Nanoscale inhomogeneity of Earth's constituent materials studied by in-situ small angle X-ray scattering under high pressure
| Project/Area Number |
23654156
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 超高圧実験 / 放射光 X 実験 / その場小角散乱 / シリカガラス / フュームドシリカ / メソポーラスシリカ / 粒界 / 空孔 / 高圧下その場小角X線散乱 / 超高圧 / 小角X線散乱 / 放射光 |
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| Research Abstract |
We have developed techniques for in-situ small-angle X-ray scattering measurement under high pressure. It is now possible to collect data for small samples in a diamond-anvil cell at a Q-range approximately from 0.1 to 2.0 nm-1. Three types of noncrystalline SiO2 have been measured so far with the new techniques and the following interesting results have been obtained; (1) the density difference between grains and grain boundaries did not completely diminish even at the highest pressure in experiments for silica glass and fumed silica up to 50 GPa and (2) the size of pores enlarged with increasing pressure in experiments for mesoporous silica up to 20 GPa.
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Report
(3 results)
Research Products
(46 results)
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[Presentation] 極限超高圧の科学2012
Author(s)
船守展正(招待)
Organizer
放射光将来光源利用サイエンス若手シンポジウム
Place of Presentation
東京大学(東京都)
Year and Date
2012-08-18
Related Report
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[Presentation] ルチル型高圧相中のミュオニウム2012
Author(s)
船守展正(招待),小嶋健児,若林大佑,佐藤友子,谷口尚,西山宣正,入舩徹男,飯塚毅,友野大,松崎禎市郎,宮崎正範,平石雅俊,幸田章宏,門野良典
Organizer
第4回MLFシンポジウム
Place of Presentation
日本科学未来館(東京都)
Related Report
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[Presentation] 極限超高圧の科学
Author(s)
船守展正
Organizer
放射光将来光源利用サイエンス若手シンポジウム
Place of Presentation
東京大学（東京都）
Related Report
Invited
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