Results 21 to 30 of about 5,777 (160)

Technology Features of Diamond Coating Deposition on a Carbide Tool

C, 2022
The production of carbide tools with polycrystalline diamond coatings, which are used for processing modern carbon composite materials, includes a number of technological techniques that ensure reliable adhesion of the coating to the substrate.
Evgeny Ashkinazi, Sergey Fedorov, Alexander Khomich, Vladimir Rogalin, Andrey Bolshakov, Dmitry Sovyk, Sergey Grigoriev, Vitaly Konov   +7 more
doaj   +1 more source

Recovery of Diamond and Cobalt Powders from Polycrystalline Drawing Die Blanks via Ultrasound Assisted Leaching Process—Part 2: Kinetics and Mechanisms

Metals, 2020
The leaching of industrial polycrystalline diamond (PCD) blanks in aqua regia at atmospheric pressure between 60 °C and 80 °C was performed using an ultrasound to improve the rate of cobalt removal in order to be able to reuse very expensive ...
Ferdinand Kießling, Srecko Stopic, Sebahattin Gürmen, Bernd Friedrich   +3 more
doaj   +1 more source

Analysis on the lapping uniformity of MPCVD polycrystalline diamond wafer

Jin'gangshi yu moliao moju gongcheng, 2022
In the process of free abrasive lapping, the driving mode and process parameters directly affect the flatness and surface roughness of the workpiece. To explore the effect of free abrasive lapping process parameters based on rotary swing drive on the ...
Yuchun XU, Jianhui ZHU, Ningchang WANG, Chaoyu SHI, Yanjun ZHAO, Junyong SHAO, Shuai XU   +6 more
doaj   +3 more sources

Computer simulation of the mechanism for the synthesis of carbonado diamond

Materials Research, 2006
The synthesis mechanism associated with the formation of carbonado type polycrystalline diamond has been analyzed. This analysis was performed by computer simulation of the field of temperature developed at the moment of graphite transformation into ...
João José de Assis Rangel, Ruben Rosenthal, Guerold Sergueevitch Bobrovnitchii, Sergio Neves Monteiro   +3 more
doaj   +1 more source

Experimental research on torque characteristic and weight distribution of the polycrystalline diamond compact–roller hybrid bit

Advances in Mechanical Engineering, 2019
On the basis of structural features and working principle of polycrystalline diamond compact–roller hybrid drill bit, a detachable experiment device with adjustable structural parameters are designed and manufactured for the hybrid bit, and accordingly ...
Shi-wei Niu, Hua-lin Zheng, Ying-xin Yang, Xu Tong, Lian Chen, Yong Liu, Ze-jun Bao   +6 more
doaj   +1 more source

High Performance of Normally‐On and Normally‐Off Devices with Highly Boron‐Doped Source and Drain on H‐Terminated Polycrystalline Diamond

Advanced Electronic Materials, 2023
Diamond exhibits large application potential in the field of power electronics, owing to its excellent and desirable electronic properties. However, the main obstacles to its development originate from the small‐sized single‐crystal wafers and the ...
Xiaohua Zhu, Siwu Shao, Siyi Chan, Juping Tu, Kosuke Ota, Yabo Huang, Kang An, Liangxian Chen, Junjun Wei, Jinlong Liu, Chengming Li, Hiroshi Kawarada   +11 more
doaj   +1 more source

Influencing factors of compressive strength of diamond micro-powder deposits and the corresponding influence on the mechanical properties of polycrystalline diamond composite teeth

Fenmo yejin jishu
A method for determining the compressive strength of diamond micro-powder deposits was studied, the force state of this method was close to that of polycrystalline diamond products, and the diamond micro-powder strength characterized by static pressure ...
YANG Kun
doaj   +1 more source

Densification and physical properties of SiC-diamond polycrystalline materials produced by pressureless sintering

Fenmo yejin jishu
SiC-diamond polycrystalline materials doping by diamond with different mass fraction were prepared by pressureless sintering with AlN−Y2O3−Sc2O3 as liquid phase.
ZHANG Xiuling, CHEN Yuhong, QI Wubin, ZHANG Qiang, HAI Wanxiu   +4 more
doaj   +1 more source

Optimization model for polycrystalline diamond compact bits based on reverse design

Advances in Mechanical Engineering, 2018
To improve the effectiveness and efficiency of bit cutter design, a new reverse design method is put forward based on the geometry of a polycrystalline diamond compact bit.
Zhijiu Ai, Yiwei Han, Yuchun Kuang, Yuanji Wang, Mingming Zhang   +4 more
doaj   +1 more source

Research progress of microstructures and plastic deformation mechanisms for nano polycrystalline diamond

Jin'gangshi yu moliao moju gongcheng, 2018
Nano polycrystalline diamond is a kind of material formed by direct bonding of diamond grains with grain sizes less than 100 nm. The hardness of nano polycrystalline diamond synthesized by the direct transformation of graphite at high temperature and ...
HE Genchun, XU Chao, LIU Chunmei
doaj