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Defect analysis in crystals using x-ray topography

  • Stony Brook University

Research output: Contribution to journalReview articlepeer-review

49 Scopus citations

Abstract

A brief review of X-ray topography-a nondestructive method for direct observation and characterization of defects in single crystals-is presented here. The origin and development of this characterization method and the different techniques derived from it are described. Emphasis is placed on synchrotron X-ray topography and its application in studying various crystal imperfections. Mechanisms of contrast formation on X-ray topography are discussed, with emphasis on contrast associated with dislocations. Determination of Burgers vectors and line directions of dislocations from analysis of X-ray topographs is explained. Contrast from inclusions is illustrated, and their differentiation from dislocations is demonstrated with the aid of simulated topographs. Contrast arising from the deformation fields associated with cracks is also briefly covered.

Original languageEnglish
Pages (from-to)343-358
Number of pages16
JournalMicroscopy Research and Technique
Volume69
Issue number5
DOIs
StatePublished - May 2006

Keywords

  • Contrast
  • Direct dislocation image
  • Dislocations
  • Dynamical dislocation image
  • Precipitates/inclusions
  • Synchrotron X-ray topography
  • X-ray topography

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