Silicon-doped (Si-doped) diamond films were deposited on a Co-cemented tungsten carbide (WC-Co) substrate using the hot filament chemical vapor deposition (HFCVD) method with a mixture of acetone, tetraethoxysilane (TEOS), and hydrogen as the recant source. The as-deposited doped diamond films were characterized with field emission scanning electron microscopy (FE-SEM), Raman spectrum, and X-ra...

Laser micro-Raman spectroscopy is an ideal tool for assessment and characterization of various types of carbon-based materials. Due to its special optical properties (CrN) coated stainless steel substrates. NCD films have been investigated by laser micro-Raman spectroscopy. The fingerprint of diamond based materials is in the spectral region of 1000-1600 cm-1 in the first order of Raman scatter...

The Pixel Luminosity Telescope (PLT) system is an innovative luminosity monitor being developed as an early upgrade for the CMS detector at the LHC. An essential feature of the PLT is the use of single crystal diamond, grown by chemical vapor deposition, as the active sensor material. The radiation hardness of diamond, along with its lack of need for active cooling, are key to the design and fu...

Metal matrix-impregnated diamond composites are widely used in diamond tool manufacturing. In order to satisfy the increasing engineering requirements, researchers have paid more and more attention to enhancing conventional metal matrices by applying novel methods. In this work, ZrO₂ nanoparticles were introduced into the WC-bronze matrix with and without diamond grits via hot pressing to impro...

OBJECTIVES The diamond model considers two dimensions of criteria, i.e., the magnitudes of rates and the trends in rates, in order to prioritize different health issues for health policy decision-making. We aimed in this study to use the diamond model to prioritize 30 causes of death (COD) by considering both the level of and inequality in mortality for the setting of policy goals in Taiwan. ...

Diamond like carbon (DLC) film was grown by hot filament chemical vapor deposition (HFCVD)technique. In the present work, we investigated the quality of the DLC films groew on the substratesthat were coated with various metal nanocatalysts (Au and Ni). A combination of CH4/Ar/H2 rendersthe growth of carbon nanostructures technique (diamond like carbon). The utilized samples werecharacterized by...

Ando, et a!., Direct interaction of elemental fluorine with diamond surfaces, Diamond and Related Materials 1996; 5: 1021-1025.* Kealey, et a!., Fluorination of polycrystalline diamond films and powders. An investigation using FTIR spectroscopy, SEM, energyfiltered TEM, XPS and fluorine-IS radiotracer methods, J. Mater. Chern. 2001; 11: 879-886.* Liu, et a!., Functionalization of Nanoscale Diam...

Diamond coatings were successfully deposited on tool steel substrates without using any external diffusion barrier layers. The diamond film deposition was performed in a hot filament chemical vapour deposition (HFCVD) reactor. In the first step, a high substrate temperature and a high methane percentage were used to achieve a faster critical carbon concentration and hence a shorter incubation t...

Zhao, S. 2016. Theoretical Studies of Diamond for Electronic Applications. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1370. 63 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-9565-7. Diamond has since many years been applied in electronic fields due to its extraordinary properties. Substitutional dopants and surface functiona...