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High-iron ferric glass

机译:高铁铁玻璃

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iron commonly exists as an equilibrium mixture of ferrous ions, Fe2+, and ferric ions, Fe3+ in glass. Fe3+ is a strong absorber of ultraviolet light and imparts a yellow color to glass, while Fe2+ has an absorption band in the near-infrared, resulting in a blue coloration. This study synthesized soda-lime-silicate glasses with high iron contents (1-3 wt%) in which virtually all the iron was fully oxidized to the ferric redox state, resulting in a UV-absorbing, yellow glass. The effectiveness of three common oxidizing agents (cerium, manganese, and antimony) to react with Fe2+ in these high-iron glasses was determined as a function of the processing temperature (1200-1400 degrees C). Cerium was the best oxidizer at the highest iron contents (3 wt%), while manganese was more effective at the lowest iron contents (1 wt%). (c) 2006 Elsevier B.V. All rights reserved.
机译:铁通常以亚铁离子Fe2 +和铁离子Fe3 +的平衡混合物形式存在于玻璃中。 Fe 3+是紫外线的强吸收剂,使玻璃具有黄色,而Fe 2+在近红外具有吸收带,从而导致蓝色。这项研究合成了具有高铁含量(1-3重量%)的钠钙硅酸盐玻璃,其中几乎所有铁都被完全氧化为三氧化二铁状态,从而产生了可吸收紫外线的黄色玻璃。确定了这些高铁玻璃中三种常见氧化剂(铈,锰和锑)与Fe2 +反应的效率与处理温度(1200-1400摄氏度)的关系。铈在铁含量最高(3 wt%)时是最好的氧化剂,而锰在铁含量最低(1 wt%)时更有效。 (c)2006 Elsevier B.V.保留所有权利。

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