STAGE 2 : CHARACTERIZING THE POROUS STRUCTURE, THE MECHANICAL PROPERTIES AND THE ENERGY ABSORPTION CHARACTERISTICS OF THE METAL/CERAMIC COMPOSITE FOAMS.

The cellular structure of the Aluminum/Ceramic composite Foams requires that special precautions must be taken in characterization and testing. The porous structure, the pore size and the pore size distribution will be examined by optical microscopy, scanning electron microscopy and X-ray tomography. The Young’s moduli and the strength of the Foams will be examined by compressive tests. The energy absorption capability will be evaluated by integrating the area under the stress-strain curves of the compression test.

Optical microscopy and scanning electron microscopy (SEM) will be used in characterizing the Aluminum/Ceramic composite Foams. The density of the Foams will be measured by weighing a Foam sample of known volume. These structurally characterizations will be performed at Deakin. X-ray Computed Tomography (CT) gives low magnification images of planes within a Foam which can be assembled into a three-dimensional image. The method allows examination of the interior of a closed-cell Foam, and can be used to study the cell distortion progress through successive imaging as the sample in deformed.

This part of characterization will be performed in AIST, Japan, in which the CI has previously worked for 8 years as a researcher, and has collaborator there now. Testing of mechanical properties and energy absorption capability will be carried out at Deakin because we have the best compressive tester such as MTS 810 servo-hydraulic testing system (350 kN capacity) and MTS 20/G electromechanical testing system (100 kN capacity).