| 摘要 |
A porous ceramic layer system is provided having two layers of porous layers with a tightly controlled and matched porosity. The layer system has a substrate, a metallic bonding layer on the substrate, an inner ceramic layer having a porosity, an outer ceramic layer on the inner ceramic layer, with a two-layered NiCoCrAlX layer as the metallic bonding layer, with a lower NiCoCrAlY layer, in which the content of chromium (Cr) in the lower NiCoCrAlY layer is less than the content of chromium (Cr) in the outer NiCoCrAlY layer. |
