Calculate Dislocation from Williamson-Hall Plot

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murphyberger
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I would like to calculate the dislocation from the WH plot. I have HRXRD mesurement results with (004),(111) and (115) for omega and omega-2theta. Please someone guide me how to do?
 

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The williamson hall plot is rather simple to do.

Simply plot the FWHM of your rocking curves vs Tan^2(\theta)

Where theta is your bragg angle.




You are also going to have to subtract out some of the information that is burried with in the FWHM. This includes:Instrument broadening,Intrinsic FWHM, Sample Curvature broadening,etc.
 

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