Effect of Actual Indenter Shape on the Results of Spherical Nanoindentation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F16%3A00304896" target="_blank" >RIV/68407700:21340/16:00304896 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.368.25" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/DDF.368.25</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.368.25" target="_blank" >10.4028/www.scientific.net/DDF.368.25</a>

Result language
angličtina
Original language name
Effect of Actual Indenter Shape on the Results of Spherical Nanoindentation
Original language description
Actual shape of the diamond spherical indenter of nominal radius 20 μm was investigated in this study. 3D reconstruction was performed by atomic force microscope and by the method of stereopair using SEM images of the tip taken under several different angles. The results were compared with the shape obtained indirectly by the calibration performed on specimens with known Young's modulus. It was found that lower effective values of tip radius for the small penetration depths are caused by the irregular geometry of contact between indenter and specimen surface. With increasing penetration depth the radius increased to the theoretical values and it decreased again for high penetration depths. The stress-strain curves were determined using corrected effective indenter radius.
Czech name
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Czech description
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Project
<a href="/en/project/GB14-36566G" target="_blank" >GB14-36566G: Multidisciplinary research centre for advanced materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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