| 摘要 |
PROBLEM TO BE SOLVED: To provide a LiO-AlO-SiOcrystallized glass in which SnOis used as a clarifier alternative to AsOand SbO, and yellow coloration caused by FeO, TiOand the like is inhibited.SOLUTION: A crystallized glass has a glass composition comprising, by mass%, SiO55-75%, AlO15-25%, LiO 2-5%, NaO 0-1%, KO 0-1%, MgO 0-3%, BaO 0.8% or more and less than 1.5%, ZnO 0% or more and less than 0.6%, TiO1-3%, ZrO0.5-2.5%, SnO0.01-1%, and FeO0.001-0.05%, is free from PO, AsO, and SbO, where TiO/ZrOis 1.2-2.6 by mol%.SELECTED DRAWING: None |
