INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

clay X-ray Diffraction data XRD.

clay X-ray Diffraction data XRD.

(OP)
HI

I'm trying to analyse some clay material to determine it's mineralogy by XRD. Hopefully to quanitfy each constituent also. The material has been in our labs ofr a few years but I ran it through the XRD machine at our uni. I emailed the supplier and they've sent me XRD data they have for the same material though the test was undertaken last year so it will probably be on a different batch of material. Please see the attached scans of my data (background removed, bottom) and the manufacturer's (top). I'm just curious as to why, although they both exhibit the same general peaks, they're in different locations with regard to 2theta. Could this be because the x-ray source used by them was cobalt and I used copper? Could a different wavelength of x-ray source cause this? The manufacturer has also provided quantitative data of each constituent. Anyone with a learned eye looking at these two scans, do you think the composition of each constituent is similar for both materials?
Thanks
http://res.cloudinary.com/engineering-com/image/upload/v1445606645/tips/forum_pic_ep5dhk.bmp

RE: clay X-ray Diffraction data XRD.

The patterns are pretty similar, as such the phase struction seems very similar. peak loccations, 2 theta, are determnoined by the wavelength of target. since Co has a bigger WL than Cu (1.79 vs 1.54), XRD pattern using Co target will shift to higher angles. also the distances of peak-to-peak will be increased for Co target.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close