Preparation and properties of nano-SiC strengthening Al2O3 composite ceramics

Autor:	F.M. Xu, Yali Dong, X.L. Shi, Lai Wang, Jenn-Ming Yang, Yi Tan
Rok vydání:	2011
Předmět:	Materials science Mechanical Engineering Doping Composite number Condensed Matter Physics Hot pressing Microstructure Fracture toughness Flexural strength Mechanics of Materials visual_art Nano visual_art.visual_art_medium General Materials Science Ceramic Composite material
Zdroj:	Materials Science and Engineering: A. 528:2246-2249
ISSN:	0921-5093
DOI:	10.1016/j.msea.2010.11.085
Popis:	The processing and mechanical behaviors of Al 2 O 3 - x wt.%SiC ( x = 1, 2, 5, AS x ) nano-composites prepared by the in situ synthesis of SiC from polycarbosilane (PCS) were investigated. The composites were densified by hot pressing. The microstructure and mechanical properties of the sintered composites were analyzed. The results showed that a fully dense structure was obtained when a few nano-SiC were doped and that the fracture toughness and strength were highly improved compared with those of monolithic Al 2 O 3 . The fracture toughness reached 5.1 MPa m 1/2 in AS2 composite. The maximum flexural strength was 516 MPa obtained in AS1 composite.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::db8a46b2f9e08abee940eae997d386fd https://doi.org/10.1016/j.msea.2010.11.085 Zobrazit plný text záznamu Full Text from ScienceDirect