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Questions related from Ashok Bhakar
Using integral breadth or FWHM based conventional size-strain analysis method like W-H plot on XRD data, one can get estimation of apparent crystallite size and microstrain present in the sample....
04 April 2018 7,787 3 View
Peak profile: TCH p-v (npr=7 in FullProf). (1) For lab source (Beam horizontal size: 12mm and detector type: Lynx eye or scintillation) Condition (a) Goniometer radius = 280mm Soller slits: 2.3...
12 December 2015 1,726 4 View
Suppose there are two XRD instruments with resolution/FWHM (A) 0.030 & (B) 0.30 @ two theta ~ 350 (assume these Instrument FWHM are calculated by measuring same NIST SRM powder at two...
04 April 2015 4,905 5 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...
06 June 2014 3,914 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,...
02 February 2014 5,362 4 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...
09 September 2013 9,224 4 View
There are series of NIST standard Si (640) and LaB6 (660) available, having slightly different lattice constant "a" e.g. Si 640b: 5.430940(11) & Si 640d: 5.43159 (20). In this case, lattice...
08 August 2013 1,534 0 View
I want to enhance the counts of XRD data with Option 1: multiplying each data point with a constant ( say 100) Option 2: Adding a constant number 100 or 1000 to cach data point. To keep the...
06 June 2013 3,659 10 View
