Indentation-induced stress distribution and pressure effect on the resistivity of YSZ

Daiko, Yusuke; Takahashi, Eri; Guéguen, Yves; Muto, Hiroyuki; Matsuda, Atsunori; Yazawa, Tetsuo; Rouxel, Tanguy; Iwamoto, Yuji

doi:10.1016/j.ssi.2015.12.026

Cited by 4 publications

(2 citation statements)

References 40 publications

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“…Finite-element modeling (FEM) of resistive-nanoindentation is essentially used to provide mechanics-related data that are postprocessed to extract electrical resistance from analytical formulas [40][41][42]. Very few finiteelement analyses of both electrical and mechanical behaviors have been reported [43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Resistive-nanoindentation on gold: Experiments and modeling of the electrical contact resistance

Volpi

Rusinowicz

Comby-Dassonneville

et al. 2021

Review of Scientific Instruments

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This paper reports the experimental, analytical and numerical study of resistive-nanoindentation tests performed on gold samples (bulk and thin film). First the relevant contributions to electrical contact resistance are discussed and analytically described. A brief comparison of tests performed on gold and on natively-oxidized metals highlights the high reproducibility and the voltage-independence of experiments on gold (thanks to its oxide-free surface). Then the evolution of contact resistance during nanoindentation is fully explained in terms of electronic transport regimes: starting from tunneling, electronic transport is then driven by ballistic conduction before ending with pure diffusive conduction. The corresponding analytical expressions, as well as their validity domains, are determined and compared with experimental data, showing excellent agreement. From there, focus is made on the diffusive regime.Resistive-nanoindentation outputs are fully described by analytical and finite-element modeling. The developed numerical framework allows a better understanding of the main parameters: it first assesses the technique capabilities (validity domains, sensitivity to tip defect, sensitivity to rheology, effect of an oxide layer,…), but it also validates the different assumptions made on current line distribution. Finally it is shown that a simple calibration procedure allows a well-resolved monitoring of contact area during resistive-nanoindentation performed on samples with complex rheologies (ductile thin film on elastic substrate).Comparison to analytical and numerical approaches highlights the strength of resistivenanoindentation for continuous area monitoring.

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Section: Introductionmentioning

confidence: 99%

Resistive-nanoindentation on gold: Experiments and modeling of the electrical contact resistance

Volpi

Rusinowicz

Comby-Dassonneville

et al. 2021

Review of Scientific Instruments

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“…From the analysis using a finite element method (FEM), it was clarified that the impedance value especially in the minute load region lower than 5 N has an extremely large influence on the determination of ÁV . 20) However, with this step-by-step method of increasing the load, it is very difficult to reduce the step to 5 N or less, and impedance values in the 0 to 5 N region are not obtained. In this study, as shown in Fig.…”

mentioning

confidence: 99%

Determination of the activation volume for O<sup>2−</sup> ion conduction of YSZ via single-sweeping of load by utilizing an electrochemical indenter

Daiko

Kato

Honda

et al. 2021

J. Ceram. Soc. Japan

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A few GPa-order high-pressure impedance measurement was performed by utilizing an indentation method, which is often used to evaluate mechanical characteristics, and the alternating current (AC) impedance method simultaneously. We succeeded in estimating the activation volume (ÁV = 3.2 cm 3 /mol) for O 2¹ ion conduction of YSZ with a single sweep of load at 0.25 N/s up to 25 N. Such a quick and easy method for determining ÁV is completely new that has not been proposed so far.

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Shape deformation analysis of anode-supported solid oxide fuel cell by electro-chemo-mechanical simulation

et al. 2018

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Indentation-induced stress distribution and pressure effect on the resistivity of YSZ

Cited by 4 publications

References 40 publications

Resistive-nanoindentation on gold: Experiments and modeling of the electrical contact resistance

Resistive-nanoindentation on gold: Experiments and modeling of the electrical contact resistance

Determination of the activation volume for O<sup>2−</sup> ion conduction of YSZ via single-sweeping of load by utilizing an electrochemical indenter

Shape deformation analysis of anode-supported solid oxide fuel cell by electro-chemo-mechanical simulation

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