High-velocity plasma spray process using hybrid SiO2 + ZrO2 precursor for deposition of environmental barrier coatings
| Autor: | Tiago Moreira Bastos Campos, Gilberto Petraconi, A.M. Essiptchouk, Felipe Rocha Caliari, F.S. Miranda, Rodrigo Sávio Pessoa, D.M.G. Leite |
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| Přispěvatelé: | Instituto Tecnológico de Aeronáutica – ITA/DCTA, Universidade Estadual Paulista (Unesp), Center for Thermal spray Research at Stony Brook University |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Atmospheric-pressure plasma Context (language use) 02 engineering and technology Substrate (electronics) 01 natural sciences symbols.namesake High-velocity plasma spray 0103 physical sciences Materials Chemistry Deposition (phase transition) Cubic zirconia Environmental barrier coating Yttria-stabilized zirconia Thermal spraying 010302 applied physics Silicon oxide Surfaces and Interfaces General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Surfaces Coatings and Films Chemical engineering symbols 0210 nano-technology Raman spectroscopy Material characterization |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2021-06-25T10:13:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-12-25 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) The demand for the development of more efficient, low emission, and high-performance aircraft have required new methods to obtain lighter materials, with higher temperature resistance and chemical stability. For these purposes, Environmental Barrier Coatings (EBC) are largely studied. EBC's are commonly obtained through Atmospheric Plasma Spray, where the process parameters, as well as the precursor characteristics, and its interaction with the plasma jet influence the properties of the deposited material. In this context, this work aims to deposit EBC on C/C composites through the high-velocity plasma spray (HVPS) using a new concept of hybrid SiO2 + ZrO2 precursor. For this, a solid load of 7% yttria-stabilized zirconia (7YSZ) is mixed in a Si(OH4) solution with concentrations of 10, 20, and 30 g/L. From Raman and XRD analyses, ZrSiO4 and SiC were identified, its formations occur due to the reactions of SiO2 with ZrO2 (7YSZ) and the SiO2 precursor with C/C substrate. Finally, we demonstrate the versatility of the HVPS process using a hybrid precursor, capable of producing micro/nanostructured EBC coatings. Laboratório de Plasmas e Processos - LPP Instituto Tecnológico de Aeronáutica – ITA/DCTA São Paulo State University - Unesp Instituto de Ciência e Tecnologia Center for Thermal spray Research at Stony Brook University São Paulo State University - Unesp Instituto de Ciência e Tecnologia CAPES: 88887.360983/2019-00 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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