Tenure in FRIS 2014.4-2018.2
Assistant ProfessorAdvanced Basic Science
- Mentor Information
- Junji Saida (Frontier Research Institute for Interdisciplinary Sciences)
|Research Fields||High-pressure and high-temperature experiments, Planetary Science|
|Academic Society Membership||The Japan Society of High Pressure Science and Technology, Japan Geoscience Union, The Japan Institute of Metals and Materials, The Japanese Society for Planetary Sciences, Japan Association of Mineralogical Sciences|
The cores of the Earth and other differentiated bodies are believed to comprise iron and various amounts of light elements, such as hydrogen (H), carbon (C), oxygen (O), silicon (Si), and sulfur (S). Then, studies of physical properties for iron alloyed with those light elements at high pressure and high temperature characteristic of interior planetary conditions are important.
My research focus is to measure densities and sound velocities of iron and iron alloyed at high pressure and high temperature using an X-ray diffraction method and ultrasonic technique. Comparing those high-pressure and high-temperature measurements with observation-based geophysical data, I would like to reveal the species of major light elements and their abundances in the core.
I am also working on measuring the structure and viscosity of liquid iron and liquid iron alloyed under high pressure and high temperature conditions, in order to investigate the relationship between the local structure and physical property of liquid metal and discuss the formation on planetary cores.
In addition, using these high-pressure and high temperature techniques, I would like to develop synthetic methods of new materials.