| 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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