Results 31 to 40 of about 6,758 (143)
Pack-Boriding of Pure Iron with Powder Mixtures Containing ZrB2
High Temperature Materials and Processes, 2019 Boriding of pure iron was investigated using the powder pack method with boriding powder mixtures containing different weight fractions of ZrB2 (5 %, 10 %, 15 % and 20 %). The samples were borided in an electric resistance furnace for an exposure time of
Calik A. +3 more
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Results in Physics, 2019 The thermal stabilities, electronic structures, magnetic properties and the charge transfers of the rare earth Cerium hexaborides CeB6 under isostatic pressure of 0 GPa and 1 GPa are systematically investigated in detail within the framework of density ...
F.P. Zhang +5 more
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Cobalt boride catalysts for hydrogen generation from alkaline NaBH4 solution
, 2005 Cobalt boride precursors were synthesized via chemical reaction of aqueous sodium borohydride with cobalt chloride, and followed by heat-treating at various temperatures. The as-prepared Co-B catalysts were characterized and analyzed by X-ray diffraction
吴川 +5 more
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A new approach to synthesize nano-yttrium boride particle through metallothermic reduction process [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2020 In the present study, a novel attempt is made to synthesize yttrium boride (YB4) nano-sized powders through metallothermic reduction method. The starting materials used were yttria (Y2O3) and boron oxide (B2O3) as reactants, and calcium (Ca) as reductant.
Sadhasivam M. +5 more
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Direct structure analysis of advanced nanomaterials by high-resolution electron microscopy
Nanotechnology Reviews, 2012 High-resolution electron microscopy (HREM) analysis has contributed to the direct structure analysis of advanced nanostructured materials, of which the properties of these materials are strongly dependent on the atomic arrangements.
Oku Takeo
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Materials & Design, 2023 As one of the important ways to improve surface properties of Ti alloys, the boride layer prepared by the pack boriding is closely related to the growth and morphology of TiB whiskers in the boride layer, whereas the growth and morphology of TiB whiskers
Ancang Yang +6 more
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Effects of Grain Boundary Microconstituents on Heat-Affected Zone Cracks in a Mar-M004 Weldment
Metals, 2018 Repair-welding of a cast Mar-M004 superalloy by gas tungsten arc welding was performed. Liquation cracks of the heat-affected zone (HAZ) in a Mar-M004 weldment were closely related to the presence of low-melting constituents along the solidified ...
Tai-Cheng Chen +3 more
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Pressureless Sintering of Dual-Phase, High-Entropy Boride–carbide Ceramics
, 2023 Dual-Phase, High-Entropy Boride–carbide Ceramics Were Densified by Pressureless Sintering. Relative Densities Up to Approximately 96% Were Obtained for Ceramics Containing About 30 Vol% High-Entropy Boride and 70 Vol% High-Entropy Carbide.
Greg E. Hilmas +7 more
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ChemistryThe use of rhenium-based catalysts (Re2C, Re3B, ReB2, and ReS2) obtained by mechanosynthesis in the pyrolysis of cellulose and lignin from 500 to 800 °C using 10 and 20 wt.% of catalysts is reported. The mechanosynthesis of ReS2 has been reported for the
Mizraim Guillermo Granados-Fitch +3 more
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, 2020 Generating high surface area mesoporous transition metal boride is interesting because the incorporation of boron atoms generates lattice distortions that lead to the formation of amorphous metal boride with unique properties in catalysis. Here we report
Ye, Jinhua +12 more
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