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Mix phase Rietveld Refinement

  1. Oct 22, 2012 #1
    Hi guys,

    I am using Xpert Highscore Plus to carry out a Rietveld refinement for my XRD pattern.
    I am looking at the lattice parameters and weight fractions.
    I am fine with the phase identification. However, it tends to show that my secondary phase (MgO) has higher weight fraction than the primary (MgB2) after Rietveld refinement. I suspect the main peaks of these 2 phases are too close to each other which the program cannot differentiate properly as the primary phase should be in much higher weight fractions. How should I refine it then? Please advise.

    Thanks guys.
     
    Last edited: Oct 23, 2012
  2. jcsd
  3. Oct 23, 2012 #2
    bump!
     
  4. Oct 30, 2012 #3
    help?
     
  5. Nov 6, 2012 #4
    bump!
     
  6. Nov 20, 2012 #5
    help!
     
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