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Institute of Energy and Climate Research (IEK)

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Ceramic Materials

In all applications the mechanical properties of ceramic materials are important to evaluate possible loading states and to warrant a long term reliable function. The investigations concentrate on ceramic materials for modern power plant systems, high temperature solid oxide fuel cells (SOFC) and refractory applications. In this application focused analysis’s the mechanical limits with respect to failure and failure probabilities are evaluated, where special consideration is given to the envisaged operation temperature and environmental conditions. Besides determination of the basic properties like fracture strength, elastic and creep deformation, detailed in-situ and post-test analysis of the failure mechanisms are carried out, including observations of fracture and deformation mechanisms with optical and electron microscopic methods to enhance the understanding of the correlation of mechanics and microstructure.

Ongoing projects

Schema eines Indentationstest

Mechanical characterization of electrochemical storage materials

The interest in electrochemical storage devices has increased in last years, especially in the case of batteries.

More: Mechanical characterization of electrochemical storage materials …

Specimen after the drilling by fiber laser (trepanation mode)

Mechanical testing of laser drilled Thermal Barrier Coating (TBC) specimens

A joint project for gas turbine components with longer lifetimes

More: Mechanical testing of laser drilled Thermal Barrier Coating (TBC) specimens …

Rissausbreitung an einem Mikroindentereindruck in La0.58Sr0.4Co0.2Fe0.8O3-d

Mechanical behavior of mixed ionic electronic conducting membrane systems

The IEK-2 works on the characterization of mixed conducting ceramic membrane materials within the framework of national and European projects.

More: Mechanical behavior of mixed ionic electronic conducting membrane systems …

Viscose deformation of glass-ceramics sealant

Materials and composites for solid oxide fuel cells

In the last decades the solid oxide fuel cells developed to a technology that reached the potential for commercial application.

More: Materials and composites for solid oxide fuel cells …

Enclosed research projects

Thermo-mechanical Characterization of Novel Emission-Reduced Refractories

Development of novel, carbon-reduced and carbon-free refractory materials. More: Thermo-mechanical Characterization of Novel Emission-Reduced Refractories …

Optimization of Thermal-Barrier-Coatings

Influence of bond coat and Al2O3-layer creep strength on the damage of thermal barrier coatings at thermocyclic load. More: Optimization of Thermal-Barrier-Coatings …

Ceramic thermal barrier coatings for gas turbine blades

Improvement of the efficiency of stationary gas turbines and jet engines by application of thermal barrier coatings (TBCs). More: Ceramic thermal barrier coatings for gas turbine blades …

Transparent ceramics

Advanced transparent ceramics offer a high chemical and thermal stability. More: Transparent ceramics …

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