Results 71 to 80 of about 206 (118)
Application of Polycrystalline Diamond (PCD) to EDM (1st Report)
Journal of The Japan Society of Electrical Machining Engineers, 2008 Sadao SANO +3 more
openaire +2 more sources
Synthesis and characterization of ϕ58mm polycrystalline diamond compact
Jin'gangshi yu moliao moju gongcheng, 2016 The polycrystalline diamond compact with 58 mm diameter was synthesized on domestic cubic press.Scanning acoustic microscope(SAM)analysis showed that there were no defects such as delamination,crack and non-uniform thickness of PCD layer in batch samples.
LI Sicheng, QU Jilai, FANG Haijiang
doaj
Development overview of composite superhard material industry in China
Jin'gangshi yu moliao moju gongcheng, 2017 This paper gives an overview of 20 years development of the composite superhard materials in China's superhard material industry.It expatiates the progress in the high speed development period & transformation and upgrading period and the future ...
MA Shanshan, FANG Haijiang
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Contact damage and residual strength in polycrystalline diamond (PCD)
Diamond and Related Materials, 2016Abstract The tolerance to contact damage of polycrystalline diamond (PCD) composites is investigated. Three different PCD grades are considered. Contact damage is extrinsically introduced by spherical indentation techniques, an approach well-established to evaluate damage tolerance issues in other hard materials. Such damage is induced on the surface
Valentine Kanyanta, Luis Llanes
exaly +2 more sources
Suppression of abnormal grain growth in fine grained polycrystalline diamond materials (PCD)
International Journal of Refractory Metals and Hard Materials, 2013Abstract During the sintering of fine grained (0.5 μm) polycrystalline diamond (PCD) composite materials under high pressure-high temperature (HPHT) conditions, abnormal grain growth (AGG) of the diamond was observed. These abnormally grown diamond grains were up to several hundreds of microns in diameter.
Iakovos Sigalas, Björn Matthey
exaly +2 more sources
Preparation and characterization of sintered polycrystalline diamond (PCD) with 15 wt% Nb binder
Diamond and Related Materials, 2020This study aimed to obtain and characterize a polycrystalline diamond body (PCD) sintered with 15 wt% Nb binder, through the high-pressure high-temperature (HPHT) sintering techniques at three different temperatures of 1650 °C, 1750 °C, and 1850 °C, with a pressure of 7.7 GPa. Characterizations on the starting powders were performed before and after
Marcello Filgueira
exaly +3 more sources
Science China: Physics, Mechanics and Astronomy, 2010
Polycrystalline diamond compacts (PDC) were synthesized using diamond powder of average crystal size 3–20 μm by the Ni70Mn25Co5 alloy infiltration technique at high temperature and high pressure (HPHT). The surface residual stress of polycrystalline diamond (PCD) layer was measured using micro-Raman spectroscopy with hydrostatic stress model and X-ray ...
Ma Hongan, Jia Xiaopeng
exaly +2 more sources
Polycrystalline diamond compacts (PDC) were synthesized using diamond powder of average crystal size 3–20 μm by the Ni70Mn25Co5 alloy infiltration technique at high temperature and high pressure (HPHT). The surface residual stress of polycrystalline diamond (PCD) layer was measured using micro-Raman spectroscopy with hydrostatic stress model and X-ray ...
Ma Hongan, Jia Xiaopeng
exaly +2 more sources
International Journal of Refractory Metals and Hard Materials, 2020
In this research, the effect of adding 2.5, 5.0 and 10 wt% niobium (Nb) as a binding agent was investigated for High Pressure-High Temperature (HPHT) sintering of polycrystalline diamond (PCD). Samples were sintered at 1750 °C and 7.7 GPa. Detailed characterization of the as-sintered materials revealed a uniform dispersion of the Nb additives in the ...
Marcello Filgueira +2 more
exaly +3 more sources
In this research, the effect of adding 2.5, 5.0 and 10 wt% niobium (Nb) as a binding agent was investigated for High Pressure-High Temperature (HPHT) sintering of polycrystalline diamond (PCD). Samples were sintered at 1750 °C and 7.7 GPa. Detailed characterization of the as-sintered materials revealed a uniform dispersion of the Nb additives in the ...
Marcello Filgueira +2 more
exaly +3 more sources
Advanced Materials Research, 2010
Electrically conductive polycrystalline composite diamond (EC-PCD) material, which consists of electrically conductive diamond grits, has recently been developed for the purpose of providing the material with both excellent tool property and machinability. This paper deals with the material property and the wear characteristics of EC-PCD.
Manabu Iwai +2 more
exaly +2 more sources
Electrically conductive polycrystalline composite diamond (EC-PCD) material, which consists of electrically conductive diamond grits, has recently been developed for the purpose of providing the material with both excellent tool property and machinability. This paper deals with the material property and the wear characteristics of EC-PCD.
Manabu Iwai +2 more
exaly +2 more sources
Drilling of SiCp/Al Metal Matrix Composites with Polycrystalline Diamond (PCD) Tools
Materials and Manufacturing Processes, 2012High-volume-fraction SiCp/Al composites have attracted considerable interest for their excellent thermo-physical properties. However, popularization of high volume fraction SiCp/Al composites is still hampered by their poor machinability. In this study, the influences of the cutting speed and feed rate on the drilling performance of SiCp/Al composites ...
S. T. Huang, L. Zhou, J. Chen, L. F. Xu
exaly +2 more sources