Multi scale characterization of SiC/SiC composite materials

D. Frazer, M. D. Abad, C. Back, C. Deck, P. Hosemann

Producción científica: Capítulo del libroCapítulorevisión exhaustiva

Resumen

SiC fiber-reinforced SiC matrix composites (SiC/SiC) are under consideration as a structural material for a range of nuclear applications. While these materials have been studied for decades, recently new small scale materials testing techniques have emerged which can be used to characterize SiC/SiC materials from a new perspective. In this work cross section nanoindentation was performed on SiC/SiC composites revealing that both the hardness and Young’s modulus was substantially lower in the fiber compared to the matrix despite both being SiC. Using a Scanning Electron Microscopy (SEM) it was observed that the grain growth of the matrix during formation was radially out from the fiber with a changing grain structure as a function of radius from the fiber center. Focused ion beam machining was used to manufacture micro-cantilever samples and evaluate the fracture toughness and fracture strength in the matrix as a function of grain orientation in the matrix.

Idioma originalInglés
Título de la publicación alojadaAdvanced Composites for Aerospace, Marine, and Land Applications
EditorialSpringer International Publishing
Páginas173-183
Número de páginas11
ISBN (versión digital)9783319480961
ISBN (versión impresa)9781118888919
DOI
EstadoPublicada - 1 ene 2016
Publicado de forma externa

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