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Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography

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Time-resolved x-ray stroboscopic phase tomography using Talbot interferometer for dynamic deformation measurements.

Yanlin Wu¹, Hidekazu Takano¹, Atsushi Momose¹

¹Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.

The Review of Scientific Instruments

|July 10, 2021

Summary

This summary is machine-generated.

This study demonstrates time-resolved X-ray stroboscopic phase tomography for visualizing the 3D structural changes in vibrating materials under fatigue loading. The technique captures plastic deformation in soft materials before fracture, offering new insights into material behavior.

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Area of Science:

Materials Science
Physics
Engineering

Background:

Time-resolved X-ray phase tomography visualizes 3D structural changes in light-element materials.
Talbot interferometry and white synchrotron radiation are key components for this visualization.

Purpose of the Study:

To demonstrate time-resolved X-ray stroboscopic phase tomography for vibrating objects.
To visualize 3D structural changes during fatigue loading (24 Hz compression-stretch).

Main Methods:

Utilized a Talbot interferometer with white synchrotron radiation.
Synchronized X-ray camera (200 µs exposure) with shutter, grating displacement, and sample rotation.
Reconstructed phase tomograms at specific vibration phases.

Main Results:

Successfully depicted 3D structural changes in a vibrating object under fatigue loading.
Observed changes in the delta (δ) value before material fracture.
Attributed observed changes to plastic deformation in soft materials.

Conclusions:

Time-resolved X-ray stroboscopic phase tomography is effective for dynamic 3D material analysis.
The method can reveal plastic deformation mechanisms in soft materials under vibration.
This technique provides valuable insights into material failure under cyclic stress.