Xrd Definition and 58 Threads

  1. J

    XRD FWHM, debye-scherrer's formula & AFM surface morphology

    Hi guys, I have an question about the correlation between grain size caculated from debye-scherrer and the AFM results for my AlN epi layer samples. From my AFM results, the trend of grain size of three samples are getting smaller( around 200-10 nm range among three samples). but the FWHM of...
  2. R

    Characterising Coal Char Particles with XRD

    I want to characterise a coal char particle of size 6 to 15 mm using XRD. I am aware of powder XRD being done. But I want to subject the sample as it is as a lump particle. Is any such XRD possible. Will the XRD results of lumped sample differ from that of the powder sample? Please explain...
  3. J

    The XRD pattern of Zinc oxide and zinc oxide in acrylic acid

    the XRD pattern of Zinc oxide and zinc oxide in acrylic acid ! I did XRD analysis of zinc oxide, and its peaks are at 31.7, 34.4, 36.2, 47.5, 56.6, 62.9 and 67.9 (2-theta degree). further, I did XRD of zinc oxide dispersed in acrylic acid/IPA. but it's weird ! Why I could got some peaks at...
  4. M

    Scherrer Equation Question (XRD)

    Hello, I came to this forum looking for an answer to a pretty simply question about the Scherrer equation for peak broadening in the XRD pattern. I understand that the full-width-half-maximum of the peak must be in radians, but when I measure the FWHM, it is in 2 theta. Do I need to half...
  5. M

    Crystallite Size from XRD (comments on method required)

    Hi, the XRD in question is a Siemens (Bruker-Axs) D5000 and apologies as this may be a somewhat long post. A member of staff tried to change password permissions on our XRD Crystallite Size software (Win-Crysize) and the copyright dongle for the software didn’t like this, so we now have a...
  6. A

    XRD of Deformed Steel Sample: Electropolishing Needed?

    Why there is need to electropolishing of deformed steel sample for doing XRD ?
  7. A

    How to Identify Phases and Miller Indices in XRD Data?

    Hi friends, What is the best way to analyze the XRD data for phase identification and particle size calculation? so far I am using debye-scherrer's formula. Is there any advanced formula? thankyou
  8. G

    XRD Database: Online Resource for Crystal X-Ray Diffraction Peaks

    Hi, are there any online databases for the x-ray diffraction peaks of common and less common crystals?
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