Substrate influence in Young's modulus determination of thin films by indentation methods: Cubic boron nitride as an example

Richter, Frank; Herrmann, Matthias; Molnar, F.; Chudoba, T.; Schwarzer, Norbert; Keunecke, M.; Bewilogua, K.; Zhang, X.W.; Boyen, Hans‐Gerd; Ziemann, P.

doi:10.1016/j.surfcoat.2006.08.124

Cited by 41 publications

(29 citation statements)

References 41 publications

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“…Instrumented indentation testing, often called nano-indentation, is used for the mechanical characterization of thin coatings. The main challenge, which is subject of numerous prior research works, is to estimate the influence of the substrate on the measurements [2][3][4][5][6][7][8][9][10][11]. In order to evaluate the correct mechanical properties of a thin film, low loads and indentation depths are required.…”

Section: Introductionmentioning

confidence: 99%

Finite element method-assisted acquisition of the matrix influence on the indentation results of an embedded hard phase

Pöhl

Huth

Theisen

2013

Materials Science and Engineering: A

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Section: Introductionmentioning

confidence: 99%

Finite element method-assisted acquisition of the matrix influence on the indentation results of an embedded hard phase

Pöhl

Huth

Theisen

2013

Materials Science and Engineering: A

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“…During a small conference in Italy in 1999, the author learned of that concept and decided to work out a theory solving not only the problem for the mechanical contact of an indenter with general shape of symmetry of revolution, but also to extend this solution to layered structures [24]. Later on, he also presented a variety of applications together with Pharr, Chudoba, Richter and others [5,6,8,9,[25][26][27]. Soon, it became clear, however, that the "effective indenter theory", even though powerful, was not something one could easily give to the engineer or an indenter experimentalist and expect her or him to use it as a tool for the analysis of indentation data.…”

Section: About the Extension Of The Oliver And Pharr Methods To Analyzmentioning

confidence: 99%

Completely Analytical Tools for the Next Generation of Surface and Coating Optimization

Schwarzer¹

2014

Coatings

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Usually, some severe efforts are required to obtain tribological parameters like Archard's wear depth parameter k d . Complex tribological experiments have to be performed and analyzed. The paper features an approach where such parameters are extracted from effective interaction potentials in combination with more physical-oriented measurements, such as Nanoindentation and physical scratch. Thereby, the effective potentials are built up and fed from such tests. By using effective material potentials one can derive critical loading situations leading to failure (decomposition strength) for any contact situation. A subsequent connection of these decomposition or failure states with the corresponding stress or strain distributions allows the development of rather comprehensive tribological parameter models, applicable in wear and fatigue simulations, as demonstrated in this work. From this, a new relatively general wear model has been developed on the basis of the effective indenter concept by using the extended Hertzian approach for a great variety of loading situations. The models do not only allow to analyze certain tribological experiments, such as the well known pin-on disk test or the more recently developed nano-fretting test, but also to forward simulate such tests and even give hints for structured optimization or result in better component life-time prediction. The work will show how the procedure has to be applied in general and a small selection of practical examples will be presented.

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“…Though, it was pointed out in case of superhard coatings in (10), (11) that this rule is insufficient to obtain precise results. Moreover, it should be noted that, for very thin films (few dozens of nanometers) performing an indentation at 10% of the thickness is limited by the precision of the apparatus, and indenter size problems.…”

Section: Introductionmentioning

confidence: 99%

Identification of Young's Modulus from Indentation Testing and Inverse Analysis

Prou

Kishimoto

Constantinescu

2010

JMMP

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In this study, a numerical method for the identification of the Young's modulus of linear elastic coated materials from continuous indentation test is first presented. The identification is based on an inverse analysis where the minimization of a cost functional is performed by a gradient descent algorithm. The main result is the computation of cost function gradient by using a direct differentiation technique, resulting in a timesaving method compared to the widely used finite difference method. The validity and illustration of this approach is shown through several numerical examples. The second part of this article is dedicated to the identification of elasto-plastic thin films Young's modulus. A new method is proposed, where the inverse analysis relies only on finite element computations for elastic materials.

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Substrate influence in Young's modulus determination of thin films by indentation methods: Cubic boron nitride as an example

Cited by 41 publications

References 41 publications

Finite element method-assisted acquisition of the matrix influence on the indentation results of an embedded hard phase

Finite element method-assisted acquisition of the matrix influence on the indentation results of an embedded hard phase

Completely Analytical Tools for the Next Generation of Surface and Coating Optimization

Identification of Young's Modulus from Indentation Testing and Inverse Analysis

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