▎ 摘　　要

NOVELTY - The laminate has a first electrically conductive block (15) which is placed in use toward the inside of the aircraft. The electromagnetic radiation reflection coefficient is greater than minus 1 dB. A second intermediate electromagnetic absorber block (11) is provided with a stack of electrically non-conductive fiber sheets (13). Each fiber sheet is partially permeated with graphene-based nanoplatelets (12), so as to achieve a periodic and electromagnetically subresonant layer in which conductive layers contain graphene nanoplatelets alternate with non-conductive layers. A third block (14) of electrically non-conductive material is arranged toward the outside in use and forming portion of the outer surface of the aircraft. USE - Multilayer radar-absorbing laminate for use on aircraft made of composite material. ADVANTAGE - The laminate material is realized with the simultaneous control of electromagnetic and mechanical properties. The greater uniformity of distribution of the doping component including graphene nanoplatelets is realized, without the formation of aggregates with respect to other nanomaterials including carbon nanotubes, such that adequate homogeneity of the electromagnetic properties of the material is ensured. The lay-up is formed with succession of reinforcement fibers with different doping weights, with a differentiated concentration of graphene in the thickness, so that the optimization of the electromagnetic absorbency property of the final component is allowed. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-section view of the multilayer radar-absorbing laminate. Intermediate electromagnetic absorber block (11) Graphene-based nanoplatelet (12) Non-conductive fiber sheets (13) Block of electrically non-conductive material (14) Electrically conductive block (15)