WERKZEUG ZUM BEARBEITEN VON KOHLENSTOFFMATERIALIEN UND VERFAHREN ZUM HERSTELLEN DES WERKZEUGES

摘要

A tool for machining a carbon material is made of a material containing 50 to 95 vol.% of alumina matrix having a particle diameter of 0.1 to 2 microns and 5 to 50 vol.% of silicon carbide whisker having a diameter of 0.5 to 2.5 microns and a length of 10 to 80 microns. The alumina matrix and silicon carbide whisker are uniformly dispersed in and mixed with each other. The material has a density higher than 98% of the theoretical density. 10 to 50 vol.% of the alumina matrix may be replaced by TiB2 or ZrB2 having a particle diameter of 0.5 to 10 microns.