Results 141 to 150 of about 757 (179)
Some of the next articles are maybe not open access.
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
Thermal effects on tribological behaviors of polycrystalline cubic boron nitride
Ceramics International, 2021Abstract In order to understand the thermal damage mechanisms of polycrystalline cubic boron nitride (PcBN) under elevated temperature and the following influences on its tribological behaviors, the physicochemical characteristic of annealed PcBN under various temperatures was investigated by X-ray diffraction, Scanning electron microscopy and energy
Dezhong Meng +6 more
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
Influence of sintering conditions on the properties of polycrystalline cubic boron nitride
Soviet Powder Metallurgy and Metal Ceramics, 1986For the purpose of a further study of the sintering process of beta-BN grains into polycrystalline compacts, a study was made of the influence of sintering temperature and grain size on the microstructure, width of the x-ray diffraction lines, and certain physical properties of polycrystalline specimens of beta-BN. Sintering of beta-BN grains occurs in
V. B. Shipilo +3 more
openaire +1 more source
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 tools,
R K Kountanya, P Boppana
openaire +1 more source
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
openaire +1 more source
The influence of microstructure on the fracture properties of polycrystalline cubic boron nitride
Computational Materials Science, 2015Abstract The effect of microstructure on the fracture properties of polycrystalline cubic boron nitride (PcBN) for industrial applications has been investigated numerically using the finite volume method. Representative synthetic microstructures have been created using a modified Voronoi tessellation procedure and these have been implemented in a ...
P. Alveen +4 more
openaire +1 more source