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Single‐Crystal SiC Nanowires with a Thin Carbon Coating for Stronger and Tougher Ceramic Composites
Author(s) -
Yang W.,
Araki H.,
Tang C.,
Thaveethavorn S.,
Kohyama A.,
Suzuki H.,
Noda T.
Publication year - 2005
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200500104
Subject(s) - materials science , chemical vapor infiltration , composite material , flexural strength , nanowire , ceramic matrix composite , ceramic , coating , fracture toughness , nanotechnology
SiC nanowires (NWs) reinforce SiC matrix composites with high efficiency. With the incorporation of ∼ 6 vol.‐% randomly oriented single‐crystal SiC NWs in the matrices, the fracture toughnesses and flexural strengths of the composites doubled. The composites (see Figure) were fabricated in situ by a new process based on chemical vapor infiltration. Reinforcement efficiency of the NW is affected by the amount of C deposited on the NWs as the NW/matrix interfacial layer.