Activation volumes in CoPtCr-SiO2 perpendicular recording media [PDF]
CoPtCr-SiO2 perpendicular recording media with varying levels of SiO2 were examined by two different methods to determine the activation volume. The first is based on the sweep-rate dependence of the remanence coercivity using Sharrock's equation.
Dutson, J D +4 more
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Photoconverter with luminescent concentrator. Matrix material
Materials, promising for production of luminescent solar energy concentrators were considered. It is known that the silicon oxide matrix is transparent within the spectral range where Sun emits light.
M.R. Kulish
doaj +1 more source
Glass in the submarine section of the HSDP2 drill core, Hilo, Hawaii [PDF]
The Hawaii Scientific Drilling Project recovered ~3 km of basalt by coring into the flank of Mauna Kea volcano at Hilo, Hawaii. Rocks recovered from deeper than ~1 km were deposited below sea level and contain considerable fresh glass. We report electron
Baker, Michael +4 more
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Fabrication SiO2 -NiO foam via replication technique for steam methane reforming catalyst at low temperatures [PDF]
Porous ceramic is a type of material that has highly open and partially interconnected pores. It has a wide range of applications, which include catalyst support, filtration, adsorption and separation.The aim of this study is to fabricate Silica-Nickel
Muda, Rizamarhaiza
core
In this paper, the influence of scattering enhancement particles CaCO3, CaF2, SiO2 and TiO2, adding to YAG:Ce phosphor compounding, on color uniformity of white LEDs (W-LEDs) was presented.
Nguyen Huu Khanh Nhan +2 more
doaj +1 more source
Hydrophilicity of Silica Nano-Porous Thin Films: Calcination Temperature Effects [PDF]
In this research work, silica nano-porous thin films were deposited on glass substrates by layer by layer method. The thin films were calcinated at various calcination temperatures (200, 300, 400, and 500 °C).
Akbar Eshaghi, Mohammadreza Mojab
doaj +1 more source
Microstructural properties of non-supported microporous ceramic membrane top-layers obtained by the sol-gel process [PDF]
Dried and calcined non-supported membrane top-layers of SiO2, SiO2/TiO2, SiO2/ZrO2 (10, 20 and 30 mol% TiO2 and ZrO2, respectively) and SiO2/Al2O3 (10 mol% AlO1.5) were prepared using acid catalyzed hydrolysis and condensation of alkoxides in ethanol ...
Burggraaf, A.J. +3 more
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Overview of the sensitivity of Ge- and Al-doped silicon dioxide optical fibres to ionizing radiation [PDF]
This paper reviews the thermoluminescence sensitivity of Ge- and Al- doped SiO2 optical fibre subjected to various ionizing radiations. It is found that the Ge- doped SiO2 optical fiber has the thermoluminescence response superior to Al-doped SiO2 ...
Hashim, Suhairul +3 more
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Defects in SiO2 as the possible origin of near interface traps in the SiC∕SiO2 system: A systematic theoretical study [PDF]
A systematic study of the level positions of intrinsic and carbon defects in SiO2 is presented, based on density functional calculations with a hybrid functional in an alpha-quartz supercell.
A. Gali +18 more
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Surface modification of an Al2O3/SiO2 based ceramic treated with CO2, Nd:YAG, excimer and high power diode lasers for altered wettability characteristics [PDF]
Interaction of CO2, Nd:YAG, excimer and high power diode laser (HPDL) radiation with the surface of an Al2O3/SiO2 based ceramic was found to affect significant changes in the wettability characteristics of the material.
Lawrence, Jonathan +2 more
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