| 摘要 |
The invention relates to a borosilicate glass containing zinc oxide, which has the following composition (oxide-based in wt. %): 58-67 % SiO2, 1-5 % B2O3, 0-5 % Al2O3, 8-17 % Na2O, 0-12 % K2O, 3-12 % MgO, 0-12 % CaO, 2-8 % ZnO, 1-5 % TiO2. The glass is particularly suitable for use as a hard disk substrate.
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