Material testing of natural stones used in historical buildings based on scanning electron microscopy and nanoindentation

0397227 - ÚTAM 2014 RIV CH eng C - Conference Paper (international conference)
Koudelka_ml., Petr - Kytýř, Daniel - Petráňová, Veronika - Lukeš, J. - Doktor, Tomáš - Valach, Jaroslav
Material testing of natural stones used in historical buildings based on scanning electron microscopy and nanoindentation.
Key Engineering Materials. Vol. 586. Durnten-Zurich: Trans Tech Publications, 2014 - (Pešek, L.; Zubko, P.), s. 186-189. ISBN 978-3-03785-876-9. ISSN 1013-9826.
[International Conference on Local Mechanical Properties /9./. Levoča (SK), 07.11.2012-09.11.2012]
R&D Projects: GA ČR(CZ) GBP105/12/G059
Institutional support: RVO:68378297
Keywords : local phase distribution * SEM * nanoindentation * representative volume element
Subject RIV: JN - Civil Engineering
http://www.scientific.net/KEM.586.186

In the case of material parameters required for evaluation of built heritage preservation state, knowledge of the least possible volume of removed sample is essential in order to minimize damage accumulation to the buildings. These requirements lead to determination of representative volume element (RVE) that was in this paper calculated using combination of image and signal processing techniques. Then, a detailed map of material properties was created using nanoindentation to evaluate local characteristics of the material. Furthermore, atomic composition of samples was quantified by energy dispersive spectrometry (EDX) detector for scanning electron microscopy (SEM) device. Presented method based on combination of SEM, EDX and nanoindentation techniques demonstrates possibility of effective testing in the field of historical buildings preservation.
Permanent Link: http://hdl.handle.net/11104/0225426