Journal ArticleDOI
The stylus or scratch method for thin film adhesion measurement: some observations and comments
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TLDR
In this paper, the effect of applying a rounded stylus to thin metallic films on glass substrates has been investigated using diamond and steel styli with tip radii of approximately 25 μm and loadings of up to 230 g.Abstract:
The effect of applying a rounded stylus to thin metallic films on glass substrates has been investigated using diamond and steel styli with tip radii of approximately 25 μm and loadings of up to 230 g. The films were vacuum-deposited indium, tin, lead, gold, copper, aluminium, nickel, chromium and molybdenum of various thicknesses up to 32 μm. Scanning electron microscope and optical interference microscope observations showed that the process of scratch formation was generally very complex and varied with the film material, indicating that it is not possible to deduce absolute values of adhesion forces using a simple general theoretical model. The method can, however, be used with caution for qualitative comparisons under certain restricted conditions.read more
Citations
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Adhesion testing by the scratch test method: The influence of intrinsic and extrinsic parameters on the critical load
TL;DR: In this paper, the critical load determined by the scratch test is widely regarded as representative of coating adhesion; however, it remains difficult to express quantitatively the adherence because the critical loads depend on several parameters related to the testing conditions and to the coating-substrate system.
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Scratch adhesion testing of hard coatings
TL;DR: In this article, the scratch test for adhesion is reviewed as the only method currently available for testing thin, hard and well-adhering coatings such as TiC on steel or cemented carbide substrates.
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The use of scratch adhesion testing for the determination of interfacial adhesion: The importance of frictional drag
TL;DR: The scratch adhesion test can be considered as a combination of (i) an indentation stress field, (ii) an internal stress field and (iii) a frictional stress field.
Journal ArticleDOI
The science of adhesion
TL;DR: In this paper, the authors reviewed the mechanics and mechanisms of failure of adhesive joints and the effects of various operating environments on joint performance, including surface and interfacial phenomena, including mechanisms of adhesion.
References
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Journal ArticleDOI
The Stress Field Created by a Circular Sliding Contact
G. M. Hamilton,L. E. Goodman +1 more
Journal ArticleDOI
Measurement of Adhesion of Thin Films
P. Benjamin,C. Weaver +1 more
TL;DR: In this article, a rounded steel point of smooth contour is drawn across the film surface and the load on the point is gradually increased until the film is removed, leaving a clear channel.
Journal ArticleDOI
The Determination of Static and Dynamic Yield Stresses Using a Steel Ball
TL;DR: In this paper, the static and dynamical yield stress of the material of a thick steel plate may be estimated by pressing and by dropping a hard steel ball on a plane surface of the plate which has been ground and then polished.
Journal ArticleDOI
Some factors influencing the adhesion of films produced by vacuum evaporation
TL;DR: HAL as discussed by the authors is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not, which may come from teaching and research institutions in France or abroad, or from public or private research centers.
Journal ArticleDOI
Plastic Flow and Fracture of Glass
TL;DR: In this paper, a completely new approach is attempted in which glass is treated as an elastic-plastic solid and a complete theory of glass flow and strength is developed, based on brittle fracture theory.