| 摘要 |
PROBLEM TO BE SOLVED: To provide a glass exhibiting a high Young's modulus. SOLUTION: This glass composition is provided by setting ranges of compositions of main components on >=35 wt.% and <=50 wt.% SiO2, >=5 wt.% and <=20 wt.% Al2O3, >=9 wt.% and <=25 wt.% MgO, >=0.1 wt.% and <=12 wt.% TiO2, and >=11 wt.% and <=22 wt.% ZnO.
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