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US 2013/0294818 A1Published application
Glass-ceramic joining material and use thereof
AssigneeSchott AG
InventorDieter Goedeke
Life of this patent
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Abstract
The glass-ceramic joining material, which is suitable for bonding or joining at low processing temperatures, especially less than 800° C., is composed of a BaO—SiO2—CaO—B2O3—Al2O3 system and has a coefficient of thermal expansion α(20-300)≧9.5·10−6 K−1.
Claims19
A glass-ceramic joining material having a coefficient of thermal expansion α(20-300)≧9.5·10−6 K−1, said glass-ceramic joining material comprising, in mol % based on oxide content:
- SiO2
- 3-<10
- B2O3
- 16-34
- Al2O3
- 7-15
- CaO
- 8-40
- BaO
- 25-38
- MgO
- 0-10
- ZrO2
- 0-5
- Y2O3
- 0-10.
13 more elements
Dependencies are inferred from the claim text.