Abstract

Purpose. Determine the effect of synthesis conditions As₂S₅ glass in its optical-refractometric (OR) properties.
Methods. The synthesis was carried out with glassy As₂S₅ elementary component cleanliness "OSCH" B-5 melt at different temperatures (Т₁=820 K; Т₂=1070 К; Т₃=1320 К) and cooling speeds (V₁=10^-2 K / s, V₂=1,5 K / s; V₃=1,5∙10² K / s). Dispersion of the refractive index determined using temperature refractometric system based on optical divisional heads ODG-10.
Results. The paper presents the results of a study of dispersion of the refractive index of the vitreous As₂S₅, obtained under different synthesis conditions. The values OP-quasi constant η_s, characteristic energy dispersion E_s and fate ionicity due to f in OP -scale agents for vitreous samples studied. Show that the value of the degree of ionicity f_i connections varies between 46% (synthesis conditions Т₁V₁) to 48% (synthesis conditions Т₁V₂).
Conclusion. The changes quasi constant η₂ concluded that the optimum temperature synthesis vitreous Аs₂S₅ temperature is Т₂ = 1070 K and the melt cooling rate V₂ = 1,5 K / s. From the analysis of experimental and theoretical data molar refraction shown that knowing the value of band gap E_g, density d, molecular weight μ enough to measure the refractive index n for some fixed wavelength λ, it will help with accuracy of ± 2% to calculate the value of n in field of transparency of the material

Keywords: synthesis, glassy, refraction, quasi constants, characteristic energy

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