NDLI: PREPARATION OF SHORT CARBON FIBER / SiC MULTILAYER COMPOSITES BY TAPE CASTING

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PREPARATION OF SHORT CARBON FIBER / SiC MULTILAYER COMPOSITES BY TAPE CASTING

Content Provider	Semantic Scholar
Author	Yang, Wenshu Badini, Claudio Francesco Fuso, Laura Biamino, Sara Vegabolivar, Claudia Fino, Paolo
Copyright Year	2013
Abstract	Silicon carbide (SiC) is one of the most promising materials for thermal protection system (TPS) of future reusable spacecraft. However, its low fractu re toughness remains a major concern for its widely application in severe environment. SiC-based CMCs with long carbon fibers display improved toughness. However, owing to the matrix porosity, they easily undergo oxidation and then need tailored surface coatings for application as TPS of space vehicles. As an alternative, also short C fiber reinforced Si C composites (Csf/SiC), processed by hot-pressing [1] or spark plasma sintering [2]. Processing ceramics with a multilayer structure is another effective method to improve the toughness of ceramic materials [3, 4] and multilayer SiC, showing self-passivating behavior, has been proposed as an oxidation-resistant components of TPS [5]. The authors have been exploring the possibility to prepare, by tape casting, sheets of C sf/SiC composites, to be stacked in a multilayer structure and finally submitted to pressureless sintering. Such a kind of processing path could provide an alternative method for Csf/SiC composite preparation; different C sf/SiC layers could also be integrated in a SiC-based multilayer TPS, in order to optimize its thermal conductivity behavior. Preliminary investigation ab out processing method, microstructure and properties of these multilayer Csf/SiC composites is presented in this paper.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://giaki.org/sites/default/files/progetti/preparation-of-short-carbon-fibre-sic-multilayer-composites-by-tape-casting.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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