Abstract
CoTi and ZrO2 nanopowders were mechanochemically synthesized from CoTiO3 and Zr powders according to the reaction (2CoTiO3+3Zr→2CoTi+3ZrO2). The milled powders were then consolidated using high frequency induction heated sintering (HFIHS) within one minute under the applied pressure of 80MPa. The average hardness and fracture toughness of the nanostructured 2CoTi-3ZrO2 composite sintered from high energy ball milled powder were 1205kg/mm2 and 6.9MPam1/2, respectively. The mechanical properties of composite were compared with those of monolithic CoTi and ZrO2, respectively.
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