Optimizing Wear Resistance via Brazing Temperature Adaption: Application into CBN/Cu-Sn-Ti Composites

Abstract

Cubic boron nitride (CBN)/Cu-Sn-Ti composites as potential superabrasive products are prepared. It is found that as the temperature increases, porosity keeps decreasing from 1123 K to 1223 K but becomes virtually constant afterward, which is inversely coupled to the reaction layer thickness variation. Weight loss arrives at the minimum value at 1223 K. Deep etching over the interfacial region reveals that TiN and TiB{sub 2} compounds have been generated, and their roles in determining wear properties are postulated.