Novel method of glasses SiO2-GeO2 preparation monitoring
نویسندگان
چکیده
منابع مشابه
Dispersion in GeO2-SiO2 glasses.
Germania glass was prepared from high purity GeO2 powder. Refractive-index dispersion was used to calculate material dispersion and to provide a model for representing the dispersion of GeO2-SiO2 glasses. The wavelength of zero material dispersion is found to be in agreement with theoretical calculations. Modal propagation is modeled for a GeO2 core-silica clad fiber. Results support compositio...
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The role of Ge02 in the Na20 B2O3 Ge02 Si02 quaternary system which presents a spinodal decomposition domain is studied. The physical properties of this system are compared to those of the system without Ge02. The leaching conditions of these glasses and the coordination of Ge are studied.
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In order to attain glasses with ultra dispersions properties, different heavy metal oxides were used. The desired glasses were obtained from the addition of high amounts of PbO and Bi2O3 to B2O3 based glasses. Refractive index measurements were carried out accurately at different wavelengths by the minimum angle of deviation in prisms method employing a spectrometer. Results indicated that, as ...
متن کاملThe Relationship between Structural and Optical Properties of GeO2-PbO Glasses
The structural and optical characterization of bulk GeO2-PbO glasses was the goal of this study. In this regard, six different (100-x)GeO2-xPbO (15<x<45) glasses were prepared by conventional melt quenching technique between two steel sheets. The produced samples were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) and UV-Vis s...
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Sol-gel derived GeO2-doped silica thin films (x)GeO2 :(12x)SiO2 with x 5 5 to 40 mol % were studied for heat-treatments from 500 to 1000°C. In the conventional single component sol-gel process, temperature is the process parameter that controls the porosity of the film. However, our results revealed that by varying Ge-doping, the film porosity, as determined by spectroscopic ellipsometry, can b...
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ژورنال
عنوان ژورنال: Russian Journal of General Chemistry
سال: 2013
ISSN: 1070-3632,1608-3350
DOI: 10.1134/s1070363213110261