Structuring of nanoporous nickel-based superalloy membranes via laser etching

Structures with a very fine and regular porosity enable inventions or further developments of a multitude of components like substrate applications in fuel cell technology or catalytic reaction spaces in chemical reactors. Here we show a novel method for structuring nanoporous metal membranes to generate one-component modules with multi-functionality. For this purpose a combination of the laser etching and electrochemical-etching techniques is applied to directional coarsened nickel-based superalloys.