College of Geophysics;
Chengdu University of Technology;
Chengdu 610059;
China;
College of Optoelectronic Technology;
Chengdu University of Information Technology;
Chengdu 610225;
China;
College of Nuclear Technology and Automation Engineering;
Chengdu University of Technology;
Chengdu 610059;
China;
hydrous fayalite; first-principles theory; crystal structure; elasticity;