Results 261 to 270 of about 25,595 (290)

Dry grinding of chitosan powder by a planetary ball mill

Advanced Powder Technology, 1998
Dry grinding of chitosan powder was carried out using a planetary ball mill for its applications to drug carriers. Eighty grams of zirconium oxide balls of 1-5 mm diameter and 1-4 g of 100% deacetylated chitosan were loaded into a 45 ml agate pot and then ground at 440-723 r.p.m.
Yoshinobu Fukumori, Iroshi Tamura, Kaori Jono, Masahito Miyamoto, Hiroyuki Tokumitsu, Hideki Ichikawa, Lawrence H. Block   +6 more
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Ball temperatures during mechanical alloying in planetary mills

Journal of Alloys and Compounds, 2002
Abstract A simple calorimetric technique was used to estimate the temperature of balls during mechanical alloying (MA) in an AGO-2 planetary ball mill. Temperatures up to 600 °C were realized for balls in the case that compact layers of milled powder are formed on the surface of the balls and the wall of the vial.
Young-Soon Kwon, Konstantin B Gerasimov, Sok-Keel Yoon   +2 more
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Investigation of planetary ball milling of sericite for potash recovery

Powder Technology, 2019
Abstract Sericite sample having potash (K2O) content ~9% is evaluated as a source of potash. The mineralogical studies revealed the fine grain structure of sericite containing muscovite, orthoclase and phlogopite as the major potash bearing phases.
Yogendra Pratap Singh, Himanshu Tanvar, Gulshan Kumar, Nikhil Dhawan   +3 more
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Ultrafine Powder Production in a Planetary Ball Mill

Particulate Science and Technology, 1997
ABSTRACT 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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A study on talc ground by tumbling and planetary ball mills

Powder Technology, 1994
Abstract The size reduction and structural changes of talc induced by dry grinding with tumbling and planetary ball mills were investigated by means of particle size analysis, SEM observation, X-ray diffraction and TG-DTA. Size reduction of talc samples was observed to predominate in grinding using a moderate energy type tumbling ball mill.
James M. Filio, Kazumasa Sugiyama, Fumio Saito, Yoshio Waseda   +3 more
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In‐Situ Production of Modified Starch and Pickering Emulsions by Planetary Ball Milling

Starch - Stärke, 2023
AbstractRice starches with different degrees of modification are obtained by high impact‐milling and evaluated as stabilizers of oil/water (O/W) Pickering emulsions. The objective is to produce in‐situ Pickering emulsions in a planetary ball mill (PBM), analyzing the effect of starch milling time (10, 40, 70 min) and starch concentration (3%, 9%, 15 ...
Luciana C. González, Patricio R. Santagapita, Marcela P. Tolaba   +2 more
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Production of nanocrystalline lithium fluoride by planetary ball-milling

Powder Technology, 2014
Abstract 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., Pohl, A., Knapp, M., Hahn, H., Fichtner, M.   +4 more
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ChemInform Abstract: Process Engineering with Planetary Ball Mills

ChemInform, 2013
AbstractReview: 66 refs.
Christine Friedericke Burmeister, Arno Kwade   +1 more
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Dolomite grinding behavior in laboratory planetary ball mill

Industrial ceramics, 2007
Population 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, Žižek, Krunoslav, Hraste, Marin   +2 more
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Dolomite wet comminution in planetary ball mill

2007
Proces 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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