- Title
- On the compressive behaviour of high porosity expanded Perlite-Metal Syntactic Foam (P-MSF)
- Creator
- Broxtermann, S.; Taherishargh, M.; Belova, I. V.; Murch, G. E.; Fiedler, T.
- Relation
- Journal of Alloys and Compounds Vol. 691, p. 690-697
- Publisher Link
- http://dx.doi.org/10.1016/j.jallcom.2016.08.284
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2017
- Description
- A high porosity Perlite-Metal Syntactic Foam (P-MSF) is produced by the pre-compaction of a packed bed of expanded perlite particles prior to counter gravity infiltration with molten aluminium. The density of the resulting high porosity (>70 vol%) syntactic foam is in the range of 0.72–0.98 g/cm³, depending on the particle pre-compaction pressure and the number of compaction steps. Compressive testing is carried out following the ISO 13314 standard to characterise the mechanical properties of this novel material. Furthermore, micro-computed tomography scans are performed in order to investigate its meso-structure. The geometrical analysis revealed that the densification procedure generates a porosity gradient in the direction of the compressive force. This gradient is found to affect the deformation mechanism and thus the mechanical properties of high porosity P-MSF.
- Subject
- metal matrix composites; porosity; energy absorption; compressive properties
- Identifier
- http://hdl.handle.net/1959.13/1391750
- Identifier
- uon:33287
- Identifier
- ISSN:0925-8388
- Language
- eng
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