Wear resistance and thermal stability enhancement of PDC sintered with Ti-coated diamond and cBN

Influence of Cu‐coated diamond addition on the microstructure and mechanical properties of WC‐based cemented carbides

“…13,16 The hardness of WC-8Ni-19.2 vol% Cu/Dia in this work is higher by about 4 GPa than that of the WC-10Co-20 vol% SiC/Dia, 16 and the flexural strength is higher by about 90 MPa than that of the WC-10Co-20 vol%W/Dia. behavior and the ceramic propert larly in the Sejnène region, northw the chemical composition, these c terized by high iron contents who of the ceramic materials is well k of fluxing agents as alkali and alk are necessary for low temperatur considered materials consist entir containing impurities, mostly ill iron, which serve as fluxing agen at low temperature [3][4][5][6] and appeare physical and mechanical propertie ramic materials. These materials can be used f they have appropriate chemical an tions composed of kaolinite and impurities including SiO 2 , CaO, F that are advantageous for its wor behavior, firing behavior, and qu ucts like mechanical strength and the suitability of these clayey ma products with low porosity and hig intended for applications for stone mentally important for the develo tor in Tunisia and the raw materi construction.…”

“…Because of the ultrahigh hardness, diamond has been widely used as wear‐resistant parts of the grinding and cutting tools, such as drilling bits or cutting blades, for the processing of hard materials like stone and concrete 1–3 . However, its inferior toughness against impact limits its application to some extent 1,4 . Great efforts have been made to expand the application field of diamond tools 5–8 .…”

“…[1][2][3] However, its inferior toughness against impact limits its application to some extent. 1,4 Great efforts have been made to expand the application field of diamond tools. [5][6][7][8] Cemented carbides, normally consisting of WC phase and metallic binder phase, are also widely used as grinding and cutting tools because of their high strength and outstanding toughness.…”

“…[12][13][14][15][16][17] The addition of diamond to cemented carbides could improve their hardness and also increase the fracture toughness, as a result of the crack deflection effect of the diamond particles. 14,15 Excellent mechanical properties confer an outstanding wear resistance to the DDCC, but only if no phase transformation of diamond into the low-hardness graphite behavior and the ceramic propert larly in the Sejnène region, northw the chemical composition, these c terized by high iron contents who of the ceramic materials is well k of fluxing agents as alkali and alk are necessary for low temperatur considered materials consist entir containing impurities, mostly ill iron, which serve as fluxing agen at low temperature [3][4][5][6] and appeare physical and mechanical propertie ramic materials.…”

Structural and Mechanical Properties of a-BCN Films Prepared by an Arc-Sputtering Hybrid Process

“…However, the heat resistance of DLC film depends on its structure; it has been reported that the heat resistance of hydrogenated amorphous carbon film (a-C:H) is ~300–350 °C [ 5 , 6 ], and that of tetrahedral amorphous carbon film (ta-C) is ~400–600 °C [ 7 ]. These values are considerably lower than that of c-BN film, ~1000–1360 °C [ 8 , 9 ]. In addition, DLC films cause diffusion wear against iron-based metals, and, hence, they cannot be coated on cutting tools for processing steel materials.…”