Ultrafast X-ray Diffraction Study of a Shock-Compressed Iron Meteorite above 100 GPa
| العنوان: | Ultrafast X-ray Diffraction Study of a Shock-Compressed Iron Meteorite above 100 GPa |
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| المؤلفون: | Roberto A. Colina-Ruiz, Hae Ja Lee, Sovanndara Hok, Wendy L. Mao, Kyle J. Ramos, Dylan R. Rittman, Sébastien Merkel, Richard Walroth, Akel Hashim, Eduardo Granados, Benjamin M. Morrow, Sabrina Tecklenburg, Cynthia Bolme, Bob Nagler, Arianna Gleason, Eric Galtier |
| المساهمون: | Université de Lille, CNRS, INRA, ENSCL, Stanford EARTH, Stanford Synchrotron Radiation Lightsource [SSRL SLAC], Los Alamos National Laboratory [LANL], Linac Coherent Light Source [LCLS], Unité Matériaux et Transformations - UMR 8207 [UMET], Stanford University, Stanford Synchrotron Radiation Lightsource (SSRL SLAC), SLAC National Accelerator Laboratory (SLAC), Stanford University-Stanford University, Los Alamos National Laboratory (LANL), Linac Coherent Light Source (LCLS), Unité Matériaux et Transformations - UMR 8207 (UMET), Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centrale Lille Institut (CLIL) |
| المصدر: | Minerals Volume 11 Issue 6 Minerals, 2021, 11 (6), pp.567. ⟨10.3390/min11060567⟩ Minerals, MDPI, 2021, 11 (6), pp.567. ⟨10.3390/min11060567⟩ Minerals, Vol 11, Iss 567, p 567 (2021) |
| بيانات النشر: | Multidisciplinary Digital Publishing Institute, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Materials science, 010504 meteorology & atmospheric sciences, Analytical chemistry, [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], Geology, iron meteorite, Mineralogy, 010502 geochemistry & geophysics, Geotechnical Engineering and Engineering Geology, 01 natural sciences, Iron meteorite, Shock (mechanics), [PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph], Kamacite, Crystal, Meteorite, Phase (matter), X-ray crystallography, Crystallite, ultrafast X-ray diffraction, laser shock compression, QE351-399.2, 0105 earth and related environmental sciences |
| الوصف: | Natural kamacite samples (Fe92.5Ni7.5) from a fragment of the Gibeon meteorite were studied as a proxy material for terrestrial cores to examine phase transition kinetics under shock compression for a range of different pressures up to 140 GPa. In situ time-resolved X-ray diffraction (XRD) data were collected of a body-centered cubic (bcc) kamacite section that transforms to the high-pressure hexagonal close-packed (hcp) phase with sub-nanosecond temporal resolution. The coarse-grained crystal of kamacite rapidly transformed to highly oriented crystallites of the hcp phase at maximum compression. The hcp phase persisted for as long as 9.5 ns following shock release. Comparing the c/a ratio with previous static and dynamic work on Fe and Fe-rich Fe-Ni alloys, it was found that some shots exhibit a larger than ideal c/a ratio, up to nearly 1.65. This work represents the first time-resolved laser shock compression structural study of a natural iron meteorite, relevant for understanding the dynamic material properties of metallic planetary bodies during impact events and Earth’s core elasticity. |
| وصف الملف: | application/pdf; application/octet-stream; application/rdf+xml; charset=utf-8 |
| اللغة: | English |
| تدمد: | 2075-163X |
| DOI: | 10.3390/min11060567 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91a798aa8de8fb670ab33ef4db3193f6 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....91a798aa8de8fb670ab33ef4db3193f6 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 2075163X |
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| DOI: | 10.3390/min11060567 |