2010 Fiscal Year Final Research Report
Development of viscosity measurement method for liquid Fe-alloy at ultrahigh pressure using diamond/SiC composite anvils
| Project/Area Number |
20340154
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Petrology/Mineralogy/Science of ore deposit
|
|---|
| Research Institution | Japan Synchrotron Radiation Research Institute |
|---|
Principal Investigator |
FUNAKOSHI Ken-Ichi Japan Synchrotron Radiation Research Institute, 利用研究促進部門, 副主幹研究員 (30344394)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SHIMONO Masaru 龍谷大学, 理工学部, 実験講師 (30319496)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
OHTAKA Osamu 大阪大学, 理学研究科, 准教授 (40213748)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | 高圧 / ダイヤモンド / アンビル / 放射光 / 粘性 / 鉄合金 / 融体 |
|---|
| Research Abstract |
We have established the process for producing the new anvil using diamond/SiC composite material, which has high hardness and high X-ray transparency, and developed the viscosity measurement technique of X-ray falling sphere method at ultrahigh pressure. Due to developed experimental techniques using the diamond/SiC composite anvil, high pressure and high temperature have been successfully generated up to 2000°C and 32 GPa. We performed X-ray falling sphere viscosity measurements of liquid Fe-S system at high pressures and high temperatures, and determined the viscosity of the Earth's outer core from obtained precise data.
|
