Results 1 to 10 of about 58,135 (312)
Fenmo yejin jishu, 2021 The SiC particle (SiCp) reinforced magnesium matrix composite powders (AZ91‒xSiCp, x=5%, 10%, 15%, volume fraction) were synthesized by mechanical milling. After the mechanical milling, the grain size of the magnesium matrix was refined to nanoscale, and
ZHANG Su-qing +6 more
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Preparation of Nickel Powders by Reduction of Nickel Hydroxide Usingthe Taylor Fluid Flow [PDF]
Archives of Metallurgy and Materials, 2018 A nanocrystalline Ti alloy powder was fabricated using cryomilling. The grain size and lattice strain evolution during cryomilling were quantitatively analyzed using X-ray diffraction (XRD) based on the Scherrer equation, Williamson-Hall (W-H) plotting ...
I.-J. Park +4 more
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Spark plasma extrusion of binder free hydroxyapatite powder
Nanotechnology Reviews, 2022 This work explores the possibility of manufacturing dense and nanocrystalline hydroxyapatite (HA) large monoliths by spark plasma extrusion (SPE). This method combines uniaxial mechanical compression, high temperature, and electromagnetic field to ...
Díaz-de-la-Torre Sebastián +8 more
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Investigation of the catalytic performance and coke formation of nanocrystalline Ni/SrO-Al2O3 catalyst in dry reforming of methane [PDF]
Hydrogen, Fuel Cell & Energy Storage, 2017 In this study, nickel catalysts supported on mesoporous nanocrystalline gamma alumina promoted by various strontium contents were prepared by the impregnation method and employed in dry reforming of methane (DRM).
Elaheh Amir +2 more
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Optimization of Preparation Factors for Cerium Oxide Synthesis as a Support for CO PrOx Catalyst [PDF]
Hydrogen, Fuel Cell & Energy Storage, 2014 Nanocrystalline ceria has been considered as support for carbon monoxide preferentially oxidation. In this study ceria was prepared by precipitation method and the effects of preparation conditions, such as pH of solution (8-10), aging time (1-12 hr ...
Najmeh Hoshyar, Abdullah Irankhah
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Toughness and strength of nanocrystalline graphene [PDF]
Nature Communications, 2016 AbstractPristine monocrystalline graphene is claimed to be the strongest material known with remarkable mechanical and electrical properties. However, graphene made with scalable fabrication techniques is polycrystalline and contains inherent nanoscale line and point defects—grain boundaries and grain-boundary triple junctions—that lead to significant ...
Shekhawat, Ashivni, Ritchie, Robert O
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Bulletin of Chemical Reaction Engineering & Catalysis, 2009 Hidrida logam berbasis MgH2 dengan sisipan 1 wt% katalis Fe telah berhasil disintesis dengan teknik ball milling. Hasil proses miling selama 80 jam menunjukkan bahwa ukuran butir material telah membentuk struktur nanokristal.
Mustanir Mustanir, Zulkarnain Jalil
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Luminescence of nanocrystalline ZnS:Cu2+ [PDF]
Journal of Luminescence, 2002 Abstract Temperature dependent luminescence and luminescence lifetime measurements are reported for nanocrystalline ZnS:Cu 2+ particles. Based on the variation of the emission wavelength as a function of particle size (between 3.1 and 7.4 nm) and the low quenching temperature ( T q =135 K), the green emission band is assigned to recombination of an
Bol, A.A. +3 more
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Energies, 2020 The power transformer is a key object in the electrical power system. The working principle hasn’t changed since its discovery. The main work nowadays is focused on the rising of the reliability of transformers and lowering power losses.
Maciej Kuniewski
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Nanomaterials, 2018 Exploring structural effects that influence both the mechanics and magnetism in nanocrystalline materials, particularly extremely-fine nanograined ones with grain sizes down to several nanometers, is of high interest for developing multifunctional ...
Qiongyao He +5 more
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