Material properties in fine grinding
Peukert W (2002)
Publication Language: English
Publication Type: Conference contribution
Publication year: 2002
Publisher: Elsevier
City/Town: Amsterdam
Pages Range: -
Conference Proceedings Title: European Congress on Comminution
Event location: Heidelberg
Abstract
The impact of material properties in grinding processes is twofold:
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the objective of the comminution process is the production of well-defined product properties,
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particles' transport to the stressing zone and particles' reaction to applied stresses depend on their inherent mechanical material properties.
In order to understand the influence of material properties at various length scales, we draw a multiscale picture of comminution. At the most detailed level MD simulations may open insights into the otherwise not accessible zone directly at the crack tip. In continuum approaches, the energy flux from the elastically stressed specimen and the stress distribution around the crack can be modelled. Breakage probability obtained from particle stressing experiments or inversion of milling models can be described by a single master curve comprising two new material parameters. These results are used in mill models by clearly separating machine and material functions. In wet grinding, additional material parameters reflecting the particle–particle interactions are introduced, which control suspension rheology and particle stability. The paper concludes with some remarks on product engineering, i.e. concepts on how to optimise product quality.
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How to cite
APA:
Peukert, W. (2002). Material properties in fine grinding. In European Congress on Comminution (pp. -). Heidelberg, DE: Amsterdam: Elsevier.
MLA:
Peukert, Wolfgang. "Material properties in fine grinding." Proceedings of the European Congress on Comminution, Heidelberg Amsterdam: Elsevier, 2002. -.
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