Thermo-physical properties of as deposited and aged thermal barrier coatings (TBC) for gas turbines: State-of-the art and advanced TBCs
| Autor: | Stefano Capelli, S. Marchionna, Alessandro Moscatelli, Werner Stamm, Daniel Emil Mack, Marco Merlini, A. Famengo, Stefano Concari, Stefano Boldrini, F. Cernuschi, Paolo Bison |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Flue gas Materials science Hydrogen chemistry.chemical_element TBC Pore morphology 02 engineering and technology Phase evolution Atmospheric temperature range 021001 nanoscience & nanotechnology Microstructure Thermal diffusivity 01 natural sciences Thermal barrier coating chemistry Sintering 0103 physical sciences Materials Chemistry Ceramics and Composites Composite material 0210 nano-technology Water vapor Syngas |
| Zdroj: | Journal of the European Ceramic Society 38 (2018): 3945–3961. doi:10.1016/j.jeurceramsoc.2018.04.044 info:cnr-pdr/source/autori:Cernuschi F.; Bison P.; Mack D.E.; Merlini M.; Boldrini S.; Marchionna S.; Capelli S.; Concari S.; Famengo A.; Moscatelli A.; Stamm W./titolo:Thermo-physical properties of as deposited and aged thermal barrier coatings (TBC) for gas turbines: State-of-the art and advanced TBCs/doi:10.1016%2Fj.jeurceramsoc.2018.04.044/rivista:Journal of the European Ceramic Society/anno:2018/pagina_da:3945/pagina_a:3961/intervallo_pagine:3945–3961/volume:38 |
| DOI: | 10.1016/j.jeurceramsoc.2018.04.044 |
| Popis: | In the perspective of fuelling the future generations of gas turbines by hydrogen rich syngas, the evaluation of the effect of a higher water vapour content into the flue gases on the TBC used, or potentially usable, is a need. For this purpose YPSZ APS TBC with two different microstructures have been exposed for 500 h at different temperatures in the range 1000 degrees C-1250 degrees C either in air and air + 20% vol. H2O. The comparison between the different testing conditions has been performed in terms of sintering kinetics and phase stability, as evaluated by thermal diffusivity measurements and Synchrotron X-Rays diffraction, respectively. Furthermore the characterisation of thermal properties of two innovative TBCs (GZO-YPSZ and YAG) potentially able to withstand the CMAS attack and erosive environments, respectively, has been carried out. No clear evidence of a different behaviour of TBC has been observed, at least in the considered aging time and temperature range. |
| Databáze: | OpenAIRE |
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