ZnO nanoparticles were synthesized by esterification reaction between zinc acetate and absolute ethanol under solvothermal conditions. The influences of reaction parameters and different surfactants on the size and mo...
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Now LiCoO2 is the most widely used electrode material in commercial rechargeable lithium-based batteries; however, the toxicity of cobalt and the scarcity of cobalt sources, as well as the limited charge/discharge cap...
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Now LiCoO2 is the most widely used electrode material in commercial rechargeable lithium-based batteries; however, the toxicity of cobalt and the scarcity of cobalt sources, as well as the limited charge/discharge capacity（130-140 mA.h.g-1） of LiCoO2 electrode drive many efforts to develop various alternative electrode materials, including diverse transition metal oxides and their lithiated counterparts. Amongst them, iron oxides,
A series of sorbents for SO2 in flue gas were prepared from hydrated lime and blast furnace slag using a factorial experiment design. It is found that the reaction between hydrated lime and blast furnace slag is fast....
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A series of sorbents for SO2 in flue gas were prepared from hydrated lime and blast furnace slag using a factorial experiment design. It is found that the reaction between hydrated lime and blast furnace slag is fast. The reactivities of the as-prepared sorbents are higher than those of hydrated lime alone due to the formation of calcium silicate hydrates, and hence the utilization of hydrated lime as well as the Ca in the blast furnace slag is improved. Furthermore, the effects of preparation variables on the reactivity of the sorbents are also discussed.
High quality magnesium alloy sheets with non-dendritic microstructure can be manufactured by the technique which incorporates semi-solid processing with continuous roll strip-casting. In particular, the process is bel...
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ISBN:
(纸本)9771012039401
High quality magnesium alloy sheets with non-dendritic microstructure can be manufactured by the technique which incorporates semi-solid processing with continuous roll strip-casting. In particular, the process is believed to be cost-effective in mass production of magnesium sheet products. The processing parameters, such as roll speed and temperature, have significant influence on roll strip-casting process. In this paper, the commercial software, DEFORM-3D, for deformation simulation of bulk materials was used to carry out the simulation of roll strip-casting process for AZ91D magnesium alloy in semi-solid state, and the distribution of equivalent stress, equivalent strain and temperature was obtained. Based on the results, the optimization of processing parameters was discussed.
作者：
Ge YangHongzhang ChenYan LiuCollege of Life Science
Qufu Normal University Qufu Shandong 273165 State Key Lab.of Biochemical Engineering Institute of Process Engineering China Chinese Academy of Sciences Beijing 100080 China
Low agglomerating spherical α-Fe2O3 nanopowders were synthesized by catalytic phase transformation in hydrothermal reaction and then dried through freeze-drying. It was found that the as-synthesized particles were sp...
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Low agglomerating spherical α-Fe2O3 nanopowders were synthesized by catalytic phase transformation in hydrothermal reaction and then dried through freeze-drying. It was found that the as-synthesized particles were spherical and the particle size results obtained from the different measurement methods, including BET, XRD, TEM, SEM and laser particle size analyzer, were almost the same, implying that the α-Fe 2O3 nanopowders were low agglomerating.
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