Influence of the powder metallurgy route on the mechanical properties of Cu–Cr–diamond composites

Abstract Metal-bonded grinding tools are commonly based on copper as bond material and possess low porosity. The powder metallurgic fabrication the applied process parameters have a high influence mechanical properties of these layers. In this study, Cu–diamond composites fabricated through Field Assisted Sintering Technology with variation holding time, temperature, pressure, chromium particle size. addition to can ensure higher adhesion diamonds carbide formation within interface bonding matrix. coating diamond chromium-carbide is mainly controlled by size, which leads critical strength decreasing Maximum 463 N/mm 2 reached using an average size 10 µm. Increasing time decreases porosity increases composites. An increase sintering temperature from 900 1040 °C decrease due local melting copper. interlocking their concentration 50 vol% results in relatively above 7%. Article Highlights Modelling Addition in-situ formed carbide-layer when Smaller sizes significant stability CuCr–diamond