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POWER ENGINEERING // POWER GENERATION // POWER TRANSPORT // STATIONARY ENERGY STORAGE // MOBILE ENERGY STORAGE // RENEWABLE ENERGY
A core area in general power engineering concerns the generation, transport and storage of electric power. A central objective is to realize engineering and technologies that minimize resource consumption and the environmental impact while maximizing efficiency.
Products made of monolithic ceramic materials and ceramic coatings on oxide and non-oxide basis can often be found in areas of energy-efficient plants and machinery exposed to high mechanical, chemical and thermal stresses. There they generally make an important and sometimes crucial contribution to achieving the above-mentioned objective.
For example, they are used as ceramic coatings in the hot gas area of stationary gas turbines, as cation-conducting ceramics in low-loss high-power batteries or as corrosion-resistant dielectrics in molten carbonate fuel cells.
The materials used must meet high requirements, as the following selection shows:
- Mechanical stability
- Wear resistance
- Corrosion resistance largely to gases and melts
- Electrical insulation when used as a dielectric
- High conductivity for anions or cations when used as electrolyte
- Hard and soft magnetic properties
- High-temperature strength
- Reliable adhesion of coatings in high-temperature ranges
- Thermal insulation
- Thermal shock resistance
- Creep resistance at high temperature
- Ability to form joints with long-term stability
The ceramic materials used for such applications can be adapted to the specific application conditions based on modification of their chemical composition and microstructure.
Today a broad spectrum of monolithic oxide and non-oxide ceramics, oxide and non-oxide ceramic composites, ceramic coating and magnetoceramics to superconducting ceramic coatings is available or at least under sustainable development, some at an advanced stage.
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