Abstract
The micromechanical analysis of composite materials has become indispensable in the field of material science and for industrial applications, where small sample sizes predominate. In recent years, nanoindentation has been more readily utilized within the cultural heritage field, producing invaluable insight in the properties of artists’ materials. To take full advantage of the technique, however, issues related to the scale of the analysis need to be addressed. These include understanding the influence of sample preparation and material heterogeneity on the obtained results as well as establishing correlations between micro/nano-scale and macro-scale mechanical parameters. Moreover, the nanoindentation tests of time-dependent paints and adhesives can be difficult to interpret and thus require the development of unique measuring protocols. This review discusses nanoindentation studies of artists’ paints carried out over the last two decades. Analysis of presented experimental and theoretical works focuses on comprehending limitations of the technique and developing strategies to overcome them. We demonstrate how consistent and reliable measurements can be performed when experimental protocols consider the effects of geometry, roughness, and time-dependent properties of paint, as well as the compliance of the measuring system. Development of measurement protocols accounting for specific properties of historic and artists’ paints opens up the prospect of more routine application of nanoindentation in the field of cultural heritage.
Highlights
Mechanical characterization of materials constituting works of art is crucial for understanding the environmentally-induced risk of damage and developing passive and active conservation strategies [1]
Nanoindentation was originally designed for the analysis of homogenous and nonviscous media, but over past decades new experimental protocols and methods of data analysis extended its applicability to a diverse range of materials
An indentation test consists of pressing an indenter of a well-defined geometry into the sample surface, with the resulting load-displacement curve serving as the ‘mechanical fingerprint’ of the material
Summary
Mechanical characterization of materials constituting works of art is crucial for understanding the environmentally-induced risk of damage and developing passive and active conservation strategies [1]. In the heritage conservation field, the standard approach is to limit sampling to the absolute minimum. Nanoindentation was originally designed for the analysis of homogenous and nonviscous media, but over past decades new experimental protocols and methods of data analysis extended its applicability to a diverse range of materials. The versatility of this technique with respect to the determination of various material properties and accommodation of small sample sizes fills a needed role in the cultural heritage field.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
