Nanoindentation analysis as a two-dimensional tool for mapping the mechanical properties of complex surfaces

By N. Randall, M. Vandamme, Franz-Josef Ulm. 2009

224 citations recorded by the source corpus.

Instrumented indentation (referred to as nanoindentation at low loads and low depths) has now become established for the single point characterization of hardness and elastic modulus of both bulk and coated materials. This makes it a good technique for measuring mechanical properties of homogeneous materials. However, many composite materials are composed of material phases that cannot be examined in bulk form ex situ (e.g., carbides in a ferrous matrix, calcium silicate hydrates in cements, etc.). The requirement for in situ analysis and characterization of chemically complex phases obviates conventional mechanical testing of large specimens representative of these material components. This paper will focus on new developments in the way that nanoindentation can be used as a two-dimensional mapping tool for examining the properties of constituent phases independently of each other. This approach relies on large arrays of nanoindentations (known as grid indentation) and statistical analysis of the resulting data.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/2d44e21b77d024d1f6d99c7b9e9a49bb80398c83

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In Atomic and Molecular Physics, and Optics

In Materials Chemistry

In Mechanics of Materials

Citations in the corpus

A novel approach for micro‐scale characterization and modeling of geomaterials incorporating actual material heterogeneity (2012, methodology): “which is commonly observed in materials comprising phases with significantly different hardness/stiffness [Randall et al., 2009], is caused by the elastic response of the underlying material, implying that the h/D criterion might not be suffi-”
Application of nanoindentation technology in rocks: a review (2020, background): “Geomaterials are hard to polish because of the mismatch in properties between their constituent phases (Mahabadi et al. 2012; Randall et al. 2009).”
Influence of microscale heterogeneity and microstructure on the tensile behavior of crystalline rocks (2014, methodology): “5325 were plotted as frequency plots (histograms) of the measured modulus and were analyzed by the so-called deconvolution technique [Randall et al., 2009].”