Results 161 to 170 of about 25,297 (201)

Experimental investigations and modelling of the ball motion in planetary ball mills

Powder Technology, 2011
Abstract Planetary ball mills feature attractive properties, like the possibility of dry or wet operation, straightforward handling, cleanability and moderate costs. Consequently they are very well suited for lab scale process development in diverse industries, including pharmaceuticals and new materials. A number of questions still remain unanswered
S. Rosenkranz, S. Breitung-Faes, A. Kwade   +2 more
openaire   +3 more sources

Influence of ball size distribution on grinding effect in horizontal planetary ball mill

Advanced Powder Technology, 2014
Abstract The law of ball size distribution in the horizontal planetary ball mill is studied by the discrete element method. The results show that the maximum impact energy could be acquired when filling rate is 24%, moreover the biggest mean contact force and the highest energy utilization ratio of balls could be acquired when the speed ratio is 1.5.
Jiaguan Zhang, Yang Bai, Hai Dong, Qiong Wu, Xuchu Ye   +4 more
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Mechanistic modeling and simulation of a wet planetary ball mill

Powder Technology, 2023
Victor A. Rodriguez, Luciane Ribas, Arno Kwade, Luís Marcelo Tavares   +3 more
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Planetary ball milling of MWCNTs reinforced NiAl composites

Materials Today: Proceedings, 2020
Abstract Multi-walled carbon nanotubes (MWCNTs) are remarkable reinforcing material with magnificent mechanical features. The presences of sp2 C-C networks in their shells have been responsible for their wide-ranging mechanical abilities. MWCNT are generally known to agglomerate because of the existence of Van der Waals forces, which results in ...
Olusoji O. Ayodele, Adewale O. Adegbenjo, Mary A. Awotunde, Samuel O. Akinwamide, Mxolisi B. Shongwe, Peter A. Olubambi   +5 more
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Temperature of the milling balls in shaker and planetary mills

Journal of Materials Science, 2006
The temperature increase of the milling balls in two laboratory mills, frequently used for mechanical alloying and mechanochemical experiments, was studied using direct calorimetric measurements. The ball temper- ature remains below 100 C in a SPEX 8000 shaker mill and it is cooler when flat-ended rather than round-ended vial is used, although the ...
L. Takacs, J. S. McHenry
openaire   +1 more source

Synthesis of Nanofertilizers by Planetary Ball Milling

2020
Plant nutrients supplied to crops as fertilizers are essential for plant growth, metabolism and production. Inappropriate application of plant nutrients induces 40–70% loss of nutrients and causes contamination of land and water systems. Nano-fertilizers provide nutrients precisely to the plant’s requirement, and thus reduces the environmental loss of ...
Chwadaka Pohshna, Damodhara Rao Mailapalli, Tapas Laha   +2 more
openaire   +1 more source

ChemInform Abstract: Process Engineering with Planetary Ball Mills

ChemInform, 2013
AbstractReview: 66 refs.
Christine Friedericke Burmeister, Arno Kwade   +1 more
openaire   +1 more source

High Energy Planetary Ball Milling of SiC Powders

Key Engineering Materials, 2007
The effects of high-energy ball milling on SiC powders were studied using a planetary apparatus. Conditions to obtain nanostructured SiC powders with an average crystallite size of 4 nm were determined and powders were characterized by XRD, SEM and TEM analyses. This process was applied to prepare fine powders leading to dense SiC ceramics by sintering
Yu Bai Pan, Zheng Ren Huang, Dong Liang Jiang, Léo Mazerolles, D. Michel, J.L. Pastol, Guillaume Wang   +6 more
openaire   +1 more source

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
openaire   +1 more source

Planetary ball-milling: an experimental parameter phase diagram

Materials Science and Engineering: A, 1991
Abstract In this paper, we report experimental investigations of the planetary ball-milling process parameters which determine the stationary dynamic end-product structure, i.e. the energy and frequency of the shocks as well as the mean temperature of the vials.
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