Results 31 to 40 of about 497,744 (196)
Radiation-induced interface phenomena: Decoration of high-energy density ion tracks [PDF]
, 1989 The effect of 20 MeV Cl4 + ions incident on Au-SiO2 and Ag-SiO2 interfaces was investigated using high-resolution transmission electron microscopy. Cross-sectional micrographs expose beam-induced gold interfacial transport and migration into the SiO2. No
Ingemarsson, P. Anders +3 more
core +1 more source
Reactive sputtering deposition of SiO2 thin films [PDF]
Journal of the Serbian Chemical Society, 2008 SiO2 layers were deposited in a UHV chamber by 1 keV Ar+ ion sputtering from a high purity silicon target, using different values of the oxygen partial pressure (5×10-6-2×10-4 mbar) and of the ion beam current on the target (1.67-6.85 mA).
Radović Ivan +3 more
doaj +1 more source
Interaction between graphene and SiO2 surface
, 2011 With first-principles DFT calculations, the interaction between graphene and SiO2 surface has been analyzed by constructing the different configurations based on {\alpha}-quartz and cristobalite structures.
Chihaia, Viorel +4 more
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He jishu, 2023 BackgroundEthylene is an important raw material in petrochemical industry. Semi-hydrogenation of acetylene in an ethylene is an industrially important process.
TAO Xin +8 more
doaj +1 more source
Synthesis and characterization of spherical amorphous alumo-silicate nanoparticles using RF thermal plasma method [PDF]
, 2013 The RF thermal plasma synthesis route was used for the preparation of alumo-silicate spherical particles. Homogeneous solid mixtures of raw materials (Al2O3, SiO2 and KOH) were used as precursors.
Jankeviciutea, Audrone +4 more
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Improved graphene blisters by ultrahigh pressure sealing
, 2020 Graphene is a very attractive material for nanomechanical devices and membrane applications. Graphene blisters based on silicon oxide micro-cavities are a simple but relevant example of nanoactuators.
Cristina Gómez-Navarro +8 more
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Defect-related versus excitonic visible light emission from ion beam synthesized Si nanocrystals in SiO2 [PDF]
, 1996 Two sources of room temperature visible luminescence are identified from SiO2 films containing ion beam synthesized Si nanocrystals. From a comparison of luminescence spectra and photoluminescence decay lifetime measurements between Xe + -implanted SiO2 ...
Atwater, Harry A. +5 more
core +1 more source
Journal of Natural Fibers, 2022 This study addresses the deposition with improved adhesion of TiO2:N/SiO2 mixture, with different concentrations of the nano-powders (NPs) (1:0,5; 1:1 and 1:1,5) on 100% cotton fabrics. The characteristics of the deposited thin films were investigated by
A. O. Mateescu +8 more
doaj +1 more source
Synthesis of core-shell nanoparticles for the removal of toxic pollutants in aqueous medium [PDF]
, 2018 In this work two active photo-catalysts were synthetized and tested for the removal of methylene blue and arsenic in aqueous solutions. The two catalysts (Fe3O4/SiO2/TiO2-Al and Fe3O4-SiO2/Zr-TiO2) were characterized by nano-size, guaranteeing a large ...
Cheng, Khley +4 more
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Comparative study of defect energetics in HfO2 and SiO2
, 2003 We perform ab initio calculations, based on density functional theory, of substitutional and vacancy defects in the monoclinic hafnium oxide (m-HfO2) and alpha-quartz (SiO2).
da Silva, Antonio J. R. +3 more
core +1 more source