<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The aim of this paper is to present an example of the material microstructure characterization with the use of X-ray micro-CT and nanoindentation measurements. Firstly, the current scope of application of the aforementioned techniques is provided within different fields of science. Then, background of each of the methods is presented. The methodology of X-ray micro-CT is described with the emphasis on the Beer’s law formulation. In addition, the basics of the nanoindentation technique are outlined and major formulas for the hardness and Young’s modulus calculation are given. Finally, example results for a concrete sample are presented. The microstructure of the selected material is firstly characterized in terms of geometry using the results from the microtomograhy measurements, e.g., porosity and attenuation profiles, pore and aggregate size distribution, shape factor of pores, etc. Next, the results of the nanoindentation tests are provided, namely the hardness and Young’s modulus versus the height of the sample. The influence of the number of tests and statistical analysis on the final results is underlined.</p></abstract>

The aim of this paper is to present an example of the material microstructure characterization with the use of X-ray micro-CT and nanoindentation measurements. Firstly, the current scope of application of the aforementioned techniques is provided within different fields of science. Then, background of each of the methods is presented. The methodology of X-ray micro-CT is described with the emphasis on the Beer’s law formulation. In addition, the basics of the nanoindentation technique are outlined and major formulas for the hardness and Young’s modulus calculation are given. Finally, example results for a concrete sample are presented. The microstructure of the selected material is firstly characterized in terms of geometry using the results from the microtomograhy measurements, e.g., porosity and attenuation profiles, pore and aggregate size distribution, shape factor of pores, etc. Next, the results of the nanoindentation tests are provided, namely the hardness and Young’s modulus versus the height of the sample. The influence of the number of tests and statistical analysis on the final results is underlined.

Microstructure Characterization by Means of X-ray Micro-CT and Nanoindentation Measurements

Wrocław University of Technology, Faculty of Civil Engineering, Institute of Geotechnics and Hydrotechnics, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

Studia Geotechnica et Mechanica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The aim of this paper is to present an example of the material microstructure characterization with the use of X-ray micro-CT and nanoindentation measurements....

Microstructure Characterization by Means of X-ray Micro-CT and Nanoindentation Measurements

Published Online: Mar 27, 2015

Page range: 75 - 84

DOI: https://doi.org/10.1515/sgem-2015-0009

Keywords
micro-CT, nanoindentation, microstructure, composite

© by Magdalena Rajczakowska

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Microstructure Characterization by Means of X-ray Micro-CT and Nanoindentation Measurements

Published Online: Mar 27, 2015

Page range: 75 - 84

DOI: https://doi.org/10.1515/sgem-2015-0009

Keywordsmicro-CT, nanoindentation, microstructure, composite

© by Magdalena Rajczakowska

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
micro-CT, nanoindentation, microstructure, composite