I have taken EDX of a ceramic compound and It has shown all the expected elements along with different weight and atom percentage. But in XRD data of the same compound, all the elements have not been observed in a crystal. How I can sure which compound is developed?
Dear Satyaranjan Bairagi ,
There is not a specific relation between XRD and EDS patterns, because XRD detects the crystalline phases, but EDS shows only the elements. I mean EDS is a chemical analysis but XRD is a phase analysis. In general, EDS cannot detect light elements such as B or C precisely. Meanwhile, low content phases may not be detectable by XRD when their percentage is less than 8. Additionally, you are only able to identify the crystalline phases (compounds or elements) by XRD test. I mean, if a phase is in its amorphous state, it cannot be detected by XRD, whereas its chemical composition is easily detectable by EDS.
Hallo Satyaranjan,
EDX and XRD are quite different methods.
EDX is an inelastic interaction which allows to detect the chemical composition. XRD is an elastic interaction and allows to determine the crystal structure.
Let me give an example:
Salt consists of Na and CL (easy to detect with EDX). The structure of salt is a cube - this follows from XRD reflexes. So you have a full set of information concerning chemical and crystalline structure.
With Regard
R. Mitdank
Dear Satyaranjan Bairagi ,
There is not a specific relation between XRD and EDS patterns, because XRD detects the crystalline phases, but EDS shows only the elements. I mean EDS is a chemical analysis but XRD is a phase analysis. In general, EDS cannot detect light elements such as B or C precisely. Meanwhile, low content phases may not be detectable by XRD when their percentage is less than 8. Additionally, you are only able to identify the crystalline phases (compounds or elements) by XRD test. I mean, if a phase is in its amorphous state, it cannot be detected by XRD, whereas its chemical composition is easily detectable by EDS.
https://www.diva-portal.org/smash/get/diva2:20022/FULLTEXT01.pdf
good thesis
best regarde
You are welcome. If you attach the taken patterns and some info about your ceramic, I may help you better. Good luck.
Greetings,
Those are completely different method,
Xrays deals with cryitalline phases, While EDX deals with the elements
( detect what kind of elements in your sample) ..
If you did these tests you can compare it with the original to know that you are on the right track or to compare the final product in EDX to know that all the element you want in this sample,
Best regards,
Sara
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