Enhanced mechanical properties in Cf/LAS composite with yolk-shell structure interface |
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| Affiliation: | 1. School of Materials Science and Engineering, Harbin Institute of Technology (Weihai), Weihai 264209, PR China;2. School of Science, Lanzhou University of Technology, Lanzhou 730050, PR China;3. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China;4. School of Materials Science and Engineering, Shandong University of Technology, Zibo 255049, Shandong, PR China;1. CNR-ISTEC, Inst. of Science and Technology for Ceramics, Via Granarolo 64, 48018 Faenza, Italy;2. INFN – Laboratori Nazionali di Legnaro, Viale dell’Università 2, 35020 Legnaro, Italy;3. Department of Industrial Engineering, University of Padova, Via Venezia 1, 35131 Padova, Italy;1. Department of Physics, Faculty of Sciences and Letters, Çukurova University, 01330 Adana, Turkey;2. INMA (CSIC-Universidad de Zaragoza), Maria de Luna, 50018 Zaragoza, Spain;1. State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China;2. Shenzhen Research Institute, Central South University, Shenzhen 518057, China;1. School of Materials Science and Engineering, State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China;2. Guangdong HUST Industrial Technology Research Institute, Dongguan 523808, PR China;3. Wenzhou Advanced Manufacturing Technology Research Institute of Huazhong University of Science and Technology, China;4. Inner Mongolia Metal Material Research Institute, Baotou 014000, China;5. China Zhenhua Group Yunke Electronics Co., Ltd., Guiyang 550018, China;6. School of Optical and Electronic Information, Engineering Research Center for Functional Ceramics MOE, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China;7. Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani 12120, Thailand;8. Shenzhen Research Institute of Central China Normal University, Shenzhen 518000, China;9. Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City 71420, Viet Nam;1. Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 04001 Kosice, Slovakia;2. CAN Superconductors, Ringhofferova 66, 251 68 Kamenice, Czech Republic;3. Faculty of Chemical Technology, University of Chemistry and Technology, Technicka 5, 166 28 Prague 6, Czech Republic |
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| Abstract: | A new approach to improve the interfacial matching of carbon fiber-reinforced lithium-aluminum-silicon(Cf/LAS) composites is proposed, which is achieved by Ni nanoparticles catalyzing the formation of a tunable graphite layer on the surface of Cf. The interfacial structure between the composites can be effectively improved by tuning parameters such as Ni2+ content and sintering holding time, and ultimately, the mechanical properties of the composites can be improved. Interestingly, due to the introduction of Ni2+, a yolk-shell type graphite layer is formed between the Cf and LAS, and the bridging effect of the graphite layer improves interfacial bonding. The highest flexural strength (515 ± 30 MPa) and fracture toughness (14.7 ± 1.6 MPa·m1/2) were obtained. Taking Cf/LAS as an example, the relationship between interfacial matching and mechanical properties of composites is systematically investigated and may provide a new idea for the improvement of mechanical properties of fiber-reinforced composites. |
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| Keywords: | Mechanical properties Graphite layer Interface Yolk-shell structure |
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