TY - JOUR
TI - Study on mechanical properties of granite minerals based on nanoindentation test technology
AU - Lei Man
AU - Dang Fa-Ning
AU - Xue Hai-Bin
AU - Zhang Yu
AU - He Ming-Ming
JN - Thermal Science
PY - 2021
VL - 25
IS - 6
SP - 4457
EP - 4463
PT - Article
AB - 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.