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J Composite Mater. 2014;48:3735–3746.1745-8080https://doi.org/10.1080/17458080.2018.1467049https://journals.sagepub.com/doi/abs/10.1177/0021998318817355Accession Number: WOS:000433312800001Microsize Powders of Ni and Cu were prepared by water atomization technique to fabricate metal matrix composites containing various percentages of nanosized boron nitride particles (1, 2, 3, 4, 5wt. % of BN in a matrix containing (20wt. %Ni and 80wt. %Cu). The prepared mixtures were cold compacted under 400MPa, and sintered for 2h at 1000 degrees C in a controlled atmosphere of 3:2 N-2/H-2 gas mixtures. The microstructure and the chemical composition of the prepared powders as well as the consolidated composites were investigated by X-ray diffraction as well as field emission scanning electron microscope (FESEM) equipped with an energy dispersive spectrometer (EDS). The produced Cu and Ni powders have spheroid shape of size less than 100 microns, but the investigated BN has an equiaxed particle shape and particle size of approximate to 500nm. It has been also observed that BN and Ni particles were homogeneously distributed in the Cu matrix of the present BN/Ni-Cu composites. The density, electrical resistivity, saturation magnetization and hardness of the composites were measured. It was observed that, by increasing BN content, the relative density was decreased, while the saturation magnetization, electrical resistivity and hardness were increased.en-USUniversity for OXIDESTEELCOPPERHARDNESSCOMPACTSDENSIFICATIONCUTTING-TOOLMAGNETIC-PROPERTIESMECHANICAL-PROPERTIESCUBIC BORON-NITRIDEhardnesselectrical and magnetic propertiesNi-Cu compositeBNpowder technologyAtomizationArticlehttps://doi.org/10.1080/17458080.2018.1467049