Universität Bayreuth - Lehrstuhl Keramische Werkstoffe

The research focus of the Chair of Ceramic Materials is in the field of ceramic matrix composites (CMC) and metal-organic precursors (polymer-derived ceramics, PDC).

The work is divided into three working groups:

• Precursor ceramics
• Powder technology
• Composite ceramics

The entire production and development chain from material synthesis to the production of model components is dealt with in the production techniques. The processing techniques are used to produce the following materials:

• Fracture-resistant structural ceramics made of C/SiC, SiC/SiC and OFC (Oxide Fiber Composite)
• Porous ceramics
• Layers for tribological and corrosive applications (also: Thermal barrier coatings)
• Composite materials with fiber and particle reinforcement as well as gradient materials
• SiCN fibers

The development work and projects include both basic and application-oriented research.

The Chair of Ceramic Materials Engineering (CME) at the University of Bayreuth focuses on the development of new ceramic materials and components.

The ceramic materials with improved thermomechanical, physical, chemical and tribological properties are produced using powder ceramic techniques, through the pyrolysis of liquid and solid organometallic compounds or through reactive melt infiltration (e.g. liquid silicification). In the production methods, the process engineering implementation takes place in a closed chain from material synthesis to the material to the component. Material development, process engineering, in-process characterization, microstructure and microstructure investigations as well as the design of components are carried out at the chair in modern laboratory facilities and by a highly motivated team.

1. Development of ceramic materials and coatings
2. Development of manufacturing processes for ceramic materials
3. Characterization of ceramic materials and their starting raw materials

Precursor Ceramics Working Group

1. Development of SiCN precursors
2. Polymeric layers
3. Ceramic layers
4. Ceramic SiCN-fibers
5. Porous catalytically active ceramics
6. Development of novel refractory metal-ceramic composites
7. Development of hybrid polymers of silazanes with organic polymers such as PC, PS, PAN
8. Alternative pyrolysis methods using plasma and laser

Powder technology working group

1. Granulation
2. Oxide ceramic composites (OFC)
3. Characterization

Composite Ceramics Working Group

1. Damage-tolerant composite ceramics
2. Friction materials - brake discs and brake pads made of ceramic
3. Liquid-phase-based infiltration processes
4. Fiber coatings and fiber bundle impregnations
5. Duromers & thermoplastic matrices
6. Biogenic SiSiC ceramics
7. Metal-ceramic hybrids
8. Microstructure elucidation