Pecularity receiving of instrumental materials ultradispersed mixes Al2O3 with added nanopowder SiC

Abstract

The basis of numerous types of tool ceramics is aluminum oxide. Along with the advantages (high hardness, especially at elevated temperatures, chemical inertness and, accordingly, high wear resistance, unlimited raw materials), oxide ceramics have a number of disadvantages: high brittleness, low resistance to thermal and mechanical shocks. Despite this, materials based on aluminum oxide have found application as a cutting tool for processing high-hard metal alloys and other difficultto-cut materials.