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Water diffusion in cracked surface layers : Unloaded cracks

Fett, Theo; Schell, Günter

Abstract (englisch):
Water diffusion at the surface of a silica glass is increased when surface cracks are present which were inadvertently introduced by the surface treatment of samples. Due to the larger true surface exposed to the humid environment, an apparently increased diffusion constant must occur. With the help of a simple model the influence of the cracks for small water penetration depths is described. Simplified approximations are given which allow a continuous interpolation of two limit solutions over greater penetration depths or diffusion times. In the present report we restrict our considerations on unloaded cracks.

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Volltext §
DOI: 10.5445/IR/1000096825
Veröffentlicht am 24.07.2019
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Keramische Werkstoffe und Technologien (IAM-KWT)
Publikationstyp Forschungsbericht/Preprint
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2194-1629
KITopen-ID: 1000096825
Verlag Karlsruher Institut für Technologie (KIT)
Umfang VI, 8 S.
Serie KIT Scientific Working Papers ; 124
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
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