AP23484450 " Development of innovative composite diamond-containing materials with high mechanical and operational characteristics for the equipment of drilling tools "

Relevance

The use of diamond impregnated crowns based on CAM Salmaz - (WC-6Co)-CrB2-ZrO2 makes it possible to increase the penetration rate by 1.5 times when drilling wells in strong and abrasive rocks, while increasing the durability of tools by 50-80 %

Purpose

The aim of the work is a comprehensive study of the combined effect of chromium diboride CrB2 and zirconium dioxide ZrO2 additives in the form of nanoscale powders (in amounts from 4 to 10% (by weight)) the structural changes of the carbide matrix in the vicinity of the diamond grain, its physico-mechanical properties, and the wear resistance of 25Cdiamond‒70.5WC‒4.5Co composites formed by plasma spark sintering at a temperature of 1450 °C at a pressure of 30 MPa, and the design of diamond impregnated crowns with enhanced mechanical and operational properties

Expected and achieved results

Samples of CAM Salmaz–(WC–6Co) were developed by plasma spark sintering at a temperature of 1450 °C at a pressure of 30 MPa‒CrB2‒ZrO2, the wear resistance of which is 3-4 times higher than the wear resistance of known analogues, and based on them, experimental diamond impregnated crowns have been developed, the wear resistance of which when drilling strong and abrasive rocks exceeds the wear resistance of known diamond impregnated crowns made by powder metallurgy methods, while reducing cost by 20-30%

Research team members with their identifiers (Scopus Author ID, Researcher ID, ORCID, if available) and links to relevant profiles