کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1486498 | 1510557 | 2006 | 5 صفحه PDF | دانلود رایگان |
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 °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%).
Journal: Journal of Non-Crystalline Solids - Volume 352, Issues 6–7, 15 May 2006, Pages 539–543