Results 21 to 30 of about 438 (173)

Thermodynamic Analysis about Nucleation and Growth of Cubic Boron Nitride Crystals in the hBN-Li3N System under High Pressure and High Temperature

Entropy, 2015
The nucleation of cubic boron nitride (cBN) single crystals synthesized with lithium nitride (Li3N) as a catalyst under high pressure and high temperature (HPHT) was analyzed.
Xiao-Fei Guo, Bin Xu, Wen Zhang, Mei-Zhe Lv, Hong-Mei Yang, Xiao-Hong Fan   +5 more
doaj   +1 more source

Analysis of Cubic Boron Nitride Single Crystal Defects Growth under High Temperature and High Pressure

Journal of Chemistry, 2020
Cubic boron nitride (cBN) single crystals are synthesized under high temperature and high pressure in the Li-based system. The growth defects on hexagonal and triangular (111) surfaces of cBN single crystals after rapid cooling are discussed systemically
Lichao Cai, Bin Xu, Meizhe Lv, Feng Jia, Xingdong Yuan   +4 more
doaj   +1 more source

Tribological behaviour of alumina-based nanocomposites reinforced with uncoated and Ni-coated cubic boron nitride

Journal of Materials Research and Technology, 2019
Currently, there is a rising demand to develop composite materials with outstanding tribological properties along with excellent thermal-mechanical properties for harsh tribological applications.
Muhammad Umar Azam, Bilal Anjum Ahmed, Abbas Saeed Hakeem, Hafiz Muzammil Irshad, Tahar Laoui, Muhammad Ali Ehsan, Faheemuddin Patel, Fazal Ahmad Khalid   +7 more
doaj   +1 more source

High-Pressure Design of Advanced BN-Based Materials

Molecules, 2016
The aim of the present review is to highlight the state of the art in high-pressure design of new advanced materials based on boron nitride. Recent experimental achievements on the governing phase transformation, nanostructuring and chemical synthesis in
Oleksandr O. Kurakevych, Vladimir L. Solozhenko   +1 more
doaj   +1 more source

Peculiarities of finishing working elements of cutting tools made of polycrystalline cubic boron nitride of BL group

Технічна інженерія, 2022
The use of hardened steels and high-hardness alloys provides the necessary mechanical and operational properties of machine parts and mechanisms, as a result of which the demand for the use of such materials is constantly growing.
A.O. , Yu.O. , S.A., S.An.
doaj   +1 more source

Effect of argon flow rate and direct current bias on the growth of boron nitride coating in low-temperature plasma

AIP Advances, 2022
A microwave plasma chemical vapor deposition system was used to synthesize cubic boron nitride (cBN) coatings on diamond seeded silicon substrates using direct current (DC) bias.
Kallol Chakrabarty, Paul A. Baker, Vineeth M. Vijayan, Shane A. Catledge   +3 more
doaj   +1 more source

Effect of laser-assisted ultrasonic vibration dressing parameters of a cubic boron nitride grinding wheel on grinding force, surface quality, and particle morphology

Reviews on Advanced Materials Science, 2021
In this article, the laser-assisted ultrasonic vibration dressing technique was applied to the cubic boron nitride (CBN) grinding wheel to study the effect of various process parameters (namely, laser power, dressing depth, feed rate, and grinding wheel ...
Yang Zhibo, Sun Wang, He Dongyu, Han Daocheng, Wang Wei, Guo Qiang, Zhang Yanru   +6 more
doaj   +1 more source

The Effect of Cutting Tool Geometry on Surface Integrity: A Case Study of CBN Tools and the Inner Surface of Bearing Rings

Applied Sciences, 2023
In this paper, a practical issue of the application of cubic boron nitride (CBN) cutting tools for the machining of steel 100Cr6 thin-walled bearing rings is addressed.
Lenka Cepova, Robert Cep, Leszek Chalko, Stepanka Dvorackova, Miroslav Trochta, Miroslaw Rucki, Libor Beranek, Ondrej Mizera, Volodymyr Chyshkala   +8 more
doaj   +1 more source

Efficiency of face milling hardened steels with cubic boron nitride tools

Технічна інженерія
Face milling of hardened steels is an important process in modern mechanical engineering, as it allows achieving high precision and quality of machined surfaces of machine parts.
V.S. Antonyuk
doaj   +1 more source

Tribological Properties of WCCo/cBNComposites Produced by Pulse Plasma Sintering [PDF]

Archives of Metallurgy and Materials, 2018
In view of their advantageous properties (high hardness, good frictional wear resistance, chemical and thermal stability at elevated temperatures), cubic boron nitride (cBN) and tungsten carbide (WC) are commonly used for the fabrication of cutting tools.
J. Wachowicz, T. Truszkowski, M. Rosiński, M. Ossowski, G. Skrabalak, M. Cyrankowski   +5 more
doaj   +1 more source