Mechanical behavior of alumunium surfaces coated with doped graphene and graphene oxide

Within the scope of the thesis, GO and rGO were coated on aluminum plates to improve their strength. First, characterization was carried out using Raman spectroscopy for all experimental groups. After the characterization by Raman spectroscopy, XPS analyzes were performed for the samples in which it was commented that doping had occurred. According to the obtained Raman spectroscopy results, the peak positions of GO, N GO, rGO and N-rGO were determined to be compatible with the literature. Additionally, as a result of the XPS measurements taken, it was determined that the doping to GO and rGO was permanent and homogeneous, and the N-doping to N-GO and N-rGO was 2% and 2.5%, respectively. The effects of doped and undoped GO and rGO on the strength were examined by coating them in solution on Al-1050 plates. The tensile strength of the Al-1050 plate was measured as 107 MPa after 67 minutes. GO, N-GO, rGO and N-rGO were coated on Al-1050 plates and their tensile strength was measured as 120 MPa, 127 MPa, 122 MPa and 119 MPa, respectively. The endurance times of these measurements were 75 minutes, 80 minutes, 76 minutes and 74 minutes, respectively. In light of these results, it was determined that the sample with the highest tensile strength (127 MPa) and durability time (80 minutes) was N-GO. Keywords: Graphene, GO, rGO, doped graphene, Al plate