Results 21 to 30 of about 872,758 (295)

A Ball Milling Enabled Cross-Electrophile Coupling [PDF]

open access: yesOrganic 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
openaire   +4 more sources

An Experimental Study on Milling Titanium Alloy with a Revolving Cycloid Milling Cutter

open access: yesApplied 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
doaj   +1 more source

Microstructure Evolution of Ni-Based ODS Superalloy Powders During Horizontal Rotary Ball Milling

open access: yesArchives 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
doaj   +1 more source

Study and Application of a Wet Ball Milling Ultra-fine Method for Geological Samples

open access: yesYankuang 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
doaj   +1 more source

Effect of ball-milling on the thermal properties of MgH2/AlCrNiZrVNb materials for hydrogen storage [PDF]

open access: yesMATEC Web of Conferences
The preliminary study examined how ball milling influenced the thermal behavior of MgH₂/AlCrNiZrVNb materials to improve their energy storage potential.
Ntanzi Lindokuhle   +3 more
doaj   +1 more source

A contact-electro-catalysis process for producing reactive oxygen species by ball milling of triboelectric materials

open access: yesNature Communications
Ball milling is a representative mechanochemical strategy that uses the mechanical agitation-induced effects, defects, or extreme conditions to activate substrates. Here, we demonstrate that ball grinding could bring about contact-electro-catalysis (CEC)
Ziming Wang   +6 more
semanticscholar   +1 more source

A Ball‐Milling‐Enabled Reformatsky Reaction

open access: yesChemSusChem, 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
openaire   +3 more sources

Facile Ball-Milling Synthesis of CuO/Biochar Nanocomposites for Efficient Removal of Reactive Red 120

open access: yesACS Omega, 2020
With the goal of improving the removal of anionic contaminants, copper oxide (CuO)-modified biochar (BC) nanocomposites were successfully prepared through simply ball milling CuO particles with BC.
Xiaoqian Wei   +4 more
semanticscholar   +1 more source

Effect of ball milling process on microstructure and mechanical properties of CNTs/Al composites

open access: yesFenmo yejin jishu
Carbon 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
doaj   +1 more source

Effect of freezing ball milling treatment on the structure, physicochemical properties, and digestibility of high-amylose corn starch

open access: yesShipin yu jixie
ObjectiveTo 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
doaj   +1 more source

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