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For the inadequate interlaminar strength of 2D carbon/carbon (C/C) composite, in-situ grown carbon nanotubes (CNTs) reinforcing strategy was put forward to strengthen the interlaminar matrix at the nanoscale and inhibit the interlaminar cracking. CNT morphology is an essential factor in influencing the enhancement effect. Herein, the influence of in-situ grown CNT morphology on the microstructure and mechanical properties of C/C composite was deeply studied. The radially-aligned straight CNTs could induce the formation of highly-ordered pyrolytic carbon (PyC), while PyC in randomly-distributed curved CNTs concentrated area exhibits an isotropic structure. Further, radially-aligned straight CNTs show better improvement on the flexural and shear strength of C/C composites. According to the fine structural characterization and finite element simulation, the influence mechanism of CNT morphology was revealed. CNT morphology can influence the stress distribution in the PyC protective layer, and compared with radially-aligned straight CNTs, randomly-distributed curved CNTs induce higher tensile stress in the PyC protective layer, which has a detrimental impact on the flexural and shear properties of C/C composite. This work provides novel insights into the effect of CNT morphology on the microstructure and mechanical properties of C/C composites, which gives a basis for the structural design and preparation of CNTs reinforced C/C composites.
Shen Q, Li H, Li W, Song Q. Realizing the synergy of carbon nanotubes and matrix microstructure for improved flexural behavior of laminated carbon/carbon composites. J Alloys Compd 2018;738:49–55.
Shen Q, Song Q, Li HJ, Xiao CX, Wang TY, Lin HJ, et al. Fatigue strengthening of carbon/carbon composites modified with carbon nanotubes and silicon carbide nanowires. Int J Fatig 2019;124:411–21.
Song Q, Li KZ, Li HL, Li HJ, Ren C. Grafting straight carbon nanotubes radially onto carbon fibers and their effect on the mechanical properties of carbon/carbon composites. Carbon 2012;50(10):3949–52.
Wicks SS, Villoria RGd, Wardle BL. Interlaminar and intralaminar reinforcement of composite laminates with aligned carbon nanotubes. Compos Sci Technol 2010;70(1):20–8.
De Greef N, Gorbatikh L, Godara A, Mezzo L, Lomov SV, Verpoest I. The effect of carbon nanotubes on the damage development in carbon fiber/epoxy composites. Carbon 2011;49(14):4650–64.
Sharma SP, Lakkad SC. Effect of CNTs growth on carbon fibers on the tensile strength of CNTs grown carbon fiber-reinforced polymer matrix composites. Compos Part A Appl Sci Manuf 2011;42(1):8–15.
Qin J, Wang C, Wang Y, Lu R, Zheng L, Wang X, et al. Synthesis and growth mechanism of carbon nanotubes growing on carbon fiber surfaces with improved tensile strength. Nanotechnology 2018;29(39):395602.
Veedu VP, Cao A, Li X, Ma K, Soldano C, Kar S, et al. Multifunctional composites using reinforced laminae with carbon-nanotube forests. Nat Mater 2006;5(6):457–62.
Garcia EJ, Wardle BL, Hart AJ, Yamamoto N. Fabrication and multifunctional properties of a hybrid laminate with aligned carbon nanotubes grown in situ. Compos Sci Technol 2008;68(9):2034–41.
Feng L, Li KZ, Zhao ZG, Li HJ, Zhang LL, Lu JH, et al. Three-dimensional carbon/carbon composites with vertically aligned carbon nanotubes:Providing direct and indirect reinforcements to the pyrocarbon matrix. Mater Des 2016;92:120–8.
Feng L, Li KZ, Sun JJ, Jia YJ, Li HJ, Zhang LL. Influence of carbon nanotube extending length on pyrocarbon microstructure and mechanical behavior of carbon/carbon composites. Appl Surf Sci 2015;355:1020–7.
Qian H, Bismarck A, Greenhalgh ES, Kalinka G, Shaffer MSP. Hierarchical composites reinforced with carbon nanotube grafted fibers: the potential assessed at the single fiber level. Chem Mater 2008;20(5):1862–9.
Zhang Q, Liu J, Sager R, Dai L, Baur J. Hierarchical composites of carbon nanotubes on carbon fiber: influence of growth condition on fiber tensile properties. Compos Sci Technol 2009;69(5):594–601.
Steiner III SA, Li R, Wardle BL. Circumventing the mechanochemical origins of strength loss in the synthesis of hierarchical carbon fibers. ACS Appl Mater Interfaces 2013;5(11):4892–903.
Li KZ, Song Q, Wu LY, Li HJ, Gong QJ. Influence of carbon nanotube content on microstructures and mechanical properties of carbon/carbon composite. Chin J Inorg Chem 2011;27(5):1001–7.
Xiao P, Lu X-f, Liu Y, He L. Effect of in situ grown carbon nanotubes on the structure and mechanical properties of unidirectional carbon/carbon composites. Mat Sci Eng A 2011;528(7–8):3056–61.
Feng L, Li KZ, Xue B, Fu QG, Zhang LL. Optimizing matrix and fiber/matrix interface to achieve combination of strength, ductility and toughness in carbon nanotube-reinforced carbon/carbon composites. Mater Des 2017;113:9–16.
