Results 31 to 40 of about 35,853 (216)
A Ball‐Milling‐Enabled Reformatsky Reaction
ChemSusChem, 2019 AbstractAn operationally simple one‐jar one‐step mechanochemical Reformatsky reaction using in situ generated organozinc intermediates under neat grinding conditions has been developed. Notable features of this reaction protocol are that it requires no solvent, no inert gases, and no pre‐activation of the bulk zinc source.
Qun Cao +3 more
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Analysis of discrete time schemes for milling forces control under fractional order holds [PDF]
, 2013 In this paper, discrete time model reference control schemes for practical milling using different discretization of the continuous-time plant are presented. First, a basic controller scheme is addressed where a fractional order hold with pre-fixed value
De la Sen, Manuel +11 more
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Study and Application of a Wet Ball Milling Ultra-fine Method for Geological Samples
Yankuang ceshi, 2023 BACKGROUNDAt present, there are large particles in geological samples prepared in the laboratory, which affect the representativeness of the samples and the accuracy of the analysis results[1-3].
Xuelin DONG +5 more
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Effect of ball milling process on microstructure and mechanical properties of CNTs/Al composites
Fenmo yejin jishuCarbon nanotubes (CNTs) and aluminum composite powders were prepared by both wet ball milling and dry ball milling. The CNTs reinforced aluminum matrix (CNTs/Al) composites were fabricated by sparking plasma sintering (SPS) combined with hot extrusion ...
YOU Yuanqi +5 more
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Delamination of kaolinite - potassium acetate intercalates by ball-milling [PDF]
, 2010 Structural changes in intercalated kaolinite after wet ball-milling were examined by scanning electron microscopy (SEM), X-ray diffraction (XRD), specific surface area (SSA) and Fourier Transform Infrared spectroscopy (FTIR).
Cheng, Hongfei +4 more
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Shipin yu jixieObjectiveTo investigate the effect of ball milling treatment on the structure, physicochemical properties, and digestibility of high-amylose corn starch (HACS).MethodsIn this paper, the effect of different ball milling durations on the particle size ...
YU Zhenyu +4 more
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Hyperchaotic qualities of the ball motion in a ball milling device
Chaos: An Interdisciplinary Journal of Nonlinear Science, 1999 Ball collisions in milling devices are governed by complex dynamics ruled by impredictable impulsive forces. In this paper, nonlinear dynamics techniques are employed to analyze the time series describing the trajectory of a milling ball in an empty container obtained from a numerical model.
C. CARAVATI +3 more
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Effect of ball milling process on mechanical properties of medical Ti–Mg composites
Fenmo yejin jishuTi–15Mg composites were prepared by ball milling, cold pressing, and microwave heating sintering. The effects of ball milling parameters on the properties of the Ti–15Mg mixed powders and the mechanical properties of the sintered composites were studied.
XIA Pengzhao +4 more
doaj +1 more source
Archives of Metallurgy and Materials, 2015 In this research, effect of the various mechanical milling process on morphology and microstructural changes of nano and micron Al-powders was studied. The milling of Al-powders was performed by both high energy and low energy ball milling process.
Kim H.-S. +6 more
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Applied Sciences, 2020 In this work, we synthesized new materials based on Fe(II) phthalocyanine (FePc), urea and carbon black pearls (BP), called Fe-N-C, as electrocatalysts for the oxygen reduction reaction (ORR) in neutral solution.
Maida Aysla Costa de Oliveira +4 more
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