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- เผยแพร่เมื่อ 14 ต.ค. 2024
- Reference paper:
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In this video, I have shown the method for the calculation of crystallite (grain) size from XRD using the Scherrer equation. For more videos, Please subscribe to NanoWorld. If you have any questions, feel free to ask me in the comment section below.
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Very good sir 👍
Nice effort
I was using origion+Excel but followed long procedure , you made a good effort and short path to find FWHM and average crystallite size
I appreciate you
How to decide the y-scale when selecting the peaks? If I try different heights of the peaks while selecting them, the value turns out different.
Thank you. Your video helped me prove D value in today’s mid term exam. It was 30 marks.
All the best
Thank you so much.
A simple question, what are the parameters used for the fitting until converged. I got the COD(R^2) less than 0.5 and the fitting graph is so far of the beaks.
I hope you all the best thank you.
Thank you for good video. But, I have a wondering that about your data that you had used.
Is it raw data or normalised data??
If it were normalized, then I want to know what was the normallization process.
Please tell me...
When you collected peak position and FWHM values either it's 5 peaks on same plot, or same should be conducted for 5 samples separately?? Or 5/8 peaks from the single peak of any sample would be enough?
Hi NanoWorld,
I have question about size of material in video,
I calculate size of material using Scherrer equation same in video but why
1/ My result after calculate in excel (the raw material has lower size than the material after treatment with H2SO4)- in my experiments H2SO4 will reduce size of material.
I hope I would receive your answer soon.
Thanks NanoWorld so much.
Thank you very much for the helpful tutorial. May I know if we can consider this size as the nanocrystals size of our structure? In fact is there a difference between the crystallite size and particle size?
sure, you could call this one domain size, which would be better differntiated from the particle size in terms of names.
Really nice, one small suggestion if u take this tutorial along with a clear oral explanation of yours it wil be more effective. Congratulations for such upcoming videos... Good luck👍
Hello, for FWHM the peak 2 I always get 2. something in comparison with other peaks. I must say, in the graph the second peak is very close to the first one that the connection does not touch the base line.
How do I do the same in origin 6? There is no Peak and Baseline option available
You are fitting a Gauss for a Lorentzian function?
Your video was helpful to calculate the crystalline size. Thank You.
Which method among DSC and XRD do you think would be more accurate for % crystallinity estimates and why?
Do you think crystallinity depends on the crystal size?
please explain a bit of detail. I have just begun studying, thnks
No, crystallinity depends upon the intensity of the peaks and the lower the noises in the graph
Thank you so much. Excellent video, easy to follow and well-explained.
Which software?
For converting angle theta to radian while determining the crystallite size from powder xrd spectrum why we are taking half circumference not full
in data 2theta value is given so we need the value of theta so we divide the value of 2theta with 2, to get the value of theta so that we can put value of theta in scherrer formula
Written in a very detailed! Thank you so much!!
Hi.. thank you for the knowledge you've been sharing with us. Please I couldn't analyse my xrd data using Origin. The graph doesn’t converge. It shows that mutual dependency exists between parameters. What is the solution please?
I Had the same issue, when i zoomed the peaks and aligned the peak fit to the narrow line of the peak after some trials my graph converged.
Helpful video.... thank you sir
Your video is so helpful, I really want to appreciate your efforts...thanks alot.....
Glad to hear that
Sir this video is very useful.
I prepared my sample by synthesis a zinc oxide nanoparticle but when I put my result in xpert highscore it shows copper and silicon oxide
is there a way to do this in an exam without using software? just estimate the particle size from the PXRD pattern? i have been given this as a past paper question
Thank you for sharing, this really helpful, Respect !!
Glad it was helpful!
Thank you for making such a great work,
I'm not getting precise Values of crystal size , they differ very large from each other so average is very much different, please guide 🙏🙏🙏
I am very happy when i watch the video 😁
Why do we need to theta to convert in radian?
Because the values of FWHM are defined in radians so we need to convert the values of 2theta from degrees to radians.
And also the mathematical relationships involved in diffraction theory are inherently based on trigonometric functions that use radians as their unit of measurement.
bro can you explain sin2psi technique for residual stress calculation of metal
Please help
I cannot designate the vertices for each pik with a straight line. Whenever I designate a peak, it reads the values of x and y, but it does not draw a pik.
Thank you! Excellent Video!! I only have some doubts. In my X-ray diffraction pattern appear 2 different TiO2 phases (anatse and rutile), 1.- Can I use this method if I want to measure just the anatase peaks? 2.- Do the rutile peaks affects this measurements?. 3.- Would it be valid if I select anatase and rutile peaks and calculate an average crystallite size for both phases?. Regards!!
I found myself in a similar position but for an ferrous alloy lol. What did u do?
what should be the unit of the calculated crystallite size? i think its not nm,it should be Angstrom
Which software you used
excuse me, shouldn't FWHM be in 2Theta units too?
Thank you so much... Made my day
I have a question in the Scherrer equation the value of theta, Is not necessary divide for two? Thank you for your good video.
It is essential, you must divide it by 2.
Its soo helpful for my exam preparation
Glad to hear that
So informative! Thanks a lot!
How to identify /remove FTO peaks from spectra, plz help
Can you please show the strain and crystallite size from Williamson hall methods for uniform deformation model?
