Electrosintering Production of Novel Grade Diamond Composites
This paper presents the results on the strength evaluation of sintered diamond-based composites with Co binder. The method of intensive electrosintering with a short heating pulse was applied by a high pressure of 0.5 GPa and a time of 2-40 s. Composites with different compositions and for different purposes, such as rock drilling and dressing tools, were investigated. The reactive cell was design with the purpose of preserving the diamond properties from the detrimental sintering temperature exposure. The results of this electrosintering technology permitted to obtain improved composites to be used in tools with higher indexes of performance and productivity.
Lucio Salgado and Francisco Ambrozio Filho
G. S. Bobrovinitchii et al., "Electrosintering Production of Novel Grade Diamond Composites", Materials Science Forum, Vols. 660-661, pp. 854-859, 2010