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Investigation of structure formation during freeze-casting from very slow to very fast solidification velocities

: Waschkies, Thomas; Oberacker, R.; Hoffmann, M.J.

Preprint urn:nbn:de:0011-n-1782678 (161 KByte PDF)
MD5 Fingerprint: 71570b1d9a462bfa3fc9cb3f9a26a366
Created on: 5.5.2012

Acta Materialia 59 (2011), No.13, pp.5135-5145
ISSN: 1359-6454
Journal Article, Electronic Publication
Fraunhofer IZFP ()
freeze casting; microstructural development; solidification

Ice-templated structure formation of water-based suspensions was investigated from very slow (<1 µm s-1) to very fast (>100 µm s-1) solidification velocities by analysing the microstructural development in the frozen state and the green state. Maps for the microstructural development were established, showing transitions from planar to lamellar and lamellar to isotropic microstructure with dependence on particle size, solids content and solidification velocity.