English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/159606
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

High temperature compressive strength and creep behavior of Si–Ti–C–O fiber-bonded ceramics

AutorVera, M.C. ; Martínez-Fernández, J.; Singh, M.; Ramírez-Rico, J.
Palabras claveCreep
Ceramic matrix composites
Silicon carbide
High temperature
Fecha de publicación2017
EditorElsevier
CitaciónJournal of the European Ceramic Society 37: 4442- 4448 (2017)
ResumenFiber bonded silicon carbide ceramic materials provide cost-advantage over traditional ceramic matrix composites and require fewer processing steps. Despite their interest in extreme environment thermostructural applications no data on long term mechanical reliability other than static fatigue is available for them. We studied the high temperature compressive strength and creep behavior of a fiber bonded SiC material obtained by hot-pressing of Si–Ti–C–O fibers. The deformation mechanism and onset of plasticity was evaluated and compared with other commercial SiC materials. Up to 1400 °C, plasticity is very limited and any macroscopic deformation proceeds by crack formation and damage propagation. A transient viscous creep stage is observed due to flow in the silica matrix and once steady state is established, a stress exponent n ∼ 4 and an activation energy Q ∼ 700 kJ mol are found. These results are consistent with previous data on creep of polymer derived SiC fibers and polycrystals.
URIhttp://hdl.handle.net/10261/159606
Identificadoresdoi: 10.1016/j.jeurceramsoc.2017.06.037
issn: 1873-619X
Aparece en las colecciones: (ICMS) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Creep_Si-Ti-C-O.pdf Embargado hasta 22 de junio de 20191,81 MBAdobe PDFVista previa
Visualizar/Abrir     Petición de una copia
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.