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Coloration Mechanism of Fe Ions in β-Quartz s.s. Glass-Ceramics with TiO2 and ZrO2 as Nucleation Agents
Frontiers in Materials
Transparent β-quartz s.s. glass-ceramics in Li2O-Al2O3-SiO2 system have an undesirable brown color owing to Fe ions as a contaminant, whereas the mother glass normally has a clear appearance. Elucidation of the coloration mechanism during crystallization is important for industry to develop highly transparent materials. In this study, the mother glass contained SiO2, Al2O3, and Li2O as its principal constituents and TiO2 and ZrO2 as nucleation agents. The amount of contaminant Fe ions in thedoi:10.3389/fmats.2017.00007 fatcat:y6wa6wly2zewzorokixres4n6u