Development of a novel triple-layer polycrystalline diamond compact

Mashhadikarimi, Meysam; Medeiros, Regina Bertília Dantas de; Barreto, Lucas; Gurgel, Diego Pires; Gomes, Uílame Umbelino; Filgueira, Marcello

doi:10.1016/j.diamond.2020.108182

Cited by 17 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Owing to the catalytic effect of Co, which leads to the reduction of its thermal stability, the graphitization temperature of PCD decreases to 700 • C, which seriously affects the lifetime of PCD at high-temperature conditions [15,16]. In addition, the substantial difference in the coefficient of thermal expansion between diamond (~1.2 × 10 −6 ) and Co (~12.3 × 10 −6 ) leads to thermal stresses and microcracks at high temperatures, which weakens the performance of PCD [17].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Carbide Particle-Toughened Si–B System of High Thermostability Polycrystalline Diamond by HPHT Sintering

Zhu

2023

Materials

View full text Add to dashboard Cite

In this research, we report the synthesis of Si–TmC–B/PCD composites using Si, B, and transition metal carbide particles (TmC) as binders at high pressure and high temperature (HPHT method, 5.5 GPa and 1450 °C). The microstructure, elemental distribution, phase composition, thermal stability, and mechanical properties of PCD composites were systematically investigated. The Si–B/PCD sample is thermally stable in air at 919 °C. The initial oxidation temperature of the PCD sample with ZrC particles is as high as 976 °C, and it also has a maximum flexural strength of 762.2 MPa, and the highest fracture toughness of 8.0 MPa·m1/2.

show abstract

Section: Introductionmentioning

confidence: 99%