Abstract
The interaction of water with porous media is still a controversial topic. Hydration of most materials softens them but numerous exceptions exist. The visco-elastic properties are also affected and two experimental facts are of interest. Firstly, the damping factor increases with the coverage up to a monolayer. Secondly, it presents a maximum beyond this coverage. During drying, this huge peak has been interpreted as a mechanosorptive effect, i.e. stress assisted adsorption. During adsorption, the stress state of H-bonded solids changes, leading to enhanced viscoelastic dissipation. This first paperprovides experimental evidences of the H-bonding in solids, a detaileddiscussion of the mechanisms operative in mechanosorption is postponed to a forthcoming one.
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Lepage, J. On the mechanosorptive effect in porous ceramics Part I Experimental results. Journal of Materials Science 36, 3963–3971 (2001). https://doi.org/10.1023/A:1017926423023
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DOI: https://doi.org/10.1023/A:1017926423023