Linking compaction dynamics to the flow properties of powders

G. Lumay, N. Vandewalle, C. Bodson, L. Delattre and O. Gerasimov
Linking compaction dynamics to the flow properties of powders
Applied Physics Letters 89, 093505 (2006)
DOI: https://doi.org/10.1063/1.2338801

 

Linking compaction dynamics to the flow properties of powders

 

The authors have investigated the flow properties of powders by using two classical techniques
based on the shear stress measurements and the count of intermittent avalanches, respectively.

Results are compared with measurements of the compaction dynamics.

Strong correlations are evidenced between compaction relaxation parameters and free flow characteristics.

Those correlations are given by semiempirical laws based on physical arguments.
This work opens perspectives in powder technology and the knowledge on granular matter.