Results 1 to 10 of about 13,468 (252)

Fabrication of polycrystalline cubic boron nitride composites under high pressure [PDF]

Processing and Application of Ceramics, 2023
The PCBN (polycrystalline cubic boron nitride) composites were synthesized by mixing cubic boron nitride micropowders with Ti and Al micropowders at a certain mass ratio under high temperature and ultra-high pressure conditions.
Mo Peicheng, Chen Jiarong, Chen Chao, Qin Haiqing, Lin Feng   +4 more
doaj   +3 more sources

Surface defect detection model of laser cutting polycrystalline cubic boron nitride tool based on asymptotic fusion strategy [PDF]

Scientific Reports
Due to the polycrystalline cubic boron nitride tool has the characteristics of high hardness, brittleness, etc., it is easy to break the tool or produce defects in the laser cutting process, which affects the cutting performance of the tool.
Anfu Zhu, Jiaxiao Xie, Heng Guo, Jie Wang, Zilong Guo, Lei Xu, SiXin Zhu, Zhanping Yang, Bin Wang   +8 more
doaj   +3 more sources

Ultrasonic Deposition of Carbon Nanotubes on Polycrystalline Cubic Boron Nitride Composites. [PDF]

Materials (Basel), 2021
Polycrystalline cubic boron nitride (PcBN) are super-hard materials with high hardness and excellent abrasive resistance, widely used in cutting tools for precision machining of automotive and aerospace parts; however, their brittle properties make them prone to premature failure.
Pacella M, Saremi-Yarahmadi S, Lamberti L.   +2 more
europepmc   +5 more sources

Fabrication of Polycrystalline Cubic Boron Nitride/Metal Composite Particles by Surface Metallization Followed by Electroless Deposition Technique. [PDF]

Materials (Basel), 2021
Polycrystalline cBN/copper composite abrasive particles were prepared by an electroless powder coating process. Ti metallization and tin/silver metallization techniques were used to improve the coating process by depositing an autocatalytic metallic ...
Mohamed Daoush W, Saad Alkhuraiji T, Alshammri AD.   +2 more
europepmc   +2 more sources

Influence of sintering temperature on structure and mechanical properties of polycrystalline cubic boron nitride composites [PDF]

Processing and Application of Ceramics
Polycrystalline cubic boron nitride (PcBN) cutting tool materials were prepared by mixing cBN (85 wt.%) and TiN-Ti-Co (15 wt.%) micropowders under high temperature and ultra-high pressure.
Mo Peicheng, Chen Jiarong, Pan Xiaoyi, Zhang Jun, Li Kai, Chen Chao   +5 more
doaj   +2 more sources

Binderless Polycrystalline Cubic Boron Nitride Sintered Compacts for Machining of Cemented Carbides

Ceramics
High-purity, superhard, binderless polycrystalline cubic boron nitride (BL-PCBN) was obtained by direct hBN to cBN transformation in a toroid-type high-pressure apparatus at a pressure of 8.0 GPa and temperature of 2250 °C (HPHT-DCS; high-pressure, high ...
Alexander S. Osipov, Piotr Klimczyk, Igor A. Petrusha, Yurii O. Melniichuk, Lucyna Jaworska, Kinga Momot, Yuliia Rumiantseva   +6 more
doaj   +2 more sources

Thermal properties of polycrystalline cubic boron nitride sintered under high pressure condition [PDF]

Science of Sintering, 2018
The excellent thermal and chemical properties of cubic boron nitride (cBN) indicate that it is potential materials to prepare the thermal dissipate substrate applied in the electronic packaging.
Leng Chunwei, Hu Xiaojun, Xie Hongliang, Shen Chunhua   +3 more
doaj   +3 more sources

Development of a Mathematical Model of the Synthesis of a Polycrystalline Superhard Material Based on Cubic Boron Nitride from Wurzite Boron Nitride Modified with Aluminum

Механика машин, механизмов и материалов, 2022
A mathematical model is developed for the technological process of synthesis under conditions of high pressures P and temperatures T of a polycrystalline superhard material based on cubic boron nitride (cBN).
Vladimir T. Senyut, Alexander M. Parnitsky, Viktor I. Zhornik   +2 more
doaj   +2 more sources

Simulation of friction between diamond and polycrystalline cubic boron nitride

Procedia CIRP, 2021
Published by Elsevier, Amsterdam [u.a.]
Müller, Ulrich Hermann, Prinz, Sebastian, Barth, Sebastian, Bergs, Thomas   +3 more
openaire   +3 more sources

On the cutting force of micro-textured polycrystalline cubic boron nitride cutting tool for powder metallurgy materials

Advances in Mechanical Engineering, 2020
Micro-textured cutting tools were widely reported due to the improved cutting performance, for example, the reduction of cutting forces. However, the cutting performance is significantly dependent on the parameters of the micro-textures.
Haidong Yang, Zhengguang Han, Xiquan Xia, Qidong Wang, Juchen Zhang, Weijie Chang, Zhenhua Qing, Huohong Tang, Shunhua Chen   +8 more
doaj   +2 more sources