11: Coating mechanics

TLP Library I · LibreTexts

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    www.doitpoms.ac.uk/tlplib/co...nics/index.php

    Learning Objectives

    • Appreciate the meaning of a misfit strain between the stress-free (in-plane) dimensions of two layers
    • Understand how misfit strains can arise and how they give rise to stresses and strains in the layers, depending on their elastic properties and thicknesses
    • See how the general case is simplified when one of the layers (a coating) is much thinner than the other (a substrate) and understand the Stoney equation
    • Be able to predict the curvature that tends to arise in such systems
    • Be able to predict whether debonding is likely to occur, given the value of the interfacial fracture energy

    This page titled 11: Coating mechanics was last modified on Thu, 26 Nov 2020 20:30:54 GMT and is shared under a CC BY-NC-SA 2.0 license and was authored, remixed, and/or curated by Dissemination of IT for the Promotion of Materials Science (DoITPoMS) via source content that was edited to the style and standards of the LibreTexts platform.