| 摘要 |
<p>Provided is an alkali-free glass, comprising, as a glass composition in terms of mass%, 58 to 70% of SiO 2 , 15.5 to 20% of Al 2 O 3 , 0 to 1% of B 2 O 3 , 0 to 5% of MgO, 3.5 to 16% of CaO, 0.5 to 6.5% of SrO, and 5 to 15% of BaO, being substantially free of alkali metal oxides, and having a strain point of more than 725°C.</p> |
