THERMAL SCIENCE

International Scientific Journal

Man Lei

,

Fa-Ning Dang

,

Hai-Bin Xue

,

Yu Zhang

,

Ming-Ming He

STUDY ON MECHANICAL PROPERTIES OF GRANITE MINERALS BASED ON NANOINDENTATION TEST TECHNOLOGY

ABSTRACT
In this paper, the nanoscale mechanical properties of quartz, feldspar, and mica in granite are studied by the nanoindentation technique. Firstly, the surface morphol­ogy of each mineral composition in granite is obtained by a SEM. Secondly, the elastic modulus and hardness of three minerals in granite are calculated through the load-displacement curve obtained by the nanoindentation test. Based on the energy analysis method, the nanometer fracture toughness of three minerals in granite is obtained. Finally, the correlation between the elastic modulus, the hard­ness, and the fracture toughness are obtained by experimental data.
KEYWORDS
granite, nanoindentation test, fracture toughness, mechanical property
PAPER SUBMITTED: 2020-04-07
PAPER REVISED: 2020-06-15
PAPER ACCEPTED: 2020-08-09
PUBLISHED ONLINE: 2021-12-24
DOI REFERENCE: https://doi.org/10.2298/TSCI2106457L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 6, PAGES [4457 - 4463]
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Study on mechanical properties of granite minerals based on nanoindentation test technology

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence