Metallic surface of a body, method for producing a structured metallic surface of a body and the use thereof

A metallic surface of a body, comprising:

• an intermetallic compound;
• and
• surface regions that include one of a metal and a metal alloy that is different from the intermetallic compound, wherein:
• in the case of one of islands and regions, the surface regions have a lateral extension of 1 μm to 20 μm, and
• in the case of lineal channels, the surface regions have a width of 10 μm to 50 μm.

A method for preparing a structured metallic surface of a body, comprising:

• generating, on one of a first metal layer and a first intermetallic layer, one of a second metal layer and a second intermetallic layer, the one of the second metal layer and the second intermetallic layer differing from the one of the first metal layer and the first intermetallic layer;
• and
• heating region by region in a location of at least the one of the second metal layer and the second intermetallic layer in such a way that in the location an intermetallic compound is formed using a material of the one of the first intermetallic layer and the first metal layer and a material of the one of the second metal layer and the second intermetallic layer, into which surface regions are one of sunk in and embedded, the surface regions being made of the material of the one of the second metal aver and the second intermetallic layer, wherein:
• the heating includes causing an optical imaging device to project briefly laser light of high intensity onto specified regions of the metallic surface, the intermetallic compound being created in regions of the metallic surface exposed to the laser light.

A method for preparing a structured metallic surface of a body, comprising:

• generating, on one of a first metal layer and a first intermetallic layer, one of a second metal layer and a second intermetallic layer, the one of the second metal layer and the second intermetallic layer differing from the one of the first metal layer and the first intermetallic layer;
• and
• heating region by region in a location of at least the one of the second metal layer and the second intermetallic layer in such a way that in the location an intermetallic compound is formed using a material of the one of the first intermetallic layer and the first metal layer and a material of the one of the second metal layer and the second intermetallic layer, into which surface regions are one of sunk in and embedded, the surface regions being made of the material of the one of the second metal layer and the second intermetallic layer, wherein:
• the surface regions are one of comparatively little and not heated up compared to neighboring regions taken up by the intermetallic compound.

A method for preparing a structured metallic surface of a body, comprising:

• generating, on one of a first metal layer and a first intermetallic layer, one of a second metal layer and a second intermetallic layer, the one of the second metal layer and the second intermetallic layer differing from the one of the first metal layer and the first intermetallic layer;
• heating region by region in a location of at least the one of the second metal layer and the second intermetallic layer in such a way that in the location an intermetallic compound is formed using a material of the one of the first intermetallic layer and the first metal layer and a material of the one of the second metal layer and the second intermetallic layer, into which surface regions are one of sunk in and embedded, the surface regions being made of the material of the one of the second metal layer and the second intermetallic layer;
• and
• performing a specified local heating of the metallic surface using an imaging unit with the aid of a laser interference method.