hi, i have one peak in my spectra doesn't match with any highscore data base, all other peaks are well identified; please would you mind helping me to fix and therefor identify that peak. thanks in advance
Dear Sellam Mohamed ,
you may
a) share your XRD pattern ,
but at least share at what 2theta value your peak shows up (and wavelength in use), and
b) please share a bit about your sample system, e.g. what kind of material, sample preparation (if it is not confidential), estimated sample thickness, material of sample support, etc.
I assume, that your peak arises from your sample support or from any impurity phase of your sample.
But without any further informations it is just a pure guessing game....
I agree with doctor Gerhard Martens
- there are not sufficient information about the study samples that can permit help you.
There can be many causes for the appearance of the unknown peak: sample support, impurity phase, oxidation, precipitation of pure elements, ...
you'll find the attached file below my spectra whichis about an iron-nickel powder produced by mechanical alloying method. thank you
Dear Sellam Mohamed ,
thanks for feedback.
But, please, what is about a real plot of your pattern with an indication which peak is not identified.
Sorry, but I have got no software to plot your data.
Nevertheless from you data one can see, that you have got a quite large background. This is due to Fe fluorescence of your sample, excited by Cu K-radiation. You should use a Co (Cobalt) based x-ray tube to avoid Fe fluorescence background.
It seems to be within the background - take in account that may be a sample with an amorphous part
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