Ceramic Tool Materials for High Speed Cutting Process
Frictional and mechanical properties of hot-pressed Al2O3 and Si3N4 - matrix composites containing up to 5 vol. % hexagonal BN as a solid lubricant. A very low coefficient of friction which is necessary for high-speed cutting has been observed. Fracture toughness remained constant with increase of h-BN content while flexural strength changes with the hBN content have been found to depend upon the material homogeneity. The work has been supported by EU Funds in Poland under contract UDA-POIG.01.03-12-024/08-00.and has been realized in the frame of scientific-industrial consortium.
Pietro VINCENZINI, Sheldon WIEDERHORN and Paolo COLOMBO
G. Górny et al., "Ceramic Tool Materials for High Speed Cutting Process", Advances in Science and Technology, Vol. 65, pp. 56-60, 2010