摘要 |
PROBLEM TO BE SOLVED: To provide glass having a high Young's modulus. SOLUTION: This glass composition has composition ranges of main components being 45.5 wt.%<=SiO2<=49.5 wt.%, 20.5 wt.%<=Al2O3<=23.5 wt.%, 10 wt.%<=MgO<=30 wt.%, and 5 wt.%<=TiO2<=20 wt.%.
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