Probing the Mechanical Behavior of Nanostructured Materials Through Micropillar Compression Experiments

Date

2018-10-27

Author

Alpkaya, Alican Tuncay
Motallebzadeh, Amir
Özerinç, Sezer

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Recent developments in focused ion beam (FIB) milling and nanomechanical sensing technologies have enabled the fabrication of microspecimens and their mechanical testing at the small scale. One of the most recent micromechanical testing techniques is micropillar compression, where a microcylindrical specimen is milled by FIB and it is tested under uniaxial compression using a nanoindenter. In this study we utilize this technique to investigate the mechanical behavior of Cu-Nb nanolayers. The samples were prepared by magnetron sputtering on single crystal silicon wafers and their microstructure was investigated by X-ray diffraction and electron microscopy. The micropillars with 1 μm diameter and 2.5 μm height were fabricated by FIB milling and tested using a nanoindenter with a flat diamond punch. The micropillar compression technique enables the direct measurement of the elastic modulus and the yield strength of the pillars, and provide insight to the high strength of nanostructured materials.

URI

http://immc.metem.org.tr/index.php/2016-03-03-13-14-44
https://hdl.handle.net/11511/85659
http://www1.metalurji.org.tr/immc2018/03_NMS/123.pdf

Conference Name

19th International Metallurgy and Materials Congress, (25 - 27 Ekim 2018)

Collections

Department of Mechanical Engineering, Conference / Seminar

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Citation Formats

A. T. Alpkaya, A. Motallebzadeh, and S. Özerinç, “Probing the Mechanical Behavior of Nanostructured Materials Through Micropillar Compression Experiments,” presented at the 19th International Metallurgy and Materials Congress, (25 - 27 Ekim 2018), İstanbul, Türkiye, 2018, Accessed: 00, 2021. [Online]. Available: http://immc.metem.org.tr/index.php/2016-03-03-13-14-44.