
Pages : 61
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Author: Milad Rezazadeh
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Category :
Languages : en
Pages : 0
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The investigation of the atomic structure of glass and its corresponding crystals not only allows us to interpret its elastic and photoelastic properties, but it also allows us to predict the properties of glass which have not been produced yet or are toxic to synthesize. In order to find a correlation between elastic and photoelastic properties with the composition and atomic structure, a series of ternary (PbO)x(BaO)50-x(P2O5)50 (x=10 to 50 mol%) as well as binary (PbO)x(P2O5)100-x (x=50 to 60 mol%) and (BaO)x(P2O5)100-x (x=50 to 55 mol%) compositions have been synthesized via traditional melt quenching techniques and their compositions were verified through wavelength-dispersive spectroscopy (WDS). The local environment of lead and phosphorus as well as the glass atomic structure were investigated with 31P and 207Pb solid-state nuclear magnetic resonance (ssNMR) spectroscopy and derived molar volume from density measurements. The longitudinal and transverse wave velocities (vL and vT ) were determined using Ultrasonic Echography Method (USE). The experimental density values along with the vL and vT were then used to calculate the elastic properties in each series of glass compositions: the longitudinal, bulk, shear, and Young's moduli as well as Poisson ratio. Refractive indices, the sign and value of stress optic coefficient (C) were measured via Abbe refractometer, PS-100 Polariscope and the Senarmont compensator method, respectively. The reliability of the empirical model of photoelasticity was tested and discussed.
