Fig. 7From: Transcrystalline growth of PLLA on carbon fiber grafted with nano-SiO2 towards boosting interfacial bonding in bone scaffoldSEM images of fracture surface morphology after tensile tests of (a) PLLA, (b) PLLA/CF and (c-d) PLLA/CF-SiO2–2. (a1) (b1) (c1) and (d1) magnified areas indicate in the orange dotted squares in (a) (b) (c) and (d), respectively. (e) Schematic diagram of fracture mechanism of PLLA/CF and PLLA/CF-SiO2 specimens. Red arrows and circles indicate fiber pulling out and interfacial bonding, respectivelyBack to article page