Multilayer multifunctional advanced coatings for receivers of concentrated solar power plants

The extending market of concentrated solar power plants requires high-temperature materials for solar surface receivers that would ideally heat an air coolant beyond 1300 K. This work presents investigation on high-temperature alloys with ceramic coatings (AlN or SiC/AlN stacking) to combine the pro...

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Bibliographic Details
Published in:MRS communications 2019-12, Vol.9 (4), p.1193-1199
Main Authors: Charpentier, L., Chen, D., Colas, J., Mercier, F., Pons, M., Pique, D., Giusti, G., Sans, L. J., Balat-Pichelin, M.
Format: Article
Language:English
Subjects:
Absorptivity
Alloys
Aluminum
Behavior
Biomaterials
Carbon
Ceramic coatings
Characterization and Evaluation of Materials
Chemical vapor deposition
Composite materials
Creep strength
Efficiency
Engineering Sciences
Experiments
Heat resistant alloys
High temperature
Machinability
Materials
Materials Engineering
Materials Science
Multilayers
Nanotechnology
Optical properties
Oxidation
Oxidation resistance
Polymer Sciences
Power plants
Reaction kinetics
Receivers
Research Letter
Silicon carbide
Solar energy
Solar surface
Substrates
Thermal expansion
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Summary:The extending market of concentrated solar power plants requires high-temperature materials for solar surface receivers that would ideally heat an air coolant beyond 1300 K. This work presents investigation on high-temperature alloys with ceramic coatings (AlN or SiC/AlN stacking) to combine the properties of the substrate (creep resistance, machinability) and coating (slow oxidation kinetics, high solar absorptivity). The first results showed that high-temperature oxidation resistance and optical properties of metallic alloys were improved by the different coatings. However, the fast thermal shocks led to high stress levels not compatible due to the differences in thermal expansion coefficients.
ISSN:2159-6859
2159-6867
DOI:10.1557/mrc.2019.130