TY  - JOUR
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
VL  - 323
AV  - public
SP  - 1
Y1  - 2018/01/01/
EP  - 7
TI  - A comparison between interparticle forces estimated with direct powder shear testing and with sound assisted fluidization
A1  - Chirone, R
A1  - Raganati, F
A1  - Ammendola, P
A1  - Barletta, D
A1  - Lettieri, P
A1  - Poletto, M
KW  - Sound assisted fluidization
KW  -  Fine and ultrafine cohesive powders
KW  -  Interparticle forces
KW  -  Cluster/subcluster model
JF  - Powder Technology
UR  - http://dx.doi.org/10.1016/j.powtec.2017.09.038
SN  - 0032-5910
N2  - Understanding the role of the interparticle forces in fluidization of cohesive powders is crucial for a proper application of fluidization to these type of powders. However, a direct measure of the interparticle interactions (IPFs) is challenging, mainly because cohesive particles cannot be fluidized under ordinary conditions. That is the reason why IPFs are typically measured using a rheological approach. The aim of this study is, therefore, to evaluate the IPFs of cohesive powders under actual fluidization conditions, by using an experimental and theoretical approach. In particular, a sound assisted fluidized bed apparatus was used to achieve a fluidization regime of the particles. Then, the cluster/subcluster model was applied to calculate IPFs, starting from the experimental data. The obtained IPFs were then compared to those evaluated by using a shear testing approach.
ID  - discovery10022672
ER  -