- Title
- Syntactic perlite-aluminium long-term loss of mechanical properties immersed in ocean and fresh waters
- Creator
- Chaves, I.; Fiedler, T.
- Relation
- Corrosion and Prevention 2018. Annual Conference. Annual Conference of the Australasian Corrosion Association: Corrosion & Prevention 2018 Proceedings (Adelaide, SA 11-14 November, 2018)
- Publisher
- Australasian Corrosion Association
- Resource Type
- conference paper
- Date
- 2018
- Description
- Perlite-Metal Syntactic Foam (P-MSF) is a novel lightweight material with good specific strength and excellent energy absorption capabilities. To analyse its suitability in immersed applications, P-MSF has been immersed for 2 years in natural flowing ocean water as well as 1.5 years in fresh tap water. The change of mass and mechanical properties has been studied as a function of exposure time. Results indicate a slow degradation of mechanical properties that can be attributed to a change of the macroscopic deformation mechanism. The change in mechanical properties is triggered by the sedimentation of oxides and sulphates within the expanded perlite particles. Implications towards the long-term viability of such P-MSF in immersed marine and fresh water applications are discussed.
- Subject
- aluminium; syntactic foam; corrosion; compression; ocean waters; fresh waters
- Identifier
- http://hdl.handle.net/1959.13/1405993
- Identifier
- uon:35575
- Identifier
- ISBN:9781510881372
- Language
- eng
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