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Characterising moisture ingress in adhesively bonded joints using nuclear reaction analysis

Liljedahl, CDM, Crocombe, AD, Gauntlett, FE, Rihawy, MS and Clough, AS (2009) Characterising moisture ingress in adhesively bonded joints using nuclear reaction analysis INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, 29 (4). 356 - 360. ISSN 0143-7496

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Abstract

The moisture ingress in bonded structures is usually characterised by gravimetric experiments on bulk adhesive samples. This is a relatively economic and convenient method. However, this approach poses a problem as only the total amount of moisture in the specimen can be determined and not the moisture concentration distribution throughout the adhesive layer. In this study, the moisture profile at two different ageing times (43 and 96 h) in a bonded joint has been determined by use of nuclear reaction analysis (NRA). The moisture ingress profile, which was found to be Fickian in the bulk adhesive sample, was dominated by apparent Case II kinetics in the bonded joint specimens. The ingress in the laminates was seen to be much faster than if the moisture transport had been governed by Fickian diffusion.

Item Type: Article
Additional Information: NOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Adhesion and Adhesives. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Adhesion and Adhesives, June 2009, DOI 10.1016/j.ijadhadh.2008.07.005
Uncontrolled Keywords: Science & Technology, Technology, Engineering, Chemical, Materials Science, Multidisciplinary, Engineering, Materials Science, Epoxy/epoxides, Aluminium and alloys, Durability, Case II diffusion, Interfacial diffusion, SORPTION KINETICS, DIFFUSION, DURABILITY, TRANSPORT, MODEL, WATER, INTERFACE, SYSTEMS
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Divisions: Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Depositing User: Symplectic Elements
Date Deposited: 31 Oct 2012 13:36
Last Modified: 23 Sep 2013 18:47
URI: http://epubs.surrey.ac.uk/id/eprint/7373

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