Song Q, Li KZ, Qi LH, Li HJ, Lu JH, Zhang LL, Fu QG. The reinforcement and toughening of pyrocarbon-based carbon/carbon composite by controlling carbon nanotube growth position in carbon felt. Mat Sci Eng A 2013;564:71–5.
Qian H, Greenhalgh ES, Shaffer MSP, Bismarck A. Carbon nanotube-based hierarchical composites: a review. J Mater Chem 2010;20(23):4751–62.
Sager RJ, Klein PJ, Lagoudas DC, Zhang Q, Liu J, Dai L, et al. Effect of carbon nanotubes on the interfacial shear strength of T650 carbon fiber in an epoxy matrix. Compos Sci Technol 2009;69(7–8):898–904.
Romanov VS, Lomov SV, Verpoest I, Gorbatikh L. Modelling evidence of stress concentration mitigation at the micro-scale in polymer composites by the addition of carbon nanotubes. Carbon 2015;82:184–94.
Romanov VS, Lomov SV, Verpoest I, Gorbatikh L. Can carbon nanotubes grown on fibers fundamentally change stress distribution in a composite? Compos Part A Appl Sci Manuf 2014;63:32–4.
Romanov V, Lomov SV, Verpoest I, Gorbatikh L. Inter-fiber stresses in composites with carbon nanotube grafted and coated fibers. Compos Sci Technol 2015;114(19):79–86.
Gong QM, Zhi L, Bai XD, Li D, Liang J. The effect of carbon nanotubes on the microstructure and morphology of pyrolytic carbon matrices of C-C composites obtained by CVI. Compos Sci Technol 2005;65(7–8):1112–9.
Hou Z, Yang W, Li J, Luo R, Xu H. Densification kinetics and mechanical properties of carbon/carbon composites reinforced with carbon nanotubes produced in situ. Carbon 2016;99:533–40.
Jie C, Long H, Peng X, Xiang X. Mechanical properties of carbon/carbon composites with the fibre/matrix interface modified by carbon nanofibers. Mat Sci Eng A 2016;656:21–6.
Sun J, Li H, Han L, Song Q. Growth of radially aligned porous carbon nanotube arrays on pyrolytic carbon coated carbon fibers. Vacuum 2019;164:170–4.
Reznik B, Gerthsen D, Huttinger KJ. Micro- and nanostructure of the carbon matrix of infiltrated carbon fiber felts. Carbon 2001;39(2):215–29.
Knight DS, White WB. Characterization of diamond films by Raman spectroscopy. J Mater Res 1989;4(2):385–93.
Han L, Song Q, Li K, Yin X, Sun J, Li H, et al. Hierarchical, seamless, edge-rich nanocarbon hybrid foams for highly efficient electromagnetic-interference shielding. J Mater Sci Technol 2021;72:154–61.
Song Q, Li KZ, Li HJ, Zhang SY, Qi LH, Fu QG. A novel method to fabricate isotropic pyrocarbon by densifying a multi-walled carbon nanotube preform by fixed-bed chemical vapor deposition. Carbon 2013;59:547–50.
Sun J, Li H, Han L, Li Y, Lu Y, Song Q. Compressive residual thermal stress induced crack deflection in carbon nanotube-doped carbon/carbon composites. Ceram Int 2019;45(11):13988–98.
Kundalwal SI, Ray MC. Effective properties of a novel composite reinforced with short carbon fibers and radially aligned carbon nanotubes. Mech Mater 2012;53:47–60.
Kundalwal SI, Ray MC. Effect of carbon nanotube waviness on the elastic properties of the fuzzy fiber reinforced composites. J Appl Mech 2013;80(2):1–13.
Agnihotri P, Basu S, Kar KK. Effect of carbon nanotube length and density on the properties of carbon nanotube-coated carbon fiber/polyester composites. Carbon 2011;49(9):3098–106.
Pradere C, Sauder C. Transverse and longitudinal coefficient of thermal expansion of carbon fibers at high temperatures (300-2500 K). Carbon 2008;46(14):1874–84.
Rollin M, Jouannigot S, Lamon J, Pailler R. Characterization of fibre/matrix interfaces in carbon/carbon composites. Compos Sci Technol 2009;69(9):1442–6.
Gebert JM, Reznik B, Piat R, Viering B, Weidenmann K, Wanner A, et al. Elastic constants of high-texture pyrolytic carbon measured by ultrasound phase spectroscopy. Carbon 2010;48(12):3647–50.
Zhang W, Li A, Reznik B, Deutschmann O. Thermal expansion of pyrolytic carbon with various textures. Z Angew Math Mech 2013;93(5):338–45.
Piat R, Schnack E. Modeling the effect of microstructure on the coefficients of thermal expansion of pyrolytic carbon. Carbon 2003;41(11):2162–5.
Piat R, Reznik B, Schnack E, Gerthsen D. Modeling the effect of microstructure on the elastic properties of pyrolytic carbon. Carbon 2003;41(9):1858–62.
Maniwa Y, Fujiwara R, Kira H, Tou H, Nishibori E, Takata M, et al. Multiwalled carbon nanotubes grown in hydrogen atmosphere: an x-ray diffraction study. Phys Rev B 2001;64(7):073105.
Sun J, Zhou G, Zhou C, Wang X. In-plane shear investigation of 3D surface-core braided composites. Compos Sci Technol 2016;135(27):54–66.
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