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Electronic properties and compressional behavior of Fe–Si alloys at high pressure
https://repo.qst.go.jp/records/49310
https://repo.qst.go.jp/records/493102d3365ab-9f80-4e92-b3ec-31c9b9fd54ae
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-03-01 | |||||
タイトル | ||||||
タイトル | Electronic properties and compressional behavior of Fe–Si alloys at high pressure | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Seiji, Kamada
× Seiji, Kamada× Nanami, Suzuki× Fumiya, Maeda× Naohisa, Hirao× Maki, Hamada× Eiji, Ohtani× Ryo, Masuda× Mitsui, Takaya× Yasuo, Ohishi× Nakano, Satoshi× 三井 隆也 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Planetary cores are composed mainly of Fe with minor elements such as Ni, Si, O, and S. The physical properties of Fe alloys depend on their composition. Changes in c/a ratio, center shifts, and elastic properties of Fe and Fe–Ni alloys were reported previously. However, such properties of Fe light-element alloys have not yet been extensively studied. Si is a plausible candidate as a light element in planetary cores. Therefore, we studied the electronic properties and compressional behavior of Fe-Si alloys with a hexagonal-close-packed (hcp) structure under high pressure using synchrotron Mössbauer spectroscopy (SMS) and X-ray diffraction (XRD). Center shifts (CS) were observed at pressures of 21.4–45.3 GPa for Fe-2.8wt%Si and of 30.9–62.2 GPa for Fe-6.1wt%Si. Some of SMS and XRD measurements were performed under the same conditions using a newly developed system at the BL10XU beamline … | |||||
書誌情報 |
American Mineralogist: Journal of Earth and Planetary Materials 巻 103, p. 1959-1965, 発行日 2018-12 |
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DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.2138/am-2018-6425 |