Enhanced mechanical properties of carbon fibre/lithium aluminosilicate composites modified by SiB6 addition |
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| Authors: | Long Xia Chi Wang Dongdong Feng Ke Wang Haibo Han |
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| Affiliation: | 1. School of Materials Science and Engineering, Harbin Institute of Technology, Weihai, People’s Republic of China;2. Shanghai Institute of Spacecraft Equipment, Shanghai, People’s Republic of China |
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| Abstract: | ABSTRACTCarbon fibre-reinforced lithium aluminosilicate matrix composites (Cf/LAS) with different SiB6 contents were prepared by the hot pressing method to assess their mechanical properties and oxidation resistance. Composite that was incorporated with 2 wt-% SiB6 exhibited the highest flexural strength of 500 ± 22.3 MPa. Weight loss and residual strength of Cf/LAS modified by SiB6 were analysed. The results indicated that the addition of SiB6 had a remarkable effect on improving the oxidation resistance for Cf/LAS. To establish a direct relationship among interfacial microstructure, mechanical and oxidation behaviour of the studied composites, their connection was examined and discussed. |
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| Keywords: | Carbon fibres ceramics matrix composites fracture mechanics/toughness oxidation resistance |
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