| 摘要 |
The invention relates to a hermetic glass composition which can be thermally devitrificated. The invention is characterized in that it comprises a base matrix consisting of at least the five following oxides: 0.5 - 85 wt.% Bi2O3, 0.5 - 25 wt.% ZnO, 0,5- 5 wt.% SrO, 0.5 - 10 wt.% SiO2 and 0.5 - 20 wt.% B2O3. The invention can be used to seal substrates, as a covering. |
