Determination of the viscosity and density of liquid iron alloys at high pressure and high temperature and implications for Mars' core
Project/Area Number |
23340167
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Petrology/Mineralogy/Science of ore deposit
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Research Institution | 一般財団法人総合科学研究機構(総合科学研究センター(総合科学研究室)及び東海事業センター(利用研究促進部)) (2013-2014) Japan Synchrotron Radiation Research Institute (2011-2012) |
Principal Investigator |
FUNAKOSHI Kenichi 一般財団法人総合科学研究機構(総合科学研究センター(総合科学研究室)及び東海事業, その他部局等, その他 (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, 大学院理学研究科, 准教授 (40213748)
|
Project Period (FY) |
2011-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2011: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
|
Keywords | ダイヤモンド複合体 / アンビル / 放射光 / 高温高圧 / 粘性 / 密度 / 融体 / 落球法 / 鉄融体 / 鉄合金融体 |
Outline of Final Research Achievements |
We designed a new system for measuring the viscosities of liquids at high pressure using the falling-sphere technique, combined with synchrotron radiation X-ray and a diamond/SiC composite anvil. Installation of the system and improvement of the coating marker sphere have allowed the viscosity measurements of liquid iron alloys at SPring-8. Considering the synthesis method of diamond/SiC composite, a new harder anvil than a conventional tungsten carbide anvil has been developed. We also designed a new method for measuring the density and viscosity of liquids using the falling-sphere technique and successfully determined the density and viscosity of liquid sulfur at high pressures. Our results suggest that sulfur may not play an important role in Mars' core.
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Report
(5 results)
Research Products
(24 results)
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[Journal Article] P-V-T equation of state of Na-majorite to 21GPa and 1673K2014
Author(s)
Dymshits, A.M., Litasov, K.D., Shatskiy, A., Sharygin, I.S., Ohtani, E., Suzuki, A., Pokhilenko, N.P., Funakoshi, K.-I.
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Journal Title
Physics of the Earth and Planetary Interiors
Volume: 227
Pages: 68-75
Related Report
Peer Reviewed
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[Journal Article] Thermal equation of state of majoritic knorringite and its significance for continental upper mantle2014
Author(s)
Dymshits, A.M., Litasov, K.D., Sharygin, I.S., Shatskiy, A., Ohtani, E., Suzuki, A., Funakoshi, K.-I.
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Journal Title
Journal of Geophysical Research B: Solid Earth
Volume: 119
Pages: 8034-8046
Related Report
Peer Reviewed
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[Journal Article] High pressure study of transition metal monoxides MnO and CoO: Structure and electrical resistance2014
Author(s)
Ito, E., Yamazaki, D., Yoshino, T., Shan, S., Guo, X., Tsujimo, N., Kunimoto, T., Higo, Y., Funakoshi, K.-I.
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Journal Title
Physics of the Earth and Planetary Interiors
Volume: 228
Pages: 170-175
Related Report
Peer Reviewed
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[Journal Article] High-pressure phase transitions in FeCr2O4and structure analysis of new post-spinel FeCr2O4and Fe2Cr2O5phases with meteoritical and petrological implications2014
Author(s)
Ishii, T., Kojitani, H., Tsukamoto, S., Fujino, K., Mori, D., Inaguma, Y., Tsujino, N., Yoshino, T., Yamazaki, D., Higo, Y., Funakoshi, K.-I., Akaogi, M.
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Journal Title
American Mineralogist
Volume: 99
Pages: 1788-1797
Related Report
Peer Reviewed
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[Journal Article] Repulsive nature for hydrogen incorporation to Fe3C up to 14 GPa2014
Author(s)
Terasaki, H., Shibazaki, Y., Nishida, K., Tateyama, R., Takahashi, S., Ishii, M., Shimoyama, Y., Ohtani, E., Funakoshi, K.-I., Higo, Y.
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Journal Title
ISIJ International
Volume: 54
Pages: 2637-2642
NAID
Related Report
Peer Reviewed
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[Journal Article] Over 1Mbar generation in the Kawai-type multianvil apparatus and its application to compression of (Mg0.92Fe0.08)SiO3 perovskite and stishovite2014
Author(s)
Yamazaki, D., Ito, E., Yoshino, T., Tsujino, N., Yoneda, A., Guo, X., Xu, F., Higo, Y., Funakoshi, K.-I.
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Journal Title
Physics of the Earth and Planetary Interiors
Volume: 228
Pages: 262-267
Related Report
Peer Reviewed
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[Journal Article] High-pressure and high-temperature phase diagram for Fe0.9Ni0.1-H alloy2014
Author(s)
Shibazaki, Y., Terasaki, H., Ohtani, E., Tateyama, R., Nishida, K., Funakoshi, K.-I., Higo, Y.
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Journal Title
Physics of the Earth and Planetary Interiors
Volume: 228
Pages: 192-201
Related Report
Peer Reviewed
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[Journal Article] Sound velocity measurements in liquid Fe-S at high pressure: Implications for Earth's and lunar cores2013
Author(s)
Nishida, K., Kono, Y., Terasaki, H., Takahashi, S., Ishii, M., Shimoyama, Y., Higo, Y., Funakoshi, K.-I., Irifune, T., Ohtani, E.
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Journal Title
Earth and Planetary Science Letters
Volume: 362
Pages: 182-186
Related Report
Peer Reviewed
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[Journal Article] Equation of state of γ-Fe: Reference density for planetary cores2013
Author(s)
Tsujino, N., Nishihara, Y., Nakajima, Y., Takahashi, E., Funakoshi, K.-I., Higo, Y.
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Journal Title
Earth and Planetary Science Letters
Volume: 375
Pages: 244-253
Related Report
Peer Reviewed
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[Journal Article] Static disorders of atoms and experimental determination of Debye temperature in pyrope: Low- and high-temperature single-crystal X-ray diffraction study-Reply2013
Author(s)
Nakatsuka, A., Shimokawa, M., Nakayama, N., Ohtaka, O., Arima, H., Okube, M., and Yoshiasa, A.
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Journal Title
American Mineralogist
Volume: 98
Pages: 783-784
Related Report
Peer Reviewed
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