Results 11 to 20 of about 3,258 (214)
Effect of milling time on the particle size distribution and morphology of tungsten powders
Fenmo yejin jishu, 2021 The tungsten particles in the different particle size distribution were obtained by changing the ball milling time to increase the volume fraction of tungsten particles in the objective particle size distribution of 5~11 μm, and the influence of ball ...
YANG Wen-tao +4 more
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Preparation of Mg2Ni Hydrogen Storage Alloy Materials by High Energy Ball Milling
Advances in Materials Science and Engineering, 2022 In this paper, Mg2Ni hydrogen storage alloy powder was prepared by high-energy ball milling mechanical alloying method, and the influence of stirring shaft rotation speed, ball milling time, and different sizes of ball mills on the formation time, powder
Xusheng Liu +6 more
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Journal of Aceh Physics Society, 2021 Abstrak. Pasir alam merupakan bahan alam yang berada ditepi pantai, sungai, maupun perbukitan. Pasir alam merupakan batuan sedimentasi yang mengandung berbagai unsur partikel magnetik dan partikel non-magnetik.
Salomo Sinuraya +3 more
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An Experimental Study on Milling Titanium Alloy with a Revolving Cycloid Milling Cutter
Applied Sciences, 2020 In this paper, a revolving cycloid milling cutter was designed with a larger effective cutting helix angle and rake angle than a ball end milling cutter of the same diameter.
Guangyue Wang +3 more
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Preparation and Tribology Performance of Ni-Al-Ag Self-Lubricating Composite Coatings on Aluminum Alloy [PDF]
Cailiao Baohu, 2023 In order to investigate the existence form of solid lubricant Ag in mechanical ball milling preparation of composite coating and the wide temperature range tribological properties of composite coating，a method of indirectly adding solid lubricant Ag was ...
YAN Chengqi, JIA Zhuying, LI Zhanjun
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Ball‐Milling‐Enabled Reactivity of Manganese Metal** [PDF]
Angewandte Chemie, 2021 AbstractEfforts to generate organomanganese reagents under ball‐milling conditions have led to the serendipitous discovery that manganese metal can mediate the reductive dimerization of arylidene malonates. The newly uncovered process has been optimized and its mechanism explored using CV measurements, radical trapping experiments, EPR spectroscopy ...
William I. Nicholson +8 more
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Microstructure Evolution of Ni-Based ODS Superalloy Powders During Horizontal Rotary Ball Milling
Archives of Metallurgy and Materials, 2017 Microstructure evolution of Ni-based oxide dispersion-strengthened alloy powders with milling time is investigated. The elemental powders having a nominal composition of Ni-15Cr-4.5Al-4W-2.5Ti-2Mo-2Ta-0.15Zr-1.1Y2O3 in wt % were ball-milled by using ...
Lee H.-E. +3 more
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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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A Ball Milling Enabled Cross-Electrophile Coupling [PDF]
Organic Letters, 2021 The nickel-catalyzed cross-electrophile coupling of aryl (pseudo)halides and alkyl (pseudo)halides enabled by ball-milling is herein described. Under a mechanochemical manifold, the reductive C–C bond formation was achieved in the absence of bulk solvent and air/moisture sensitive set-ups, in reaction times of 2 hours. The mechanical action provided by
Andrew C. Jones +3 more
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Effect of ball-milling on the thermal properties of MgH2/AlCrNiZrVNb materials for hydrogen storage [PDF]
MATEC Web of ConferencesThe preliminary study examined how ball milling influenced the thermal behavior of MgH₂/AlCrNiZrVNb materials to improve their energy storage potential.
Ntanzi Lindokuhle +3 more
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