Is the X Ray Line Profile Analysis use to Calculate Stacking Fault Energy of Aluminium alloys valid for foil type sample?

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Ravi Ananth

"X Ray Line Profile Analysis use to Calculate Stacking Fault Energy", very interested in this line of thought. Please post references when convenient.
"Aluminium alloys valid for foil type sample", would invariably include significant effects due to "preferred orientation" that would reduce the effectiveness of conventional equatorial scan line profile analyses.

https://www.flickr.com/photos/85210325@N04/7944785794/in/album-72157632728981912/

Lawrence Margulies

Preferred orientation will have no effect of line broadening from stacking faults. Zero. None. Nill.

How come, Lawrence ?

I'd think,

"Preferred Orientation" would inherently skew any convention equatorial scan diffractogram, typically used in "X Ray Line Profile Analysis".

How do the stacking fault affect the Bragg profile? Below the FWHM? Sort of like this? https://www.flickr.com/photos/85210325@N04/24151817359/in/datetaken/

I'm seeking some reference literature on this matter as well.

Thanks for your help.

https://www.researchgate.net/post/Is_it_possible_to_determine_the_type_morphology_of_defects_in_single_crystals_by_the_shape_of_the_Bragg_XRD_Rocking_Curve_Profile

Preferred orientation has no effect on a peak shift. It also has no effect on FWHM. The only effect is on relative intensity.

How do stacking fault affect the Bragg profile?

Here is a possible reference:

https://books.google.com/books?id=_jhG2ofbb-UC&pg=PA381&lpg=PA381&dq=effect+of+stacking+fault+on+bragg+profile&source=bl&ots=L-9oPV3c31&sig=aEmQfiEMIbrX6JMvmKzbSqsME8k&hl=en&sa=X&ved=0ahUKEwj2saii19_KAhXHqx4KHZPHB2MQ6AEILDAC#v=onepage&q&f=false

"Can this be done for bulk sample (in form if thin foil)"

How do you propose to turn the "bulk sample" into "thin foil"? Squeeze (roll) or shave?

Foils are normally produced by rolling, and they usually are not nanostructured materials. Stacking faults have a well know relation to Bragg peaks and can be modeled using structural refinement approaches.