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Non-destructive imaging analysis of unstable foam structures using 3D X-ray computed tomography

 
: Eggert, A.; Supper, M.; Nachtrab, F.; Dombrowski, J.; Rack, A.; Zabler, S.

Laudon, M.:
TechConnect briefs 2015. Vol.1: Advanced materials
New York, NY: Productivity Press, 2015
ISBN: 1-4987-4727-2
ISBN: 978-1-4987-4727-1
pp.559-562
TechConnect World Innovation Conference and Expo <2015, Washington/DC>
English
Conference Paper
Fraunhofer IIS ()

Abstract
For the engineering of foamed products, knowledge about the foam structure as well as about its dynamics and stability are of critical importance. Using X-ray computed tomography (CT) accurate 3D information about the foams structure is obtained, but the structural characterization of liquid foams, which feature structural changes, is still challanging. In this contribution a fast laboratory CT setup is presented allowing the acquisition of 3D data sets almost instantaneously. Reached limits for the CT system: ⢠15s measurement time for a complete 3D recording ⢠3.5 μm resolution for small objects (I.D. 10 mm) ⢠time-resolved structure characterization ⢠constant climate conditions (temperature, humidity) ⢠non-destructiv The suitability and possibilities of such a system for non-solidified foams and other porous materials are shown.

: http://publica.fraunhofer.de/documents/N-418487.html