innovative laser technologies

In many cases innovative energy technologies require processes in the high-temperature range (more than 800 ° C). This leads to special demands on the materials and components to be used. Therefore, for more than 15 years, the scientists of this group have been developing and modifying laser technologies that enable the use of different materials under conditions of high temperature and special environmental conditions. For this purpose laser-based technologies for joining, for coatings and for surface structuring are developed and applied.

For decommissioning of nuclear power plants, the development of resource-saving technologies is crucial. Laser-based technologies can make an important contribution to that. The scientists therefore work on technologies that represent efficient alternatives to conventional methods.

The main points of research are:

• Development and testing of laser-based soldering technologies for high-temperature-resistant joining of ceramic-ceramic or ceramic-metal compounds. Advantageous are the special features of the process, the local energy input and the short process times.
• Development of high temperature solders for use in special environmental conditions. The development includes the group of active metallic solders and glass ceramic solders.
• Development of a laser-based coating technology (Pulsed Laser Deposition, PLD) for the production of ultra-dense, chemically precisely defined ceramic coatings. These can be used, for example, for the long-term stable, safe inclusion of radioactive fission products and can serve to protect surfaces against corrosion and abrasion.
• Laser-based structuring of ceramic surfaces to increase the specific surface area and / or to set special surface properties.
• Development and testing of innovative methods for the laser-based decontamination of radioactively or chemically toxic contaminated surfaces. These processes represent a personnel- and resource-saving alternative to conventional, mechanical decontamination technologies.
• Laser-based cleaning of various surfaces, for example removal of oxide layers.

The research group has a state-of-the-art laboratory equipped with high-performance lasers of various wavelengths and operating modes, as well as the corresponding peripheral equipment.

Student Research Projects

Current tasks of the Chair for Hydrogen and Nuclear Energy can be found here.

Respective Employees

Test facilities

• High Power Laser Laboratory

Projects

Photo Material