Tailoring carbon nanotube/matrix interface to optimize mechanical properties of multiscale composites |
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| Affiliation: | 1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;2. Analysis and Testing Center, Donghua University, Shanghai 201060, China;3. Department of Materials Engineering, Monash University, 3800 Melbourne, VIC, Australia;1. The Section for Cognitive Systems - DTU Compute, Technical University of Denmark, Kongens Lyngby, Denmark;2. Lundbeck Foundation Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research, Mental Health Services Glostrup, Glostrup, Denmark;3. Center for Neuropsychiatric Schizophrenia Research, Mental Health Services Glostrup, Capital Region, Glostrup, Denmark;4. Child and Adolescent Mental Health Centre, Mental Health Services, Capital Region, Copenhagen, Denmark;1. School of Materials Science and Engineering, Dalian University of Technology, Dalian 116023, PR China;2. National Key Laboratory of Science and Technology on Advanced Composites in Special Environment, Harbin 150080, PR China;1. Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang, Jiangsu, 212013, China;2. Department of Engineering Mechanics, Applied Mechanics Lab, Tsinghua University, Beijing, 100084, China |
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| Abstract: | Pyrolytic carbon (PyC) was deposited on surfaces of carbon nanotubes (CNT) which were grown on carbon fibers to optimize the interfacial bonding between CNT/Matrix. The PyC protected CNT effectively and weakened CNT/Matrix interfacial strength, leading to long pull-out of CNT compared to brittle fracture of uncoated CNT. The well-protected CNT have more effective contributions to the improvement of mechanical properties. A “fiber-PyC/SiC-(CNT + PyC)-(CNT + SiC)” structure was formed using this process. |
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