Abstract: Cutting tool for machining by removal of matter from abrasive materials such as a material based on wood particles; tool characterized in that it is composed of a mounting endowed with at least one machining element, and of which at least the machining edge is composed of a high-homogeneity oxide ceramic platelet composed of Al2O3 and ZrO2, with this platelet being obtained from: a homogeneous Al2O3—XZrO mixture of Al2O3 nano-particles of average size smaller than 1 ?m, and ZrO2 nano-particles of tetragonal structure and average size smaller than that of the Al2O3 particles, with the ZrO2 content X being between 5 and 20% in mass of ZrO2 in relation to the total mass, with the mixture being formed into a plate via the gel-casting process followed by sintering or controlled cold isostatic compression, and with the plate (or platelets resulting from the division of the plate) being mechanically honed to produce the cutting edge.

Abstract: Cutting tool for machining by removal of matter from abrasive materials such as a material based on wood particles; tool characterized in that it is composed of a mounting endowed with at least one machining element, and of which at least the machining edge is composed of a high-homogeneity oxide ceramic platelet composed of Al2O3 and ZrO2, with this platelet being obtained from: a homogeneous Al2O3—XZrO mixture of Al2O3 nano-particles of average size smaller than 1 ?m, and ZrO2 nano-particles of tetragonal structure and average size smaller than that of the Al2O3 particles, with the ZrO2 content X being between 5 and 20% in mass of ZrO2 in relation to the total mass, with the mixture being formed into a plate via the gel-casting process followed by sintering or controlled cold isostatic compression, and with the plate (or platelets resulting from the division of the plate) being mechanically honed to produce the cutting edge.