Calculate Dislocation from Williamson-Hall Plot

[murphyberger]

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?

 

[sfarrel2]

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.