The B_4C and B_(am) was high energy milled with SiC spheres during four different times. The SiC was added to the composition, possibly as nanoparticles. The materials were pressed and sintered at 2150 °C for 30 minutes. The results showed that a direct correlation between milling times, density and the elastic modulus, which were measured to be 276, 333, 365 and 420 GPa as the milling time varied from zero, 15, 30 and 60 minutes, respectively.
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