Wear-Resistant TiN - Si3N4 Nanocomposites Consolidated by Electric Discharge Sintering

Dense nanocomposites on the basis of silicon nitride with the size of structural elements less than 150 nm have been consolidated by Electric Discharge Sintering. The improvement of materials properties is expected: wearproofness, fracture toughness (~5-6 MPa м1/2), hardness (~22 GPа), bend stress (800-1100 MPа), stability to the aggressive environments (acids at a room and high temperatures) as compared to traditional materials which now use as frictional unit.