1 Impact of High Energy Ball Milling on the Nanostructure of Magnetite-Graphite and Magnetite-Graphite-Molybdenumdisulphide Blends W.Österle 1*) , G.Orts-Gil 1) , T.Gross 1) , C. Deutsch 1) , R.Hinrichs 2) , M.A.Z.Vasconcellos 3) , H.Zoz 4) , D.Yigit 4) , X.Sun 4) 1) BAM Federal Institute for Materials Research and Testing , 12200 Berlin, Germany 2) Instituto de Geociências, UFRGS, P.O. Box 15001, 91501-970 Porto Alegre, Brazil 3) Instituto de Física, UFRGS, P.O. Box 15051, 91501-970 Porto Alegre, Brazil 4) Zoz Group, 57482 Wenden, Germany * Corresponding author: W. Österle, Tel. +49 30 81041511, Fax: +49 30 81041517 E-mail: Werner.oesterle@bam.de Abstract Different, partly complementary and partly redundant characterization methods were applied to study the transition of magnetite, graphite and MoS 2 powders to mechanically alloyed nanostructures. The applied methods were: Transmission electron microscopy (TEM), Mössbauer spectroscopy (MS), Raman spectroscopy (RS), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The main objective was to prepare a model material providing the essential features of a typical tribofilm forming during automotive braking, and to assess the impact of different constituents on sliding behaviour and friction level. Irrespective of the initial grain size, the raw materials were transferred to a nanocrystalline structure and mixed *Text Only in MS Word (Double-Spaced) Click here to view linked References