Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 13, 2020 - September 16, 2020
Thermodynamic state of inner core of the earth is very high temperature and high pressure. Its composition is Fe, Ni and light elements. Although the inner core is a solid, its crystallographic structure is still undefined. In present study, to obtain the basic view for this discussion, Ni metal is simulated by molecular dynamics (MD) method under various conditions up to high temperature and high pressure corresponding to the inside of the earth. Thermodynamic quantities, self-diffusion coefficient and radial distribution functions are analyzed by statistical mechanics form simulated time series data. Phase diagram of Ni is obtained as function of temperature and density/pressure under conditions corresponding to the inner of the earth.
