Results 11 to 20 of about 122,967 (308)

Preparation of Mg2Ni Hydrogen Storage Alloy Materials by High Energy Ball Milling

open access: yesAdvances 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
doaj   +1 more source

Enhanced leaching of manganese from low-grade pyrolusite using ball milling and electric field

open access: yesEcotoxicology and Environmental Safety, 2021
In this study, electric field and ball milling were used to leach Mn2+ from low-grade pyrolusite (LGP). The effects of current density, reaction time, reaction temperature, ball-to-powder weight ratio, and ball milling time on the leaching efficiency of ...
Zhenggang Luo   +12 more
doaj   +1 more source

Hydrogen Motion in Magnesium Hydride by NMR [PDF]

open access: yes, 2008
In coarse-grained MgH2, the diffusive motion of hydrogen remains too slow (
Bormann, Rüdiger   +11 more
core   +1 more source

Influence of mechanical milling conditions on the dispersity of lithium ferrite [PDF]

open access: yes, 2015
The effect of mechanical milling in a planetary ball mills on dispersity of the synthesized lithium ferrite powder was investigated by laser diffraction technique.
Lamonova, Svetlana Andreevna   +2 more
core   +1 more source

Analysis of the size and composition of natural sand particles in the Rokan River Riau Province as a function of ball milling time

open access: yesJournal 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
doaj   +1 more source

Impact of ball milling on maize (Zea mays L.) stem structural components and on enzymatic hydrolysis of carbohydrates [PDF]

open access: yes, 2014
The impact of ball milling on structural components of maize (Zea mays L.) stem was investigated in relation to enzymatic hydrolysis of carbohydrates. Ball milling of extractive-free maize stem material was carried out with different milling times up to ...
Baumberger, Stéphanie   +2 more
core   +3 more sources

Preparation and Tribology Performance of Ni-Al-Ag Self-Lubricating Composite Coatings on Aluminum Alloy [PDF]

open access: yesCailiao 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
doaj   +1 more source

Ball‐Milling‐Enabled Reactivity of Manganese Metal** [PDF]

open access: yesAngewandte 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
openaire   +6 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

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