Fraunhofer Institute for Mechanics of Materials IWMAs part of the project, an innovative method was developed to improve DLC coatings on elastomers through targeted laser structuring in order to achieve greater resistance to fragmentation and delamination. This technology reduces friction and significantly extends the service life of highly stressed polymer components such as plain bearings and seals.
Laser-structured and DLC-coated dynamic elastomer seals for the energy transition
Completed research project
Project description
The aim of the project “Laser-structured and DLC-coated dynamic elastomer seals” (HoLeiEla) was to develop an innovative method for improving DLC (diamond-like carbon) coatings on elastomers. Through targeted laser structuring of the elastomer substrates, a predefined morphology of the DLC coating was achieved, which ensures higher resistance to fragmentation and delamination under load. This technology makes it possible to reduce friction and extend the service life of highly stressed polymer components such as plain bearings and elastomer seals.
Steps and results:
1. Structuring of the elastomer substrates: Precise laser structuring of the surface creates a specific morphology that prevents fragmentation of the DLC layer.
2. DLC coating: The coated elastomers show improved resistance to delamination, resulting in longer service life and lower friction.
3. Industrial applications: The combination of laser structuring and DLC coating enables the production of flexible and low-friction elastomer components that can be used in various industrial applications, including plain bearings and seals.
Transfer of project results to the following Fraunhofer IWM R&D services for companies:
- Development of Elastomer coatings for longer service life and lower friction
