Improvements in the indentation method with a surface force apparatus

Bec, Sandrine; Tonck, A.; Georges, J. M.; Georges, E.; Loubet, Jean‐Luc

doi:10.1080/01418619608239707

Cited by 167 publications

(105 citation statements)

References 18 publications

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“…the methodology of Oliver and Pharr [8] for sinking-in or the methodology of Loubet et al [26][27][28] for piling-up. These two methodologies mainly differ in the calculation of the contact indenter displacement (see Eqs.…”

Section: Resultsmentioning

confidence: 99%

“…(7) when considering the methodology of Oliver and Pharr [8] or by Eq. (8) for the methodology of Loubet et al [26][27][28].…”

Section: Resultsmentioning

confidence: 99%

“…When piling-up is observed at the surface of the indented material around the indent, the methodology of Oliver and Pharr underestimates the actual indentation depth. For this reason, Loubet et al [26][27][28] suggested the computation of the contact depth by means of the following expression:…”

Section: Indentation On Massive Materialsmentioning

confidence: 99%

“…Both in nano and in microindentation, the same Berkovich indenter type is used. For analysing the load-displacement curve, the models of Oliver and Pharr [8] and Loubet et al [26][27][28] are applied to take into account the deformation around the indent, sinking-in or piling-up, respectively. Indeed, this differentiation of the deformation mode is necessary since it affects the contact depth calculation and consequently, the contact area calculation.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

An analysis of the elastic properties of a porous aluminium oxide film by means of indentation techniques

Hemmouche¹,

Chicot²,

Amrouche³

et al. 2013

Materials Science and Engineering: A

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. a b s t r a c tThe elastic modulus of thin films can be directly determined by instrumented indentation when the indenter penetration does not exceed a fraction of the film thickness, depending on the mechanical properties of both film and substrate. When it is not possible, application of models for separating the contribution of the substrate is necessary. In this work, the robustness of several models is analyzed in the case of the elastic modulus determination of a porous aluminium oxide film produced by anodization of an aluminium alloy. Instrumented indentation tests employing a Berkovich indenter were performed at a nanometric scale, which allowed a direct determination of the film elastic modulus, whose value was found to be approximately 11 GPa. However, at a micrometric scale the elastic modulus tends toward the value corresponding to the substrate, of approximately 73 GPa. The objective of the present work is to apply different models for testing their consistency over the complete set of indentation data obtained from both classical tests in microindentation and the continuous stiffness measurement mode in nanoindentation. This approach shows the continuity between the two scales of measurement thus allowing a better representation of the elastic modulus variation between two limits corresponding to the substrate and film elastic moduli. Gao's function proved to be the best to represent the elastic modulus variation.

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Section: Resultsmentioning

confidence: 99%

“…(7) when considering the methodology of Oliver and Pharr [8] or by Eq. (8) for the methodology of Loubet et al [26][27][28].…”

Section: Resultsmentioning

confidence: 99%

Section: Indentation On Massive Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An analysis of the elastic properties of a porous aluminium oxide film by means of indentation techniques

Hemmouche¹,

Chicot²,

Amrouche³

et al. 2013

Materials Science and Engineering: A

View full text Add to dashboard Cite

show abstract

“…With high-resolution testing equipment, this facilitates the determination of properties at the micrometer and nanometre scales [9][10][11]. For this reason the method has become a primary technique for determining the mechanical properties of thin films without removing the film from the substrate and as well as for capturing small structural features [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. Nanoindentation technique nowadays is applied for characterisation of thin films prepared from metals, polymers, rubber-like materials [30] and soft materials.…”

Section: Introductionmentioning

confidence: 99%