期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 78, 期 -, 页码 48-59出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2015.08.003
关键词
Carbon fibres; Impact behavior; Strength; Mechanical testing
资金
- Mid-career Researcher Program through the National Research Foundation of Korea (NRF) - Ministry of Education [2015R1A2A2A01005499]
- Technology Innovation Program (Development of Manufacturing System for CFRP (Carbon Fiber Reinforced Plastics) Machining) - Ministry of Trade, Industry & Energy (MOTIE, Korea) [10053248]
The effect of CuO nanostructure morphology on the mechanical properties of CuO/woven carbon fiber (WCF)/vinyl ester composites was investigated. The growth of CuO nanostructures embedded in the surface of woven carbon fibers (WCFs) was carried out by a two-step seed-mediated hydrothermal method; i.e., seeding and growth treatments with controlled chemical precursors. CuO nanostructural morphologies ranging from petal-like to cuboid-like nanorods (NRs) were obtained by controlling the thermal growth temperature in the hydrothermal process over a growth time of 12 h. The Cu2+/O- ratio and the rate of reaction greatly influenced the formation of CuO nanostructures as self-assembled shapes on the crystal planes in the order L[010] > L[100] > L[001]. Morphological variations were analyzed by scanning electron microscopy, X-ray diffraction, and Brunauer-Emmett-Teller surface area analysis. The impact behavior, in-plane shear strength, and tensile properties of the CuO/WCF/vinyl ester composites were analyzed for different CuO NR morphologies at various growth temperatures and molar concentrations. The CuO/WCF/vinyl ester composites had improved impact energy absorption and mechanical properties because the higher specific surface area of CuO NRs grown as secondary reinforced nanomaterials on WCFs enhanced load transfer and load-bearing capacity. (C) 2015 Elsevier Ltd. All rights reserved.
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