Results 61 to 70 of about 7,543 (218)
Photoluminescence of hexagonal boron nitride: effect of surface oxidation under UV-laser irradiation
, 2008 We report on the UV laser induced fluorescence of hexagonal boron nitride (h-BN) following nanosecond laser irradiation of the surface under vacuum and in different environments of nitrogen gas and ambient air.
Andrei V. Kanaev +45 more
core +1 more source
Modelling heat conduction in polycrystalline hexagonal boron-nitride films [PDF]
, 2017 We conducted extensive molecular dynamics simulations to investigate the thermal conductivity of polycrystalline hexagonal boron-nitride (h-BN) films.
Jiang, Jin-Wu +3 more
core +2 more sources
Application of Polycrystalline Cubic Boron Nitride for Cutting Tools.
THE REVIEW OF HIGH PRESSURE SCIENCE AND TECHNOLOGY, 1994 Polycrystalline cubic boron nitride (pcBN) materials, which are produced by sintering cBN powder and binder material under ultra-high pressure and temperature conditions, have so high hardness, high thermal conductivity and very weak affinity for ferrous metals that pcBN has been used for cutting ferrous metals such as hardened steel, cast iron, powder
openaire +2 more sources
Advanced Intelligent Discovery, EarlyView.We discovered novel materials with giant dielectric constants by combining first‐principles phonon calculations and machine learning. Screening 525 perovskites identified six candidates. RbNbO3 was synthesized under pressure and showed ε ≈ 800–1000. This validates our framework as a powerful tool for high‐performance dielectric materials discovery.
Hiroki Moriwake +9 more
wiley +1 more source
Effect of surface pretreatments on the deposition of polycrystalline diamond on silicon nitride substrates using hot filament chemical vapor deposition method [PDF]
, 2009 The deposition of diamond films on a silicon nitride (Si3N4) substrate is an attractive technique for industrial applications because of the excellent properties of diamond. Diamond possesses remarkable physical and mechanical properties such as chemical
Awang Sh'ri, Dayangku Noorfazidah
core +1 more source
Melting of B12P2 boron subphosphide under pressure
, 2016 Melting of boron subphosphide (B12P2) to 26 GPa has been studied by in situ synchrotron X-ray powder diffraction in a laser-heated diamond anvil cell, and by quenching and electrical resistance measurements in a toroid-type high-pressure apparatus. B12P2
Cherednichenko, Kirill A. +5 more
core +1 more source
Carbides and Nitrides of Zirconium and Hafnium. [PDF]
, 2019 Among transition metal carbides and nitrides, zirconium, and hafnium compounds are the most stable and have the highest melting temperatures. Here we review published data on phases and phase equilibria in Hf-Zr-C-N-O system, from experiment and ab ...
Hong, Qi-Jun +3 more
core +1 more source
Functionalizing Conductive Diamond: Recent Advance in Fabrication, Modifications, and Applications
Carbon Energy, EarlyView.This review highlights recent advancements in the synthesis, modification, and electrochemical applications of conductive diamond, particularly boron‐doped diamond (BDD). It emphasizes progress in fabrication methods, including CVD and HPHT, and explores modifications such as doping, surface terminations, and composite design, enabling significant ...
Ning Linghu, Xin Jiang, Jing Xu
wiley +1 more source
PCBN Performance in High Speed Finishing Turning of Inconel 718
Metals, 2018 Inconel 718 is a Ni superalloy widely used in high responsibility components requiring excellent mechanical properties at high temperature and elevated corrosion resistance.
José Díaz-Álvarez +3 more
doaj +1 more source
Optical Properties of BN in the cubic and in the layered hexagonal phases
, 2001 Linear optical functions of cubic and hexagonal BN have been studied within first principles DFT-LDA theory. Calculated energy-loss functions compare well with experiments and previous theoretical results both for h-BN and for c-BN.
Cappellini, Giancarlo +3 more
core +1 more source