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Nanostructural characterization of carbon nanotubes in laser-sintered polyamide 12 by 3D-TEM

  • Jiaming Bai (a1), Ruth D. Goodridge (a1), Richard J.M. Hague (a1), Mo Song (a2) and Hideyuki Murakami (a3)...


Three-dimensional transmission electron microscopy (3D-TEM) is a powerful technology that provides 3D characterization of the internal details of a material. In this work, for the first time, 3D-TEM was used to characterize a laser-sintered polymer nanocomposite. The dispersion of carbon nanotubes (CNTs) in the laser-sintered polyamide 12 (PA12)-CNT nanocomposite parts was evaluated. At first, to prepare 3D-TEM samples at specific locations, a focused ion beam technique was used. Then, high quality two-dimensional (2D)-TEM images were achieved at various scanning angles for the PA12-CNT laser-sintered sample. After that, 3D-TEM images were reconstructed by combining all the 2D-TEM images. Results revealed that the CNTs were agglomerate-free in the PA12-CNT parts after laser sintering, which helps to explain previously reported improvement in mechanical properties of laser-sintered PA12-CNT parts.


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Nanostructural characterization of carbon nanotubes in laser-sintered polyamide 12 by 3D-TEM

  • Jiaming Bai (a1), Ruth D. Goodridge (a1), Richard J.M. Hague (a1), Mo Song (a2) and Hideyuki Murakami (a3)...


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