Journal
CERAMICS INTERNATIONAL
Volume 41, Issue 9, Pages 10949-10956Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.05.038
Keywords
SiCf/SiC composite; Mechanical properties; Thermal properties; Fracture; Woven and braided
Categories
Funding
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA02040200]
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SiCf/SiC composites reinforced with either two-dimensional woven or three-dimensional braided preforms were fabricated by the chemical vapor infiltration (CVI) process. The microstructure, mechanical and thermal properties of the composites were studied. In comparison, the 3D-braided out-performed 2D-woven composites based on the mechanical and thermal properties. The geometry and microstructure determinants of the properties of the composites were investigated. Additionally, we tested how resilient the SiCf/SiC composites were in contact with eutectic molten salt of Lip, NaF and KF to determine whether such materials could function in a molten salt reactor. The molten salt had minimal influence on mechanical properties of SiCf/SiC composites due to the SiC coating blocking the infiltration of molten salt. Our data demonstrated the feasibility of CVI produced SiCf/SiC composites with potential applications in molten salt reactor. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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