RT journal article T1 Exploring the Capability of HAADF-STEM Techniques to Characterize Graphene Distribution in Nanocomposites by Simulations A1 Baladés Ruiz, Nuria A1 Sales Lérida, David A1 Herrera Collado, Miriam A1 Molina Raya, Andrea A1 Hernández Garrido, Juan Carlos A1 López Haro, Miguel A1 Molina Rubio, Sergio Ignacio A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica A2 Ingeniería Mecánica y Diseño Industrial AB This paper explores the capability of scanning transmission electron microscopy (STEM) techniques in determining the dispersion degree of graphene layers within the carbon matrix by using simulated high-angle annular dark-field (HAADF) images. Results ensure that unmarked graphene layers are only detectable if their orientation is parallel to the microscope beam. Additionally, gold-marked graphene layers allow evaluating the dispersion degree in structural composites. Moreover, electron tomography has been demonstrated to provide truthfully 3D distribution of the graphene sheets inside the matrix when an appropriate reconstruction algorithm and 2D projections including channelling effect are used PB HINDAWI LTD SN 1687-4110 YR 2018 FD 2018 LK http://hdl.handle.net/10498/21881 UL http://hdl.handle.net/10498/21881 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 12-nov-2026