Journal
SCRIPTA MATERIALIA
Volume 65, Issue 3, Pages 186-189Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2011.03.034
Keywords
Carbides; Ceramic matrix composites; Whiskers; Nitrides; Mechanical properties
Categories
Funding
- Research Fund for the Doctoral Program of Higher Education [20070335017]
- Ministry of Education of China
- High Science and Technique Brainstorm Project of Zhejiang Province of China [2006C11184]
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SiC-based ceramics reinforced with SiC whiskers or/and TiN nanoparticles were produced by pressureless sintering. The introduction of SiC whiskers and TiN nanoparticles improved the densification and mechanical properties of the SiC-based ceramics. The relative densities of the SiC-based ceramics increased from 95.8% to 98.1%. Vickers' microhardness was improved from 18.19 to 26.65 GPa for SiC/TiN. The highest of fracture toughness value achieved, 8.69 MPa m(1/2), was for a SiC/TiN composite, while the value of flexural strength ranged from 416 to 1122.81 MPa. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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