On the occurrence of osmosis during water uptake by adhesively bonded titanium joints

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Abstract
Measurements are reported of the influence of dissolved inorganic salts upon the swelling behaviour of an adhesive joint. It is found that both the magnitude and rate of swelling associated with water uptake are reduced when epoxy resin anodised titanium/soda-lime glass joints are immersed in saturated solutions of KCl or NaCl. Application of an optical interference method to measure swelling profiles permits determination of the distribution of stress normal to a butt joint. For the case of swelling during immersion in distilled water, the normal stress across a radius varies in magnitude and in sign.

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