In situ generated ß-Yb₂Si₂O₇ environmental barrier coatings to protect non-oxide silicon-based ceramics in gas turbines

Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Lenz Leite, Mateus
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Göttingen : Cuvillier Verlag, 2022.
Colección:Schriftenreihe Keramische Werkstoffe.
Temas:
Combustion.
combustion.
Combustion
Acceso en línea:Texto completo
Tabla de Contenidos:
  • Intro
  • 1 Introduction and motivation
  • 1.1 Goals
  • 2 State of the art
  • 2.1 Overview about gas turbines
  • 2.2 Non-oxide silicon-based ceramics
  • 2.3 Oxidation and hot gas corrosion behavior of Si3N4
  • 2.4 Suitable environmental barrier coating materials
  • 2.5 Environmental barrier coatings for Si3N4, SiC and SiC/SiC
  • 2.6 Polymer derived ceramics
  • 2.7 Synthesis of rare-earth silicates
  • 2.8 Preliminary studies: silazane and Yb2O3-based systems
  • 3 Experimental procedure
  • 3.1 Materials
  • 3.2 Composition and preparation of the coating slurries
  • 3.3 Processing of powder and monolithic samples
  • 3.4 Deposition of the Si/Yb(2:1) coating system
  • 3.5 Characterization methods
  • 3.6 Résumé
  • 4 Results and discussion
  • 4.1 Pyrolysis behavior of the Yb(2:1) composite powder
  • 4.2 Phase composition and microstructure of the Yb(2:1) monoliths
  • 4.3 Oxidation behavior of uncoated Si3N4 substrates
  • 4.4 Properties of the Si/Yb(2:1) coating system on Si3N4
  • 4.5 Deposition of thicker Yb(2:1) coatings
  • 4.6 Si/Yb(2:1) coating system on SiC/SiC
  • 5 Summary
  • 6 Outlook
  • 7 Zusammenfassung
  • 8 References
  • 9 Acknowledgements
  • 10 Annexes
  • 10.1 List of symbols and abbreviation
  • 10.2 List of chemical compounds
  • 10.3 List of figures
  • 10.4 List of tables
  • 10.5 Publications
  • 10.6 Curriculum Vitae

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