Mechanochemical Synthesis of Pure Fe2B Nanoparticles T. Şimşek1, M. Barış2, A. Akkurt3 ([email protected], [email protected]) 1 Department of Physics Engineering, Hacettepe University, Ankara, Turkey 2 Eti Maden Work General Management, Ankara, Turkey 3 Department of Industrial Design Engineering, Gazi University, Ankara, Turkey In this study, pure Fe2B nanoparticles were synthesized with a mechanochemical method. The initial reaction mixture included elemental iron (Fe), boron oxide (B2O3) and elemental magnesium (Mg). 350 rpm rotating speed and 1/40 ball to powder weight ratio were chosen. Fe2B particles were synthesized after 5 hours grinding. The resulting particles after the reaction were analyzed with X-Ray diffractometer. The results showed that the powders after ball milling contains mainly Fe2B+MgO phases. 0.1 M acetic acid was used to remove MgO contamination. The final product in Figure 1 showed pure Fe2B nanoparticles was achieved mechanochemicaly. The reaction equation is given as follows. Fe + B2O3 + Mg Fe2B + MgO (1) b) a) Figure 1. XRD spectrum of Fe2B samples obtained with a reaction period of 5 hours before (a) and after leaching (b). References 1) D.Z. Zhang, M.L. Qin, Rafi-ud-din, L. Zhang, X.H. Qu “Fabrication and characterization of nanocrystalline Nb–W–Mo–Zr alloy powder by ball milling”, Int. Journal of Refractory Metals and Hard Materials, 32, (2012) 45–50. 2) Katsuya K., Kiyokata I, Takeshi S, Shigeru O. “Mechanochemical synthesis of MoB2 and Mo2B5” Journal of Alloys and Compounds 315 (2001) 104–107.