Thanks.
Thankyou, for this great video, this so help me a lot ☀ thxx
You’re welcome 😊
@@nanoworld6122 thankyou again, because i can pass my exam last week 😄😝
thank you sir....excellent explanation...for beginers
Thank you so much sir, its very helpful. Thanks a lot
thank you so much for your really well-explained video @@@!!!
Glad it was helpful!
Thank you very much, Really It was very well explained, With image and music
Very much beneficial
Sir please tell me that which method is best for finding crystalline size modified scherrer or W-H plot.
W-H plot is the best method
@@nanoworld6122 why?
Thank you very much for this... I have a question: when you select the peaks, i noticed that the y value is changing depending on where you click on the graph (the y value doesn't correspond to the x value in the curve)...do we need to make sure we click on the correct y value on the graph? or do we just care about the peak position(x value?)
Thank you so much, it's really helpful!
thank you so much for your really well explained video.
how can we calculate the errors in crystallite sizes , from FWHM errors?
Thank you so much, its very helpful. Thanks alot
Sir how can we measure the phase present in the NaOH treated natural fiber?? Or how can we analyse the natural fiber?
Very helpful video Sir
I followed the same method but I am not getting multiple peak values .
I am getting only one FWHM value.
Please answer me
Your data might need a baseline correction. But I'm not sure yet, because I have not seen it yet.
If you want me to have a look over your data, then send it to me at
thenanoworld.com/contact-us/
谢谢，非常有用！
Can you upload videos on XPS spectra , nanowire I-V characterization etc.
for your reference you can refer th-cam.com/video/a0m0zcE5k6U/w-d-xo.html
how u are selecting c[y] and A[X].
Keep pressing the control button in your keyboard
Thank you do much great work
You are very welcome
Very useful one sir. thank you
theta can be put either in degrees or radians. It does not make difference provided you find the cos theta accordingly.
Very informative!! Can you please show the Rietveld refinement for calculation of atomic occupancy?
Thanks.
thank you my friend
can you show how langevin fit done in origin using VSM data
hi.. can you help me in XRD analysis
thank you sir....excellent explanation...
Very nicely explained👍
Thanks for liking
Habibi...classic job
Thank you very much👏
i have poject witch i should use this logicial can you help me how i used for the begining how i importe cif file and how i used XRD please
Hey, thank you verry much
How to find the corresponding value of y axix acrroding to peak position i.e x value?
真的很有用，特别是对于新手来说。
谢谢
thank you so much, it was very helpful. can you plz upload videos about DSC.
Crystallite size measured by strain and measured directly from data is different.why?
Thanks for uploading this video, it was very useful. Question, does the thickness of the thin film affect the intensity of the XRD spectrum ?
10:42, why are you dividing by 2 in the formula?
Because it 2theta and i need theta only.
fantastic man...hatsoff u...
Thank You so much
Very good. Super easy to reproduce. Thank you.
Glad it helped!
thank u so much for such a helpful video.
My pleasure 😊
Excellent video...
I wanted to request the help to estimate the size of the TiO2 crystallite according to my XRD analysis. I have a problem, in the software of origin that I have installed, the commands do not appear.
download the latest version of the software, i hope this will help you.
How to select Multiple peaks ?
Thank you for your very helping video. Would you mind filming how to draw W-H plot?
th-cam.com/video/ChmM3OHgcvg/w-d-xo.html
Can you plz tell me how to get the JCPDS file for a material.
Send me an email, and tell me your required card no. like 01-023-0456 etc..
What to do if the fit did not converge.maximum iteration of 400 reached
I tried many times I am getting the same msg
2θ β(2θ) β(θ) β(radian) θ(degree) θ(radian) D=.9λ/βcosθ
=B2/2 =(C2*3.14)/180 =A2/2 =(E2*3.14)/180 =0.138654/(D2*COS(F2))
Is formula k according apki readings 57.63126 aa ri hain. Her bar change hon ge reaidngs formula change krnny sy??? Reply zroor kijye ga.
Yes, If one value is changed then every value will changed.
(I see an error in your formula, you should NOT divide beta by 2)
@@nanoworld6122 Ok let me check again. Then I will tell you.
Just this is my mistake?
Yeah, I got 28. Thank u. Will u describe the reason why beta should not divide by 2?
@@naziaaslam916 The sin theta represents the actual location (position) of the reflection (peaks), that's why we divide it by 2. While the broadness (FWHM ) of the peaks has nothing to do with the actual scale.
appreciate your work. really helpful :)
Thank you
Thankyou very much :)
Welcome!
I think your result is in angstrom. You need to convert that to nanometer. Correct me If I'm wrong.
PLEASE EXPLAIN ALL TYPE OF ERROR IN XRD
great job sir
hello Muhammad saqib? hope youll be fine, dear i have one thing to discus do you know how to calculate the miller indices through any way?
Which crystal you used?
ZnO
Thank you so much, very useful ==> Great Job (y)
can you give the scientific interpretation of this graph ??
thanks a lot
EXCELLANT👍👍👍
thank you
Welcome!
It would be better to add voice for explanation
Please anyone help me out after 3:43 minute's how you all are getting next options
Please help me am using origin 8 pro
Or is any videos please send
Thank you