在GPa压力和高温下旋转Paris-Edinburgh细胞中两相聚集体的原位x射线断层扫描变形。

IF 2.4 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION

Journal of Synchrotron Radiation Pub Date : 2023-09-01 DOI:10.1107/S1600577523005374

Tommaso Mandolini, Julien Chantel, Sébastien Merkel, Yann Le Godec, Nicolas Guignot, Andrew King, Jerome Hosdez, Laura Henry, Nadège Hilairet

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引用次数: 0

摘要

高压(>1 GPa)扭转装置可以与原位x射线断层扫描(XRT)相结合，研究与大剪切应变相关的材料的微观结构。在这里，在~ 3-5 GPa和~ 300-500°C的多相聚集体上进行变形实验，使用旋转层析成像巴黎-爱丁堡出版社(RoToPEc)在同步加速器SOLEIL的PSICHE光束线上进行原位吸收对比XRT。样品的实际剪切应变与砧扭角度有关，在砧扭90°时达到γ≤1，在砧扭225°时达到γ≃5。探索了基于XRT的二维和三维定量方法，可用于原位研究两相聚集体在高剪切应变下的变形微组构。概述了目前使用同步加速器XRT与RoToPEc耦合进行变形微观结构实时研究的局限性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Deformation of two-phase aggregates with in situ X-ray tomography in rotating Paris-Edinburgh cell at GPa pressures and high temperature.

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Deformation of two-phase aggregates with in situ X-ray tomography in rotating Paris-Edinburgh cell at GPa pressures and high temperature.

The use of a high-pressure torsion apparatus to deform multi-phase aggregates under high shear strain is explored, and in situ X-ray tomography data at high pressure and high temperature are collected. Step-by-step procedures on strain measurements and image processing are outlined, and results on the studied materials are presented in 2D and 3D.

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来源期刊

Journal of Synchrotron Radiation 物理-光学

CiteScore

5.10

自引率

12.00%

发文量

289

审稿时长

4-8 weeks

期刊介绍： Synchrotron radiation research is rapidly expanding with many new sources of radiation being created globally. Synchrotron radiation plays a leading role in pure science and in emerging technologies. The Journal of Synchrotron Radiation provides comprehensive coverage of the entire field of synchrotron radiation and free-electron laser research including instrumentation, theory, computing and scientific applications in areas such as biology, nanoscience and materials science. Rapid publication ensures an up-to-date information resource for scientists and engineers in the field.