High temperature layered system for heat dissipation and method for making it

摘要

Layer system comprises a substrate (4) covered with a porous layer (10) in which the pore walls (22) adjacent to the substrate surface have a greater cross-sectional area than those not adjacent to the substrate surface. Independent claims are also included for: (1) producing the layer system by producing the porous layer in several steps; (2) producing the layer system by producing the porous layer together with the substrate.