Fabrication and electromagnetic properties of novel FeNi alloy-coated flake graphite prepared by electroless plating》.pdf

Journal of Alloys and Compounds 656 (2016) 51 e57 Contents lists available at ScienceDirect Journal of Alloys and Compounds journal homepage: http://www.elsevier .com/locate/jalcom Fabrication and electromagnetic properties of novel FeNi alloy-coated flake graphite prepared by electroless plating * Zhili Liu, Fang He , Fei Gao, Baojin Ren, Yuan Huang Tianjin Key Laboratory of Composite and Functional Materials, Department of Materials Science and Engineering, Tianjin University, 300072, Tianjin, China a r t i c l e i n f o a b s t r a c t Article history: In this paper, FeNi alloy-coated flake graphite (FeNi-FG) was prepared by electroless plating technique Received 29 July 2015 using hydrazine as reducer. Several analytical techniques including scanning electron microscopy (SEM), Received in revised form optical microscope (OM), energy dispersive spectroscopy (EDS), transmission electron microscope (TEM), 21 September 2015 X-ray diffraction (XRD) are systematically employed to characterize the FeNi-FG. The results show that Accepted 22 September 2015 the pretreated flake graphite is fully wrapped by FeNi alloy which consist of FeNi3 phase, and the formed Available online 28 September 2015 FeNi-FG possesses saturation magnetization of 37.5emu/g. The paraffin-based composite filled with FeNi- FG exhibits effective electromagnetic impedance matching and ex