you obviously have two componants. a crystalline part and an amorphous part, probably the supportfilm. You can start measuring the distance of the spots to the center. Do that in pairs through the center and divide by two. Do you have a calibration of the camera length?
It will give you the inverse d spacing. You can then compare with a reference for the phases.
Continue with finding the symmetry in the patterns, there are more than one.
Start with a line through a pair of spots and displace it for a full pattern.
then continue with a remaining set of pairs and repeat the procedure.
The identification from the d spacings will help you.
If nessesary support the symmetry with darkfield imaging, if in doubt
good luck!
Do you have .dm3 file ?
the length scale is required to analyze the film
this video will give you a general idea of the interpretation process
https://youtu.be/XLca_Hy2GMo
Dear Flemming B. Grumsen
thank you,your answer is helpful, but I dont have calibration of the camera length.
Dear Karthick Kandhasamy
Thank you for your reply. Unfortunately, I don't have the long skill. how can i get it
To get the CL calibration, you can use a sample with a known d spacing. An oriented gold specimen is normally used. Your TEM tecnician may have one. Aquire a pattern at the same camera length
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials
- Inorganic Materials
- Metals
- Alloys
- Steel