Shock-driven amorphization and melting in Fe2O3
We present measurements on Fe<sub>2</sub>O<sub>3</sub> amorphization and melt under laser-driven shock compression up to 209(10) GPa via time-resolved <em>in situ</em> x-ray diffraction. At 122(3) GPa, a diffuse signal is observed indicating the presence of a nonc...
| Glavni autori: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Jezik: | English |
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American Physical Society
2025
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| _version_ | 1826317497197920256 |
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| author | Crepisson, C Amouretti, A Harmand, M Sanloup, C Heighway, P Azadi, S McGonegle, D Campbell, T Pintor, J Chin, DA Smith, E Hansen, L Forte, A Gawne, T Lee, HJ Nagler, B Shi, Y Fiquet, G Guyot, F Mikako, M Bennuzi-Mounaix, A Vinci, T Miyanishi, K Ozaki, N Pikuz, T Nakamura, H Sueda, K Yabuushi, T Yabashi, M Wark, JS Polsin, DN Vinko, SM |
| author_facet | Crepisson, C Amouretti, A Harmand, M Sanloup, C Heighway, P Azadi, S McGonegle, D Campbell, T Pintor, J Chin, DA Smith, E Hansen, L Forte, A Gawne, T Lee, HJ Nagler, B Shi, Y Fiquet, G Guyot, F Mikako, M Bennuzi-Mounaix, A Vinci, T Miyanishi, K Ozaki, N Pikuz, T Nakamura, H Sueda, K Yabuushi, T Yabashi, M Wark, JS Polsin, DN Vinko, SM |
| author_sort | Crepisson, C |
| collection | OXFORD |
| description | We present measurements on Fe<sub>2</sub>O<sub>3</sub> amorphization and melt under laser-driven shock compression up to 209(10) GPa via time-resolved <em>in situ</em> x-ray diffraction. At 122(3) GPa, a diffuse signal is observed indicating the presence of a noncrystalline phase. Structure factors have been extracted up to 182(6) GPa showing the presence of two well-defined peaks. A rapid change in the intensity ratio of the two peaks is identified between 145(12) and 151(12) GPa, indicative of a phase change. The noncrystalline diffuse scattering is consistent with shock amorphization of Fe<sub>2</sub>O<sub>3</sub> between 122(3) and 145(12) GPa, followed by an amorphous-to-liquid transition above 151(12) GPa. Upon release, a noncrystalline phase is observed alongside crystalline α-Fe<sub>2</sub>O<sub>3</sub>. The extracted structure factor and pair distribution function of this release phase resemble those reported for Fe<sub>2</sub>O<sub>3</sub> melt at ambient pressure. |
| first_indexed | 2025-02-19T04:39:14Z |
| format | Journal article |
| id | oxford-uuid:3c9f4ffa-93b0-40c3-b9f6-27a32e6ac69c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2025-02-19T04:39:14Z |
| publishDate | 2025 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:3c9f4ffa-93b0-40c3-b9f6-27a32e6ac69c2025-02-18T10:24:41ZShock-driven amorphization and melting in Fe2O3Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3c9f4ffa-93b0-40c3-b9f6-27a32e6ac69cEnglishSymplectic ElementsAmerican Physical Society2025Crepisson, CAmouretti, AHarmand, MSanloup, CHeighway, PAzadi, SMcGonegle, DCampbell, TPintor, JChin, DASmith, EHansen, LForte, AGawne, TLee, HJNagler, BShi, YFiquet, GGuyot, FMikako, MBennuzi-Mounaix, AVinci, TMiyanishi, KOzaki, NPikuz, TNakamura, HSueda, KYabuushi, TYabashi, MWark, JSPolsin, DNVinko, SMWe present measurements on Fe<sub>2</sub>O<sub>3</sub> amorphization and melt under laser-driven shock compression up to 209(10) GPa via time-resolved <em>in situ</em> x-ray diffraction. At 122(3) GPa, a diffuse signal is observed indicating the presence of a noncrystalline phase. Structure factors have been extracted up to 182(6) GPa showing the presence of two well-defined peaks. A rapid change in the intensity ratio of the two peaks is identified between 145(12) and 151(12) GPa, indicative of a phase change. The noncrystalline diffuse scattering is consistent with shock amorphization of Fe<sub>2</sub>O<sub>3</sub> between 122(3) and 145(12) GPa, followed by an amorphous-to-liquid transition above 151(12) GPa. Upon release, a noncrystalline phase is observed alongside crystalline α-Fe<sub>2</sub>O<sub>3</sub>. The extracted structure factor and pair distribution function of this release phase resemble those reported for Fe<sub>2</sub>O<sub>3</sub> melt at ambient pressure. |
| spellingShingle | Crepisson, C Amouretti, A Harmand, M Sanloup, C Heighway, P Azadi, S McGonegle, D Campbell, T Pintor, J Chin, DA Smith, E Hansen, L Forte, A Gawne, T Lee, HJ Nagler, B Shi, Y Fiquet, G Guyot, F Mikako, M Bennuzi-Mounaix, A Vinci, T Miyanishi, K Ozaki, N Pikuz, T Nakamura, H Sueda, K Yabuushi, T Yabashi, M Wark, JS Polsin, DN Vinko, SM Shock-driven amorphization and melting in Fe2O3 |
| title | Shock-driven amorphization and melting in Fe2O3 |
| title_full | Shock-driven amorphization and melting in Fe2O3 |
| title_fullStr | Shock-driven amorphization and melting in Fe2O3 |
| title_full_unstemmed | Shock-driven amorphization and melting in Fe2O3 |
| title_short | Shock-driven amorphization and melting in Fe2O3 |
| title_sort | shock driven amorphization and melting in fe2o3 |
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