| 摘要 |
FIELD: technology of silicates, glass industry. ^ SUBSTANCE: invention relates to glass compositions used for making package dishware. Proposed glass comprises the following components, wt.-%: SiO2, 68.0-72.0; MgO, 15.0-16.5; CaO, 2.3-3.8; components of the group FeO and FeO3, 0.1-0.2; ZrO2, 0.5-1.0, and B2O3, 8.0-11.0. Invention provides enhancing thermal stability and decreasing coefficient of thermal expansion of glass. ^ EFFECT: improved and valuable property of glass. ^ 1 tbl |
