Absorption of coloring impurities in FK-14 glass

Translated from Steklo i Keramika, No. 2, pp. 10–11, February, 1992.     

Absorption spectra of coloring impurities in glass from a synthetic batch

Translated from Steklo i Keramika, No. 1, pp. 14–15, January, 1992.     

Effect of coloring impurities on the absorption in neodymium phosphate laser glass at a lasing wavelength

This paper reports on the results of the investigation of KGSS 0180/35 neodymium phosphate glasses produced on an industrial scale under oxidizing conditions and glasses prepared under experimental conditions in which iron and copper in small amounts rather than neodymium are introduced into the glass composition. The experimental glasses are synthesized by varying the redox conditions of melting. The oxidation states of transition metal impurities (Cu, Fe, V, Ni, Co) and the nonactive absorption coefficients of glasses at the lasing wavelength are determined. It is revealed that the main contribution to the nonactive absorption coefficient of the KGSS 0180/35 glass produced on an industrial scale is made by Cu²⁺ ions at a concentration higher than 0.5 ppm. At a lower copper concentrations, the total contribution of Fe²⁺, V⁴⁺, Ni²⁺, and Co²⁺ impurity ions to the nonactive absorption coefficient is comparable to that of Cu²⁺ ions. It is demonstrated that a decrease in the concentration of coloring impurities in glasses and the optimization of redox conditions of melting make it possible to prepare phosphate laser glasses with a nonactive absorption coefficient of the order of 0.001 cm^?1. In terms of the nonactive absorption coefficient, these glasses are on a par with similar glasses of foreign manufacture and satisfy the requirements imposed on glasses by developers of high-power high-energy laser facilities.     

Certain aspects of sheet glass coloring

The Saratov Institute of Glass uses local raw materials with substantial deviations from standard parameters in production of thermally polished light- and heat-absorbing glass. A block system for prediction and fine correction of the color and light characteristics of tinted glass is developed in terms of using local material resources (sand, chalk, and dolomite).     

分光光度法测定去离子水中微量杂质

详细描述了用分光光度计测定去离子水中的微量Ca^2 Mg^2 ,Fe^3 ,NaCl和SiO2等杂质的分析方法,利用该方法对去离子水进行测定,证明该检测方法简便、快速、实用,能够满足生产需要;通过大量的实验数据,总结出规律,降低了分析频率,减少了生产成本。     

Spectral absorption of coloring agents in lead phosphate glass

Translated from Steklo i Keramika, No. 1, pp. 6–7, January, 1993.     

Formation of coloring complexes in glass colored with cerium and titanium oxides

The valence state of cerium and titanium ions in barium-strontium aluminosilicate glass with a different ratio of cerium and titanium oxides was investigated and the possible composition of the cerium-titanium complexes formed in silicate glass was analyzed. It was found that an active separate reaction between cerium and titanium oxides with the appearance of complex color centers takes place in synthesis of the glass. It is hypothesized that color centers primarily form between tetravalent cerium and tetravalent titanium in glass-forming melts.     

乳化油在玻璃熔窑上使用的可行性探讨

1前言 目前,随着经济日益增长,能源的紧缺状况越来越明显,经济不断发展与能源严重不足之间的矛盾越来越加剧.这就要求我们做到既要发展,又要节能.虽然以重渣油为燃料,对环境污染比较轻,但是由于石油供不应求的情况,国家限制为数不多的大中企业使用.正常情况下,重油的热值是39 710～40 954 kJ/kg,每千克玻璃液需消耗7 600kJ热量,对于日熔化量为500 t热效率为30%的熔窑来说,消耗量相当大.