| 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%, SiO: 55-75%, AlO: 15-25%, LiO: 2-5%, NaO: 0-1%, KO: 0-1%, MgO: 0-3%, BaO: 0.1-2%, ZnO: 0-3%, TiO: 0.5-3%, ZrO: 0.1-3%, PO: 0.1-0.9%, SnO: 0.01-0.5%, and FeO: 0.001-0.05%, and is free from AsOand SbO.SELECTED DRAWING: None |
