Results 211 to 220 of about 67,886 (283)

Microstructural evolution and mechanical properties of NiCrAlYSi+NiAl/cBN abrasive coating coated superalloy during cyclic oxidation

, 2021
Cyclic oxidation behavior of NiCrAlYSi + NiAl/cBN abrasive coating at 900 °C and the mechanical properties of the coating-substrate system were investigated.
Liu Yiliao, Liu Yiliao, Jiaxin Sun, Wuxia Li, Wuxia Li, Wenling Gu, Wenling Gu, Z. Pei, J. Gong, Cunmin Sun   +9 more
semanticscholar   +1 more source

Wear resistance and thermal stability enhancement of PDC sintered with Ti-coated diamond and cBN

, 2020
Ti-coated diamond with different particle sizes and proper amounts of cubic boron nitride (cBN) was used to fabricate polycrystalline diamond composite (PDC) with improved wear resistance and thermal stability under high temperature and high pressure (5 ...
Zhaoran Chen, Dejiang Ma, Shanmin Wang, Dai Wenhao, P. Zhu, Zhu Yiqing, Baochang Liu   +6 more
semanticscholar   +1 more source

Phase stability and mechanical properties of Al2O3-cBN composites prepared via spark plasma sintering

Diamond and related materials, 2020
The sintering behaviours, phase compositions, microstructures, and mechanical properties of Al2O3-based matrix composites reinforced with up to 20 vol% of cubic boron nitride (cBN, super-hard phase) were investigated.
P. Klimczyk, P. Wyżga, J. Cyboroń, J. Laszkiewicz-Łukasik, M. Podsiadło, S. Cygan, L. Jaworska   +6 more
semanticscholar   +1 more source

Oxidation and hot corrosion behavior of NiCrAlYSi+NiAl/cBN abrasive coating

, 2020
In order to improve the oxidation and hot corrosion resistance of blades tip as well as the sealing performance of gas turbine engine, a NiCrAlYSi + NiAl/cBN abrasive coating was prepared by combining arc ion plating, electroplating and above-pack ...
Liu Yiliao, J. Sun, Z. Pei, Wuxia Li, J. H. Liu, J. Gong, Cunmin Sun   +6 more
semanticscholar   +1 more source

Concentrations of THC, CBD, and CBN in commercial hemp seeds and hempseed oil sold in Korea.

Forensic Science International, 2019
Hemp seeds and hempseed oil are marketed on- and off-line as health foods and cosmetics and have been reported to have high nutrient contents. However, because of the various side effects of cannabinoids, especially △9-tetrahydrocannabinol (THC), many ...
E. Jang, Hyojeong Kim, S. Jang, Jaesin Lee, S. Baeck, Sanghwan In, Eunmi Kim, Yong-Ung Kim, Eunyoung Han   +8 more
semanticscholar   +1 more source

CBN-Kornverschleißmodellierung/Numerical modeling of CBN grain wear during single grain engagement – CBN-grain wear modelling

wt Werkstattstechnik online, 2021
Dieser Beitrag stellt die numerische Modellierung des CBN-Kornverschleißes beim Einkorneingriff mit der Finite-Elemente-Methode vor. Es wird erstmalig eine dreidimensionale Verschleißsimulation unter Verwendung realer CBN- Korngeometrien im Korn-Werkstückkontakt durchgeführt. Dazu werden drei reale Korngeometrien simuliert, um die Verschleißmechanismen
Marc Bredthauer, Patrick Mattfeld, Sebastian Barth, Thomas Bergs   +3 more
openaire   +1 more source

Effect of tungsten content on microstructure and mechanical properties of PCBN synthesized in cBN-Ti-Al-W system

, 2020
Polycrystalline cubic boron nitride (PCBN) compacts were prepared using the mixture of cubic BN and Ti-Al-W powders at 5.5 GPa and 1550 °C for 10 min. The influence of different Tungsten (W) content on composition, microstructure, porosity, mechanical ...
P. Mo, Chen Chao, Jia Guang, Jiarong Chen, Delong Xie, Xiao Leyin, Xiaoyi Pan, Linping Feng   +7 more
semanticscholar   +1 more source

????????????-?????????????? ?????????????????? ?? ???????????????? cBN???????????????Al, cBN???ZrN???Al ?????? ?????? ???????????????? ?????? ?????????????? ???????????? ?? ?????????????????????? ?????????????????? ????????????????????

2018
The phase composition of the samples gained at a high pressure from an intermixture of two compositions (cBN???????????????Al and cBN???ZrN???Al) is explored at change of temperature (1300???2300 K) and durations (5???300 s) sintering. Properties of samples (density, hardness, electroresistance) in connection with modes of a sintering are studied.
openaire   +3 more sources

Effect of the grit shape on the performance of vitrified-bonded CBN grinding wheel

, 2020
This paper deals with the effect of the CBN grit shape on the grindability of a low alloy chrome steel, 100Cr6. Firstly, a simple wheel-workpiece interaction model is introduced to investigate the grinding response.
Nastja Macerol, L. Franca, P. Krajnik
semanticscholar   +1 more source

Study of fragmentation in cBN powders under ultra-high pressure

, 2020
Studying the fragmentation law and refinement of cubic boron nitride powder under ultra-high pressure is crucial to producing a high-strength, high-density polycrystalline cubic boron nitride.
H. Xie, F. Deng, Xuefeng Yang, Shun Han
semanticscholar   +1 more source