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PhysicsMaterials Science

Dislocation Density from FWHM: XRD Rocking-Curve Formula Review

HRXRD rocking curves can support model-dependent dislocation estimates when scan geometry, instrumental broadening, angular units, and Burgers vectors are specified.

Question

How can one determine dislocation density by HRXRD rocking curve?

Measurement of dislocation density by HRXRD rocking curve

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Evidence boundary

The source is Kk Maurya’s 7 December 2015 method question, including its short body. It supplies no material, reflection, measured widths, or Burgers vector, so no sample density can be calculated. The nitride-film formula is a conditional example, not a universal HRXRD conversion or a measurement of the questioner’s specimen.