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Effect of silicon additions on characteristics of carbon fiber reinforced aluminum composites during thermal exposure

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Abstract

The effects of Si additions on the behavior of high modulus carbon fiber reinforced aluminum matrix (CF/Al) composites during thermal exposure at 773 K for different times have been investigated. The composites were fabricated via hybridization with a small volume fraction of SiC particles using a pressure-casting process. The change of longitudinal tensile strength, the strength degradation of carbon fibers, and the microstructural observations on the interfaces of CF/pure Al composites and CF/Al-Si composites after thermal exposure undoubtedly indicate that the alloying element Si in an aluminum matrix can effectively prohibit the interfacial reactions at the fiber/aluminum interface and has positive effects on the characteristics of CF/Al composites.

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Cheng, HM., Zhou, BL., Kitahara, A. et al. Effect of silicon additions on characteristics of carbon fiber reinforced aluminum composites during thermal exposure. Journal of Materials Research 11, 1284–1292 (1996). https://doi.org/10.1557/JMR.1996.0163

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  • DOI: https://doi.org/10.1557/JMR.1996.0163

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