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SiC/SiC woven fabric laminates: Design, manufacturing, mechanical properties
Journal article   Peer reviewed

SiC/SiC woven fabric laminates: Design, manufacturing, mechanical properties

Nina Orlovskaya, Mykola Lugovy, Frank Ko, Sergey Yarmolenko, Jag Sankar and Jakob Kuebler
Composites. Part B, Engineering, v 37(6), pp 524-529
2006

Abstract

A. Laminates B. Fracture toughness C. Computational modelling D. Mechanical testing Silicon carbide woven fabric
The SiC/SiC wf laminate design has been targeted to achieve increased residual compressive stress in thin SiC wf layers and small residual tensile stress in thick SiC layers, that would lead to a significant increase of the apparent fracture toughness of the composite. The laminates have been manufactured using rolling and hot pressing techniques. The measured apparent fracture toughness of laminates showed a significant increase over the monolith SiC ceramics. Thus, while the intrinsic fracture toughness of pure SiC ceramics is in the range of 2–3 MPa m 1/2, significant increase up to 6–8 MPa m 1/2 was achieved for the layered ceramics. A crack shielding by compressive residual stress was a main mechanism responsible for the significant toughening of the SiC/SiC wf laminate.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Engineering, Multidisciplinary
Materials Science, Composites
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