Galvanically Stimulated Degradation of Carbon-Fiber Reinforced Polymer Composites: A Critical Review
authors Ofoegbu, SU; Ferreira, MGS; Zheludkevich, ML
nationality International
journal MATERIALS
author keywords carbon fiber; polymer matrix; metals; multi-material; interface; cathodic; galvanic coupling; high pH; degradation
keywords CHARGE-SELECTIVE ELECTROCHEMISTRY; ELECTRON-TRANSFER KINETICS; MATRIX INTERFACIAL BOND; OF-THE-ART; MECHANICAL-PROPERTIES; OXYGEN REDUCTION; CYANATE ESTER; SURFACE-CHEMISTRY; TRIBOLOGICAL PROPERTIES; EPOXY MATRIX
abstract Carbon is used as a reinforcing phase in carbon-fiber reinforced polymer composites employed in aeronautical and other technological applications. Under polarization in aqueous media, which can occur on galvanic coupling of carbon-fiber reinforced polymers (CFRP) with metals in multi-material structures, degradation of the composite occurs. These degradative processes are intimately linked with the electrically conductive nature and surface chemistry of carbon. This review highlights the potential corrosion challenges in multi-material combinations containing carbon-fiber reinforced polymers, the surface chemistry of carbon, its plausible effects on the electrochemical activity of carbon, and consequently the degradation processes on carbon-fiber reinforced polymers. The implications of the emerging use of conductive nano-fillers (carbon nanotubes and carbon nanofibers) in the modification of CFRPs on galvanically stimulated degradation of CFRP is accentuated. The problem of galvanic coupling of CFRP with selected metals is set into perspective, and insights on potential methods for mitigation and monitoring the degradative processes in these composites are highlighted.
publisher MDPI
issn 1996-1944
year published 2019
volume 12
issue 4
digital object identifier (doi) 10.3390/ma12040651
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000460793300101
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journal analysis (jcr 2019):
journal impact factor 3.057
5 year journal impact factor 3.424
category normalized journal impact factor percentile 58.121
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