Patent ID: 8758675

Claim:
A method for fabricating an open-porous metal foam body, the method comprising: applying a liquid binding agent to an open-porous base foam body that is made of a nickel base alloy; after applying the liquid bindinq agent to the open-porous base foam body, depositing a powder mixture of a powdery nickel base alloy and a powdery organic component upon the open-porous base foam body, wherein the powdery organic component has a phase transition temperature, wherein deposition occurs at a temperature below the phase transition temperature, and wherein the powdery nickel base alloy includes at least 15 wt % chromium; and subsequent to the deposition, conducting a thermal treatment at a temperature between 1,200° C. and 1,250° C. in an inert or reducing atmosphere, wherein the thermal treatment (a) expels the liquid binding agent and the powdery organic component, (b) sinters a first portion of the powdery nickel base alloy, and (c) connects, in a material-fit manner, a second portion of the powdery nickel base alloy to the open-porous base foam body via sintering bridges, wherein at least 20% of particles in the second portion of the powdery nickel base alloy maintain their particle shape during the thermal treatment, and wherein a nickel component of the powdery nickel base alloy is smaller than a nickel component of the nickel base alloy.