How can I find out the d-spacing in alloy and composition of the materials? Is there any software available?
Start with http://www.doitpoms.ac.uk/tlplib/diffraction-patterns/index.php
Do you have a standard material in your TEM for SAD analysis, like pure Al or Au film? If yes, I'll explain in my next comment. It's easy.
Dear Naresh, in this link to Dr. Jun Jiao's lecture notes, you can also find very interesting information for indexing SAD patterns:
http://www.web.pdx.edu/~jiaoj/teach.php
Hi, all software I found online was either unnecessarily complicated or too expensive (or both). So I decided to make my own:
https://www.odpin.com.
It's 100% non-commercialized, e.g. no ads, no registration, no collecting of user data. It's loosely based on something I wrote during my PhD to help me with the task of indexing diffraction patterns made with SAED.
What Odpin does is that it takes the crystal structure of your specimen and the geometry of your diffraction pattern as input and then calculates a list of possible combinations of (hkl) planes which fit to the geometry of your pattern with a deviation of less than 3%. You can then filter by selection rules, e.g. fcc, bcc and so on.
Maybe someone finds it useful :) Feedback welcome!
Timo
Hi, Naresh.
Please refer to my paper. It gives you enough information to analyze SAED patterns. Specifically check the supplementary information for detailed calculations.
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