This research is based on our previous work of applying Ni nanolayer onto the B_4C particle surfaces by an electroless coating technique. The effects of different chemicals used in the electroless coating were studied (the amounts of the activation agent (PdCl_2). and the completing agent (C_2H_8N_2), and the addition rate of the reducing agent (NaBH_4)). SEM and XPS are employed to characterize the coated B_4C surfaces. The Ni-B nanolayer formation is strongly dependent on the activation sites and the rate that Ni~0 can be reduced-^sFundamental Ni-B coating processes and morphological changes on the B_4C particle surfaces are analyzed. Combustion driven compaction is used to produce high density B_4C compacts from Ni-B nanolayer coated B_4C particles.
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