| 摘要 |
A low-expansion glass ceramic plate, in which a black coating is applied directly or indirectly to at least some areas of at least one side of the plate and the coating contains precious metal. In order to produce a glass ceramic plate of this type that is opaque, while simultaneously retaining a sufficient degree of its thermal stability, according to this invention, the precious metal content in the coating is≧50 wt. %, the bismuth oxide content in the coating is at most 20 wt. %, and the layer thickness of the coating is at least 200 nm. |
