silicate glasses
Ultraviolet and Visible Upconversion Luminescence and Spectroscopic Properties in Neodymium Doped Soda Lime Silicate Glasses
... oxide glasses, phosphate and silicate glasses are the two most important hosts which can be used extensively for lasers and fiber amplifier [10, ...to silicate glasses, phosphate ...
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Measurement of Thermal Transport Properties for Molten Silicate Glasses at High Temperatures by Means of a Novel Laser Flash Technique
... six silicate glasses in the molten state have been determined in the temperature range between 1073 and 1673 ...the glasses. Thermal transport properties of six glasses were found to slightly ...
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Thermal and Physical properties of Pm3+ Ions Doped Lead Lithium Bismuth Silicate Glasses
... preparation of lead lithium bismuth silicate glasses, for two hours to ensure the melt to be free from gases. The melt was stirred several times to ensure homogeneity. For quenching, the melt was quickly ...
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Effects of d0 and s2 cations on optical properties of silicate glasses
... inert glasses in a neutral pH solution where there is a very thin ...durable glasses which form a diffusion limited hydrated layer in the order of 10 nm to circa 500 nm, which occurs in low alkali ...
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Optical and structural properties of d0 ion doped silicate glasses for photovoltaic applications
... However, glasses produced using a standard melt quench procedure doped with various d 0 transition metal ions have been demonstrated to fluoresce under UV excitation (Figure 10) ...cover glasses in PV ...
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X ray photoelectron spectroscopy and magnetic studies of transition metal silicate glasses
... Figure 8-2: a Variation of the fraction of noir-br~idgiiag oxygcn atoms and b thc diffc,rence in binding energy between bridging and non-bridging oxygen peaks with t7Yillsition metal oxi[r] ...
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Structural Role of Cerium Oxide in Lead Silicate Glasses and Glass Ceramics
... of glasses [3] [4] ...modify silicate network similar to alkali oxide particularly at low concentration [12] ...form silicate units containing NBO atoms [12] [13] [14]. In glasses enriched ...
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Uranium glasses: II Uranium silicate glasses
... PROPERTIES Range of Glass Formation The chief purpose of this study was to determine the limits of compositions that would form glasses in a system that was principally uranium silicate.[r] ...
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Effect of Gamma Radiation on the Structure of Neodymium: Chromium Doped Silicate Glasses
... Sol gel method was successfully used for the preparation of pure silica gel derived glasses doped with Nd 3+ : Cr 3+ . The amorphous nature of gel glasses have been confirmed by XRD spectra at room ...
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Iron-bearing Oxides, Silicate Glasses and Carbonates at Lower Mantle Pressures
... Earth's lower mantle occupies more than half of Earth's volume, and is expected to be composed primarily of bridgmanite, calcium silicate perovskite and iron-bearing periclase. Although it is suggested that ...
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A nuclear magnetic resonance investigation of the structure of some alkali silicate glasses
... The Tl values as the Na20 content in all the two component lithium glasses, silicate glass ceramics and alkali phosphosilicate two component.. The are systems conversion single of compon[r] ...
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1. Characteristic studies of erbium: nickel doped silicate glasses
... very low dimensions and are designed to have desired optical and electrical properties by doping transition metal ions and /or luminescence species in glasses. The sol gel technique is an excellent method to ...
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Thermal Conductivity of Lithium-Boro Silicate Glasses
... In pure metals the total conduction has been due to electrons and phonons, however, in poor metals, containing large amount of impurities, the lattice conductivity has been important. A Debye ’ s 1 theory of thermal ...
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In Situ Raman Measurements of Silicate Glasses during Vickers Indentation
... Figure 1 shows a schematic illustration of a self-made indenter for Raman measurements. The self-made indenter was composed of a Vickers tip, the load cell, the piezo- actuator, and the XYZ-stage. The indenter tip was ...
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Investigation of thermal tempering in bulk metallic glasses
... Chapter 3 describes an analytical-experimental study of a copper-mold-cast BMG plate, the same geometry employed for silicate glasses. On the experimental side, it is demon- strated for the first time that ...
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Ultrahigh-pressure acoustic wave velocities of SiO2-Al2O3 glasses up to 200 GPa
... in glasses and melts and occur discontinu- ously in crystalline materials ...between silicate glasses and silicate melts works well as a model of their structural or density changes with ...
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Microstructure, mechanical and thermal properties of chalcogenide glasses and glass-ceramics based on Se-As-Ge system nucleated by Sn
... these glasses have the amorphous ...the glasses. XRD patterns of glasses display two broad bands as given in Figure1 which represents undeveloped sprouts that are likely to crystallize with the ...
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Structural characterization of sulphate borophosphate glasses containing calcium oxide
... perfoming glasses have lead to current investigating of the sturctural properties of glasses for optimum ...borophosphate glasses of different compositions were prepared using melt quenching ...
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Effects of field of view and stereo graphics on memory in immersive command and control
... 3.2 Procedures 3.2.1 Design Participants were randomly assigned to one of five conditions 4 walls stereo, 4 walls glasses mono, 4 walls no glasses mono, 3 walls no glasses mono and 1 wal[r] ...
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Study on the role of manganese ions on physical and structural properties of alumino-phosphate glasses by means of spectroscopic analysis
... Manganese, is a class of transition metal, ion is an interesting erent valence states in different glass matrices, for example as Mn 3+ in borate glass with octahedral coordination whereas in silicate and germanate ...
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