Using Raman shift and FT-IR spectra as quality indices of oil bit PDC cutters

Abbas, Rafid K.; Musa, Kanaan Mohammad

doi:10.1016/j.petlm.2018.10.003

Cited by 12 publications

(3 citation statements)

References 8 publications

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“…However, considering that XRD demonstrated the formation of the β-Cr 2 N phase, it could be that the broad peak observed around 200-600 cm −1 is the sum of the scattering of the first-order active modes of β-Cr 2 N. The second-order active modes are observed. Boron (827 and 1166 cm -1 ) and WC (267, 716, and 805 cm -1 ) active modes were not observed or are overlapped with other signals [63][64][65][66].…”

Section: Spectroscopy Analysismentioning

confidence: 89%

Mechanosynthesis of β-Cr2N using BN as the nitrogen source

et al. 2022

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The mechanosynthesis of hexagonal chromium nitride (?-Cr2N) is explored by the high-energy ball-milling of Cr and h-BN. The ?-Cr2N onset formation is observed after 20 min of milling, although the complete reaction is achieved at 100 min of milling. Two different 1Cr:1BN and 2Cr:1BN molar ratios were evaluated, observing that the molar ratio plays an essential role in the end products during mechanosynthesis. The products were characterized by XRD, FTIR and Raman spectroscopy, thermal analysis (TGA and DSC), SEM, and surface area (BET). A preliminary phase stability map vs. accumulative energy (?Evaccum) has been constructed. The accumulative energy needed for the complete ?-Cr2N formation is ?Evaccum > 720 kJ/g.

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Section: Spectroscopy Analysismentioning

confidence: 89%

Mechanosynthesis of β-Cr2N using BN as the nitrogen source

et al. 2022

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“…The Polycrystalline Diamond Compact (PDC) cutter is the most basic cutting unit of the PDC bit, it is responsible for the main task of breaking the rock, so its performance has a decisive influence on the rock disintegration effect of PDC bit [1]. Therefore, the improvement and innovation of PDC cutter is the main direction of PDC drill bit technology innovation, and it is easy to get the effect of rock disintegration with half the effort.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experimental Study on Rock Disintegration Characteristics of Special-shaped PDC Cutters

TİAN

2023

Gazi University Journal of Science

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“…During high pressure and high temperature (HPHT) synthesis processes, a significant diamond-diamond (D-D) bond forms between diamond particles by a dissolution and re-precipitation process, leading to the formation of the PCD layer, which is firmly bonded with the carbide substrate [1,5,6]. PDCs have been widely used in oil and gas drilling, ore mining, and the machining of non-ferrous metals and hard materials due to their high wear resistance and hardness, good impact resistance, and excellent brazing performance [2,[7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Research on Microstructure, Synthesis Mechanisms, and Residual Stress Evolution of Polycrystalline Diamond Compacts

Ni,

Chen,

Yang

et al. 2023

Crystals

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The microstructure and residual stress of polycrystalline diamond compact (PDC) play crucial roles in the performance of PDCs. Currently, in-depth research is still to be desired on the evolution mechanisms of microstructure and residual stress during high pressure high temperature (HPHT) synthesis process of PDCs. This study systematically investigated the influencing mechanisms of polycrystalline diamond (PCD) layer material design, especially the Co content of the PCD layer, on microstructure and residual stress evolution in PDCs via Raman spectroscopy and finite element micromechanical simulation. The research shows that when the original Co content of the PCD layer is higher than 15 wt.%, the extra Co in the PCD layer will migrate backwards towards the carbide substrate and form Co-enrichment regions at the PCD–carbide substrate interface. As the original Co content of the PCD layer increases from 13 to 20 wt.%, the residual compressive stress of diamond phase at the upper surface center of the PCD layer gradually decreases and transforms into tensile stress. When the original Co content of the PCD layer is as high as 30 wt.%, the residual stress transforms back into significant compressive stress again. The microstructure-based micromechanical simulation at the PCD–carbide substrate interface shows that the Co-enrichment region is the key for the transformation of the residual stress of the diamond phase from tensile stress into significant compressive stress.

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Using Raman shift and FT-IR spectra as quality indices of oil bit PDC cutters

Cited by 12 publications

References 8 publications

Mechanosynthesis of β-Cr2N using BN as the nitrogen source

Mechanosynthesis of β-Cr2N using BN as the nitrogen source

Simulation and Experimental Study on Rock Disintegration Characteristics of Special-shaped PDC Cutters

Research on Microstructure, Synthesis Mechanisms, and Residual Stress Evolution of Polycrystalline Diamond Compacts

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