| Project/Area Number |
20340154
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | Japan Synchrotron Radiation Research Institute |
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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)
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| Co-Investigator(Kenkyū-buntansha) |
SHIMONO Masaru 龍谷大学, 理工学部, 実験講師 (30319496)
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| Co-Investigator(Renkei-kenkyūsha) |
OHTAKA Osamu 大阪大学, 理学研究科, 准教授 (40213748)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2008: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
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| Keywords | 高圧 / ダイヤモンド / アンビル / 放射光 / 粘性 / 鉄合金 / 融体 / SiC / 鉄 |
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| 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.
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