Open AccessStudy on mechanical properties of granite minerals based on nanoindentation test technology
Author(s) -
Lei Man,
Faning Dang,
Haibin Xue,
Yu Zhang,
Mingming He
Publication year - 2021
Publication title -
thermal science/thermal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 43
eISSN - 2334-7163
pISSN - 0354-9836
DOI - 10.2298/tsci2106457l
Subject(s) - nanoindentation , materials science , feldspar , quartz , fracture toughness , mica , elastic modulus , composite material , modulus , fracture (geology) , toughness , nanometre , mineralogy , geology
In this paper, the nanoscale mechanical properties of quartz, feldspar, and mica in granite are studied by the nanoindentation technique. Firstly, the surface morphol?ogy 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 hard?ness, and the fracture toughness are obtained by experimental data.