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In-Line Phase-Contrast X-ray Imaging and Tomography for Materials Science.

Sheridan C Mayo1, Andrew W Stevenson2, Stephen W Wilkins3

  • 1CSIRO Materials Science and Engineering, Private Bag 33, Clayton, VIC 3169, Australia. sherry.mayo@csiro.au.

Materials (Basel, Switzerland)
|August 18, 2017
PubMed
Summary

X-ray phase-contrast imaging and tomography reveal sample details beyond absorption contrast. This technique enhances materials science characterization, especially for low-density materials and internal structures.

Keywords:
X-ray imagingX-ray microscopymicro-tomographyphase-contrastradiography

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Area of Science:

  • Materials Science
  • Imaging Physics

Background:

  • Conventional X-ray imaging relies on absorption, limiting detail in low-density materials.
  • X-ray phase-contrast imaging utilizes X-ray refraction for enhanced image information.
  • Phase contrast complements absorption contrast by highlighting edges and internal boundaries.

Purpose of the Study:

  • To review the applications of X-ray phase-contrast imaging and tomography in materials science.
  • To demonstrate the benefits of phase-contrast techniques using synchrotron and laboratory sources.
  • To highlight the advantages of phase contrast for laboratory-based materials characterization.

Main Methods:

  • Review of existing literature and case studies on X-ray phase-contrast imaging and tomography.
  • Application of phase-contrast techniques to various materials science problems.
  • Utilized both synchrotron and laboratory X-ray sources.

Main Results:

  • Phase-contrast imaging provides significant additional information compared to absorption-based methods.
  • Effective for characterizing low-density materials, detecting cracks/voids, and analyzing composites.
  • Demonstrated particular benefits in laboratory settings.

Conclusions:

  • X-ray phase-contrast imaging and tomography are powerful tools for materials science.
  • These techniques offer complementary information to absorption contrast, improving material characterization.
  • Phase contrast is especially valuable for analyzing complex materials and defects.