Results 171 to 180 of about 7,543 (218)
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Diamond and Related Materials, 2000
Abstract The use of Raman spectroscopy, and in particular Raman line shifts, to measure stress in diamond and nitrides such as gallium nitride (GaN), is well known. In both diamond and GaN the application is principally to study stresses in thin films and at the substrate–thin film interface.
R.M. Erasmus, J.D. Comins, M.L. Fish
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Abstract The use of Raman spectroscopy, and in particular Raman line shifts, to measure stress in diamond and nitrides such as gallium nitride (GaN), is well known. In both diamond and GaN the application is principally to study stresses in thin films and at the substrate–thin film interface.
R.M. Erasmus, J.D. Comins, M.L. Fish
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Properties and Performance of Polycrystalline Cubic Boron Nitride
International Journal of Applied Ceramic Technology, 2015Cubic boron nitride ( CBN ) is a lightweight (ρ = 3.45 g/cm 3 ) ceramic material that is harder than all materials except diamond. As harder ceramics tend to perform better as armor, this material is of interest to the military community.
Jeffrey J. Swab +3 more
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Laser ablation and processing of polycrystalline cubic boron nitride cutting tool material
The International Journal of Advanced Manufacturing Technology, 2021Laser ablation of polycrystalline cubic boron nitride (PCBN) material has been a great interest to cutting tool design and machining community due to distinct advantages offered by laser surface texturing on flank and rake surfaces of cutting tools for improved friction, reduced tool wear, and enhanced effectiveness of coolant application.
Krzysztof Jarosz +3 more
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Diamond deposition on polycrystalline films of cubic boron nitride
Applied Physics Letters, 1993We have grown diamond films on films of cubic boron nitride (cBN). The cBN films were grown on Si(100) substrates using ion-assisted pulsed laser deposition. Fourier transform infrared (FTIR) spectroscopy indicated that the BN films contained ∼75% sp3-bonded cBN.
T. A. Friedmann +6 more
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Granularity-induced plastic deformation mechanism of pure polycrystalline cubic boron nitride
Ceramics International, 2020Abstract Combined X-ray diffraction(XRD) profile analysis and HRTEM observation, a method for exploration of plastic deformation in pure polycrystalline cubic boron nitride (PcBN) samples with sizes of primary cBN powders was developed. XRD profile results showed that the coarse-grained PcBN exhibited a larger micro-strain e, a greater deformation ...
Wenli Deng +3 more
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Development of matrix microstructure in polycrystalline cubic boron nitride ceramics
Journal of the European Ceramic Society, 2017Abstract The development of matrix microstructure in polycrystalline cubic boron nitride cutting tool materials has been investigated by X-ray diffraction and scanning and transmission electron microscopy combined with energy dispersive X-ray spectrometry.
K.E. Lindgren, A. Kauppi, L.K.L. Falk
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Electrical properties of Be-implanted polycrystalline cubic boron nitride films
Applied Physics Letters, 2008P -type conductivity of polycrystalline cubic boron nitride (cBN) films was achieved by implantation of beryllium ions. The effects of implantation doses and annealing on the phase composition and electrical properties of cBN films were studied. A reduction in resistivity by seven orders of magnitude was observed.
B. He +9 more
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Synthesis and characterization of polycrystalline sintered compacts of cubic boron nitride
Journal of Materials Science, 1986Synthetic cubic boron nitride (CBN) compacts are an important tool material used extensively for the machining of hardened steels. The paper describes work on the synthesis and characterization of CBN compacts. A 200 tonne cubic press has been used for the generation of high pressures.
B. K. Agarwala +2 more
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Structurization of single-phase polycrystalline materials based on cubic boron nitride
Soviet Powder Metallurgy and Metal Ceramics, 1987The authors study the crystallization of cubic boron nitrides by means of transmission electron microscopy and electron diffraction and the effects on crystal structure and microstructure of sintering, compacting, and heat treatment. Their results establish that the structurization of the nitrides is determined by structural phase transformations ...
V. F. Britun +3 more
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Optimization of machining of automotive components with polycrystalline cubic boron nitride
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2008While superhard cutting tools are being used increasingly in automotive plants worldwide, their adoption within the automotive supply chain is not universal. Important issues relating to successful implementation of superhard cutting tool materials in such applications include the ageing effect of grey iron, proper edge preparation of the cutting ...
R K Kountanya, P Boppana
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