The usability and preliminary effectiveness of ultrasonic nanocrystalline surface modification technique on surface properties of silicon carbide

•Sintered SiC was treated by UNSM technique.•UNSM technique increased density and reduced surface roughness.•UNSM technique improved the mechanical and tribological properties.•UNSM technique had no effect on chemical composition.•The results of this study are expected to make SiC a more attractive...

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