Results 171 to 180 of about 25,297 (201)
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Simulation of ball motion and energy transfer in a planetary ball mill
Chinese Physics B, 2012A kinetic model is proposed for simulating the trajectory of a single milling ball in a planetary ball mill, and a model is also proposed for simulating the local energy transfer during the ball milling process under no-slip conditions. Based on the kinematics of ball motion, the collision frequency and power are described, and the normal impact forces
Sheng-Yong Lu +4 more
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Production of Foamed Concrete in a Planetary Ball Mill
Key Engineering Materials, 2020Nowadays, the type of foamed concrete performs a group of cemented composite materials that can compete with conventionally used autoclaved aerated concrete. Improving microstructure of the foamed concrete by inventive mixing technology allows to homogenizate the mix of foamed concrete.
Eva Namsone +3 more
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Production of nanocrystalline lithium fluoride by planetary ball-milling
Powder Technology, 2014Abstract Lithium fluoride nanopowders have been prepared by high-energy milling using a planetary ball-mill. The influence of dispersion agents, milling time, ball-size and ball-to-powder ratio on the properties of the material has been investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and N 2 -physisorption ...
Wall, C. +4 more
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Ultrafine Powder Production in a Planetary Ball Mill
Particulate Science and Technology, 1997ABSTRACT Planetary ball mills, by virtue of their design, exert as much as 100 gravitational fields in the milling environment. Hence the kinetics of grinding is rapid, and due to the greater stress, the particle size reaches ultrafine sizes. The grinding of aluminum oxide and silicon carbide in a specially built planetary mill is discussed. The effect
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Modeling energy requirements in planetary ball milling of rice grain
Particulate Science and Technology, 2021Modified rice flours were obtained by high-impact milling. A factorial design was performed in a planetary ball mill varying rotational speed (450–650 rpm) and milling time (10–40 min) while millin...
Loubes, María Ana +2 more
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Suspension rheology during wet comminution in planetary ball mill
Chemical Engineering Research and Design, 2008Obtaining and controlling desirable system behavior in terms of rheology is important issue in many engineering problems. This study monitors rheological behavior of dolomite suspensions produced by wet comminution in planetary ball mill. Dolomite has a number of uses, in agriculture, steelmaking, glass making, ceramic industry, pharmaceutical industry
Glasnović, Antun +2 more
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Techno-functional characterization of chitosan nanoparticles prepared through planetary ball milling
International Journal of Biological Macromolecules, 2020Planetary ball milling of chitosan microparticles (CMP) for 8 h produced chitosan nanoparticles (CNP) having hydrodynamic diameter of 615.18 nm. The ζ-potential decreased from 56.48 mV (CMP) to 31.52 mV (CNP). High resolution transmission electron microscopy (HRTEM) revealed nanosize, irregular shape and surface roughening of CNP.
Touseef Ahmed, Wani +3 more
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Dolomite grinding behavior in laboratory planetary ball mill
Industrial ceramics, 2007Population balances are the most useful tool in solving many engineering problems including comminution process modeling. Studying batch grinding in terms of material balances inevitably demands for determining two basic functions: breakage rate function, also known as selection function and breakage distribution function.
Matijašić, Gordana +2 more
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Synthesis of thermoelectric materials by mechanical alloying in planetary ball mills
Powder Technology, 1999Abstract We report on the influence of the planetary ball mill setting parameters on the evolution of alloy formation on the thermoelectric semiconductor systems, Si–Ge, Mg 2 Si, and Mg 2 (Si,Sn). From a macroscopical viewpoint, it turned out that the geometry of the mill and the ratio of the angular velocities of the planetary and the system wheel ...
Schilz, J. +3 more
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Dolomite wet comminution in planetary ball mill
2007Proces mokrog usitnjavanja često se koristi kako bi se u procesu usitnjavanja spriječilo aglomeriranje materijala. To će rezultirati znatnom uštedom energije i povećanjem učinka procesa. Reološko ponašanje suspenzija dobivenih u procesu mokrog usitnjavanja ovisi o nizu čimbenika: procesnim uvjetima (broj okretaja mlina, broj tijela za usitnjavanje ...
Glasnović, Antun, Matijašić, Gordana
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