Speaker
Description
Advanced ceramics (made up of oxides, nitrate compounds, carbides and non-silicate glass) present interesting properties, among others, as thermal insulation, lightness, high specific surface area, thermal shock resistance, mechanical strength or chemical inertness. Consequently, the development of ceramics for high temperature applications has become an emerging area of research. These ceramics must exhibit certain properties including resistance to creep deformation at interfaces, chemical stability, oxidation resistance, low volatility, thermal shock resistance and sufficient toughness at ambient temperature.
Solar-driven thermochemical processes and other high temperature solar applications require a high concentration of solar radiation, often exceeding 100 W/cm2. For this purpose, advanced ceramics are a good choice, since these materials are capable to withstand temperatures up to 1400 ⁰C or higher, while remaining stable against damaging morphological changes. Moreover, for this use, selected materials should be capable of supporting high flux densities and temperatures for thousands of cycles, as these systems operate daily with start-up and shut-down procedures.
In the present work, different materials have been studied to be used in solar reactors, determining their properties at different preparation conditions and, later, ongoing ageing mechanisms to analyse the changes in their mechanical, thermal and optical properties
The work has been carried out thanks to the project "Ceramic materials for energy applications-CERAMITECH", funded by the Valencian Institute for Business Competitiveness (IVACE).
References
1.T. A. Otitoju, P. U. Okoye, G. Chen, Y. Li, M. O. Okoye, S. Li. Advanced ceramic components: Materials, fabrication, and applications. Journal of Industrial and Engineering Chemistry 85 (2020) 34–65. https://doi.org/10.1016/j.jiec.2020.02.002
2.A. Vidal, D. Martinez. An ageing protocol for testing high temperature solar materials for thermochemical applications. Solar Energy Materials & Solar Cells 212 (2020) 110572. https://doi.org/10.1016/j.solmat.2020.110572
| Speaker Country | Spain |
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