Breakage behaviour of agglomerates and crystals by static loading and impact

Journal
Powder technology  
Volume
206
Issue
1-2
Start Page
88
End Page
98
Citation
Powder Technology 206 (1-2): 88-98 (2011-01-18)
Publisher DOI
10.1016/j.powtec.2010.02.025
Scopus ID
2-s2.0-78649807504
Publisher
Elsevier
In this contribution the breakage behaviour of needle-shaped particles as L-threonine crystals and cylindrical Al2O3 agglomerates is studied. The breakage of Al2O3 agglomerates is investigated by compression tests. For the L-threonine crystals single particle impacts with a wall are performed. In order to obtain reproducible results an electromagnetic particle gun has been designed. The experimental results are then used to derive a discrete element model to analyze the microdynamics and breakage mechanisms of needle-shaped particles. A good qualitative agreement between simulations and tests is achieved.
Subjects
Agglomerates
Breakage behaviour
Discrete element modelling
L-threonine crystals
DDC Class
500: Science