TY - JOUR
T1 - Fracture behavior of carbon nanotube/carbon microfiber hybrid polymer composites
AU - Lachman, Noa
AU - Qian, Hui
AU - Houllé, Matthieu
AU - Amadou, Julien
AU - Shaffer, Milo S.P.
AU - Wagner, H. Daniel
N1 - Funding Information:
Acknowledgements This research was supported by a grant from the United States-Israel Binational Science Foundation (BSF), Jerusalem, Israel, and by the NES MAGNET program of the Israel Ministry of Trade and Industry. The generosity of the Harold Perlman family and the G.M.J. Schmidt Minerva Centre of Supramolecular Architectures is acknowledged. The study of growing CNTs on carbon fibers is funded by EU Seventh Framework Programme Theme 7 StorAGE (No. 234236). H.D. Wagner is the recipient of the Livio Norzi Professorial Chair in Materials Science.
PY - 2013/8
Y1 - 2013/8
N2 - Growing carbon nanotubes (CNTs) on the surface of fibers has the potential to modify fiber-matrix interfacial adhesion, enhance composite delamination resistance, and possibly improve toughness. In the present study, aligned CNTs were grown upon carbon fabric via chemical vapor deposition. Continuously monitored single-fiber composite fragmentation tests were performed on pristine and CNT-grafted fibers embedded in epoxy, and single-laminate compact-tension specimens were tested for fracture behavior. A significant increase (up to 20 %) was observed in the interfacial adhesion, at the cost of a decrease in the fiber tensile strength. As a result, the maximum load of the composite was decreased, but its residual load-bearing capacity more than doubled. The likely sources of these effects are discussed, as well as their implications.
AB - Growing carbon nanotubes (CNTs) on the surface of fibers has the potential to modify fiber-matrix interfacial adhesion, enhance composite delamination resistance, and possibly improve toughness. In the present study, aligned CNTs were grown upon carbon fabric via chemical vapor deposition. Continuously monitored single-fiber composite fragmentation tests were performed on pristine and CNT-grafted fibers embedded in epoxy, and single-laminate compact-tension specimens were tested for fracture behavior. A significant increase (up to 20 %) was observed in the interfacial adhesion, at the cost of a decrease in the fiber tensile strength. As a result, the maximum load of the composite was decreased, but its residual load-bearing capacity more than doubled. The likely sources of these effects are discussed, as well as their implications.
UR - http://www.scopus.com/inward/record.url?scp=84878660189&partnerID=8YFLogxK
U2 - 10.1007/s10853-013-7353-2
DO - 10.1007/s10853-013-7353-2
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AN - SCOPUS:84878660189
VL - 48
SP - 5590
EP - 5595
JO - Journal of Materials Science
JF - Journal of Materials Science
SN - 0022-2461
IS - 16
ER -