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Questions related from Ashok Bhakar
I am learning Whole Powder Pattern Modelling (WPPM using PM2K) of powder XRD data to estimating microstructural properties. In this approach peak intensities are treated as free fitting parameters...
01 May 2020 7,964 1 View
In multiphase phase refinement % of phases depends on ATZ value. What are the ATZ value for Pm-3m phase of PbMg1/3Nb2/3O3(ATZ calculated by Fullprof=325.25) & for R3m phase of PbMg1/3Nb2/3O3...
18 May 2015 3,120 9 View
The base centered monoclinic Space group of Bi4Ti3O12 (as per JCPDF # 01-074-7113 (2004)) is B1a1 (7). This is non-convention setting of S.G. P1c1 (7). I want to test my XRD data with S.G. B1a1...
17 June 2014 3,778 2 View
The visual inspection of each fitted XRD peak is one of the best way to judge the quality of fit. Improvement of Rietveld fitting is also reflects in the lowering of agreement factors (Rp, Rwp,...
14 February 2014 7,003 3 View
Chemical powders are supplied by various companies with MSDS & CoA. Are these companies approving for accuracy and validity of MSDS & CoA from an organization/ agency? If so, could anyone provide...
19 September 2013 6,820 3 View
In an ideal cubic perovskite (ABO3) compound with SG pm-3m atomic positions are A at 1a (0, 0, 0); B at 1b (0.5, 0.5, 0.5) and O at 3c (0, 0.5, 0.5). In FULLPROF program their occupancies can be...
08 May 2013 9,398 10 View
