Fig. 9

2D nacre-inspired films reinforced with nanosheets. a Illustration of the preparation process of the amorphous alumina (AA) nanosheet-reinforced ternary nacre-like film. b Optical image. c Fracture surface. d EDS maps recorded from the fracture surface. e Typical tensile stress-strain curves of the film. f Comparison of the tensile strength and toughness of the GO-AA-SCMC film with other GO-based films. g, h Front- and i, j side-view fracture morphology of GO-AA-SCMC nanocomposites after tensile testing. Reproduced with permission76