Modification of mechanical, electrical, thermal, chemical, optical, haptic, biological and other properties of light metals on an industrial scale.

Surface as a micro-composite material


Surface properties

METAKER® surface layer is a micro-composite whose properties are adjustable and combinable, e.g.:

- heat conducting, microstructured and extremely abrasion resistant (tribology)

- dielectric and heat conducting (electrical cooling, thermoelectrics)

- electrically conductive and abrasion resistant (electrical contacts)

- heat conductive, corrosion resistant and light reflecting (LED, IR measuring instruments)

- atomically adhering, microstructured and activated on the substrate (gluing, laminating)

- biocompatible, microstructured and bioactivated (medicine)

Thus, for example, the surface hardness of an aluminum component can be increased from 80 HV to 300-2,200 HV, a dielectricity up to 660 V and at the same time a thermal conductivity of 210 W/mK can be achieved.

The light metals with METAKER® surfaces can be made of other materials such as steel, stainless steel, brass, bronze, ceramics and / or other environmentally harmful surface processes such as pickling, anodizing, chromating, phosphating, chemical nickel, varnishing, inter alia, substitute.

The range of possible surface properties and their combinations that can be achieved on light metals is so great that it can not be considered here.

The technical and economic potentials are enormous and can include, for example, the following applications:


- wear resistance

- cyclic load capacity

- stiction

- stiffening

- oil storage

- electrical breakdown strength

- electrical insulation

- electric conductivity

- electrical capacity

- electrostatic sensitivity

- electromagnetic compatibility

- light absorption

- light reflection


- thermal resistance

- thermal insulation

- heat conduction

- heat radiation

- thermoelectrics

- forced convection

- fluid dynamic boundary layers

- corrosion resistance

- low temperature catalysis

- antimicrobial and bioactive layers

- bonding

- painting

- impregnation





Below you will only find general information about selected properties. The information relevant to your application is available on request.




Full-surface, homogeneous or partial, deliberately inhomogeneous modification of surface layers in the range of 2 to 200 μm.



Under certain conditions, the layers can be developed with very good ductility for e.g. cylinder liners in internal combustion engines. Modified sheets, aluminum mesh or foils can be bent, for example, with radii larger than the wall thickness.



The microhardness is heterogeneous and may have a hardness gradient of 100 to 2,200 HV. It is always to be determined as an average of several measurements.


Chemical resistance

Due to the adjustable chemical composition or in combination with other methods, the surfaces can be adjusted to an extreme chemical resistance.


Heat resistance

The working temperatures of the surface are limited by the melting temperature of the substrate. For a short time, thermal shocks up to 1,000°C - 2,000°C can be sustained.


Thermal conductivity

Depending on the application, the surfaces can be used as highly thermally conductive (e.g. engines or electronics) or as heat-insulating (e.g. heavily used tribological applications).


Electrical Properties

The layers can be designed both as electrically conductive, as well as electrically insulating.



The coating is very even. The most complex geometries with corners, sharp edges, channels, reliefs, blind holes, etc. can be modified very homogeneously.


Impregnation / Porosity

Both the porosity of the surfaces, as well as the pore sizes are variable within a certain range. Excellent absorbency and atomic adhesion to the substrate make the thin layers a better alternative to anodized adhesive substrates for subsequent painting or bonding.


LLight absorption / Light reflection

A light absorption of up to 94% allows use in high-quality optics and electronics. A light reflection of up to 80%, good heat resistance and thermal conductivity bring advantages for modern lighting systems.


Aluminium thin layers

The thin aluminium layers applied to various substrates (e.g. steel) by means of a thin-film process can also be modified.


Hybrid Materials

Light metal components in water-resistant hybrid materials (e.g. aluminium + plastic) can be modified.


Decorative properties

Matt, non-reflecting, optically demanding, durable, chemically resistant, colored surfaces are ideally suited for decorative applications.


Mechanical machining

The surfaces can be mechanically processed conventionally. The modified workpiece areas, which had to be changed as part of a change process, can be subsequently modified again.



For certain ratios of geometry, alloy, layer type and layer thickness, the modified surfaces can be used to stiffen thin-walled structures.




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