Syntactic perlite-aluminium long-term loss of mechanical properties immersed in ocean and fresh waters

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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