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2019 | OriginalPaper | Chapter

Role of Compactness on Hardness and Reduced Modulus of Vaterite Determined with Nanoindentation

Authors : Radek Ševčík, Vladimír Hrbek

Published in: Proceedings of the Second International Conference on Theoretical, Applied and Experimental Mechanics

Publisher: Springer International Publishing

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Abstract

The influence of compaction degree of synthetic vaterite, the metastable polymorph of calcium carbonate, on determined mechanical properties was investigated using nanoindentation instrument. Specimens for measurements were prepared as pressed pellets with the application of three different forces—40, 60 and 80 kN. The highest values of reduced modulus and hardness were detected for vateritic pellet pressed at 60 kN. For this specimen, reduced modulus and hardness were found to be in ranges 74–10 and 5.2–0.3 GPa, respectively. Observation with scanning electron microscope showed increase compactness of pellet’s microstructure and an increase in density and length of microcracks within vateritic pellets when higher pressing force was applied.

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next chapter Approximate Mode Shape for Damped Structures
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Metadata
Title
Role of Compactness on Hardness and Reduced Modulus of Vaterite Determined with Nanoindentation
Authors
Radek Ševčík
Vladimír Hrbek
Copyright Year
2019
Book
Proceedings of the Second International Conference on Theoretical, Applied and Experimental Mechanics

Print ISBN: 978-3-030-21893-5

Electronic ISBN: 978-3-030-21894-2

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-030-21894-2_1

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