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説明:

A diamond anvil cell (DAC) for high-pressure neutron diffraction experiments has been developed at the PLANET beamline, Materials and Life Science Experimental Facility, in J-PARC. The conically supported diamond anvils were used for high-pressure generation. We succeeded in obtaining the neutron data for D2O ice up to 69.4 GPa. In addition, the gasket materials suitable for the neutron diffraction measurements were investigated. 11 kinds of alloys were tested and SUS304, Inconel718 and M2052 (73Mn-20Cu-5Ni-2Fe, at%) alloys showed excellent performance. Especially, M2052 null-matrix alloy has proven to be useful for neutron diffraction experiments where the beam inevitably hits the gasket. We then obtained refinable neutron diffraction profiles in Rietveld analysis from D2O ice at least up to 43.3 GPa.

権利情報:

• In Copyright
  

キーワード: diamond anvil cell , high-pressure, neutron diffraction, gasket material, null-matrix alloy

刊行年月日: 2024-09-01

出版者: The Japan Society of High Pressure Science and Technology

掲載誌:

• The Review of High Pressure Science and Technology (ISSN: 0917639X) vol. 34 issue. 3 p. 134-142

研究助成金:

• 日本学術振興会 24K01445 (中性子実験により探る低温超高圧下の氷物質の構造物性)

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.4131/jshpreview.34.134

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更新時刻: 2025-04-02 12:30:14 +0900

MDRでの公開時刻: 2025-04-02 16:22:53 +0900