INSTRUMENTS AND METHODS OF EXPERIMENTAL PHYSICS

A characteristic study of the diamond layer and the contact between the diamond layer and the underlying two-layer diamond-cemented carbide plate

V. M. Prokhorov, A. P. Fedotkin, D. Kurzhumbaev, A. A. Pozdnyakov, S. A. Perfilov

Technological Institute of Superhard and New Carbon Materials of the Kurchatov Institute National Research Center

Abstract: The main element of drilling equipment is a rotary drilling bit, whose cutting elements move along the bottom of the well and cut through the rock. A two-layer diamond-carbide plate is the cutting element of a drill bit and consists of a layer of polycrystalline diamond compact (PDC) applied to a substrate of superhard alloy (WC-Co). Such a cutter made of a diamondcarbide plate is commonly referred to in the literature as a PDC cutter. The entire PDC cutter is manufactured using high pressure and high temperature technology and is attached to the drill bit by brazing, which in turn is called a PDC bit. The article presents the results of a study of a number of characteristics of the diamond layer and the interface between the diamond layer and the substrate for PDC cutters manufactured using the FSBSI Technological Institute for Superhard and New Carbon Materials technology.

Keywords: superhard materials, polycrystalline diamond compact (PDC), PDC cutter, interface.

Received: 11.11.2023
Revised: 17.10.2025
Accepted: 25.12.2023

DOI: 10.60797/IRJ.2025.160.68