Abstract
Al_2O_3-30wt%TiC composites doped with 0.5wt%MgO and 0.3-1.0wt% Y_2O_3 additives are pressureless-sintered at different conditions such as temperatures, soaking times, and heating rates under an argon atmosphere. The physical, mechanical properties, and cutting performance of sintered composites were compared with commercial one. In this work, the Al_2O_3-30wt%TiC composites doped with 0.5wt%MgO and 0.3wt% Y_2O_3 sintered at 1800℃ obtained highest density of 97% of theoretical.
