X-ray diffraction study of phase transformation dynamics of Fe and Fe-Si alloys along the shock Hugoniot using an x-ray free electron laser

被引：2

作者：

Krygier, A. ^{[1
,2
]}

Harmand, M. ^{[1
]}

Albertazzi, B. ^{[3
]}

McBride, E. E. ^{[4
,5
]}

Miyanishi, K. ^{[6
,7
]}

Antonangeli, D. ^{[1
]}

Inubushi, Y. ^{[7
,8
]}

Kodama, R. ^{[6
,9
]}

Keoning, M. ^{[3
,9
]}

Mogni, G. ^{[1
]}

Matsuoka, T. ^{[10
]}

Pietrucci, F. ^{[1
]}

Saitta, A. M. ^{[1
]}

Togashi, T. ^{[7
,8
]}

Umeda, Y. ^{[9
,11
]}

Vinci, T. ^{[3
]}

Yabashi, M. ^{[7
,8
]}

Yabuuchi, T. ^{[7
,8
]}

Fiquet, G. ^{[1
]}

Ozaki, N. ^{[6
,9
]}

机构：

[1] Sorbonne Univ, Museum Natl Hist Nat, UMR CNRS 7590, Inst Mineral Phys Mat & Cosmochim IMPMC, F-75005 Paris, France

[2] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA

[3] Sorbonne Univ, LULI, CNRS, CEA,Ecole Polytech,Inst Polytech Paris, F-91120 Palaiseau, France

[4] European XFEL GmbH, Holzkoppel 4, D-22869 Schenefeld, Germany

[5] SLAC Natl Accelerator Lab, 2575 Sand Hill Rd,MS 19, Menlo Pk, CA 94025 USA

[6] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

[7] RIKEN Spring 8 Ctr, Sayo, Hyogo 6795148, Japan

[8] Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795198, Japan

[9] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

[10] Osaka Univ, Open & Transdisciplinary Res Initiat, Suita, Osaka 5650871, Japan

[11] Kyoto Univ, Inst Integrated Radiat & Nucl Sci, Osaka 5900494, Japan

来源：

PHYSICAL REVIEW B | 2022年 / 105卷 / 22期

基金：

欧洲研究理事会;

关键词：

EQUATION-OF-STATE; INNER-CORE; IRON; ANISOTROPY; WAVE; CONSTRAINTS; TRANSITION; PRESSURES; DIAGRAM;

D O I：

10.1103/PhysRevB.105.L220102

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The x-ray free electron laser (XFEL) enables probing a highly compressed material response at the subnanosecond timescale. We exploit the ultrafast XFEL pulse to combine reflection x-ray diffraction and laser-driven shock compression to perform a study of the phase transformation and stability in Fe and Fe-Si alloys. Our approach enables us to observe that solid-solid phase transformations occur in Fe and Fe-Si-8.5 wt % in <= 130 ps at similar to 130 GPa; no transformation is observed in Fe-Si-16 wt % up to 110 GPa. Density functional theory calculations predict similar phase relations.

引用

页数：7

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