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Si3N4 ceramic cutting tool sintered with CeO2 and Al2O3 additives with AlCrN coating
Ceramic cutting tools are showing a growing market perspective in terms of application on machining operations due to their high hardness, wear resistance, and machining without a cutting fluid, therefore are good candidates for cast iron and Nickel superalloys machining. The objective of the present paper was the development of Si 3 N 4 based ceramic cutting insert, characterization of its physical and mechanical properties, and subsequent coating with AlCrN using a PVD method. Thedoi:10.1590/s1516-14392011005000077 fatcat:57x4irst3vd3tpd445ft5u23cq