ZUSAMMENSETZUNG FÜR GLAS, ALKALIALUMINOSILIKATGLAS UND HERSTELLUNGSVERFAHREN DAFÜR SOWIE ANWENDUNGEN DAVON

摘要

The present invention discloses a composition for glass, an alkaline-earth aluminosilicate glass, a preparation method and an application thereof. Based on the total number of moles of the components, on an oxide basis, the composition contains 68-73 mol% SiO₂, 11.5-15 mol% Al₂O₃, 2-6 mol% MgO, 2.5-7.5 mol% CaO, 0-3 mol% SrO, 2-7 mol% BaO, 0-4 mol% ZnO, and 0.05-1.5 mol% TiO₂. The glass has higher strain point, higher Young's modulus, higher specific modulus, higher Vickers hardness, higher chemical stability, higher refractivity, higher stability of glass formation, lower forming temperature, lower melting temperature, lower thermal expansion coefficient, lower surface tension, lower density, and lower glass manufacturing difficulty.