| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: glass contains SiO2, Na2O, B2O3, CaO, MgO, Al2O3, Cu2O, K2O, Cl, SrO and ZrO2, at the following component ratio, mass %: SiO2 - 70-74; Na2O - 2-4; B2O3 - 4-6; CaO - 2-4; MgO - 2-4; Al2O3 - 3-4.5; Cu2O - 0.5-1; K2O - 2-4; Cl' - 0.1-0.2; SrO - 0.8-1.8, ZrO2 - 4.5-5.5. ^ EFFECT: higher thermal stability of glass. ^ 1 tbl |
