Contact experts in XRD Analysis to get answers
3,242 views 471 posts
Questions related to XRD Analysis
i analyzed XRD for clay fractions around the seafloor hydrothermal vent system and i found such 2:1 clay minerals; montmorillonite and saponite peak pattern range from 14~15Å. and then samples...
06 November 2016 7,399 6 View
I have synthesized an already published procedure to get MOF-2. TGA performed for the synthesized MOF was matched with the reported data. But the PXRD results differed. PXRD was done about a month...
31 October 2016 2,279 20 View
Rietveld Refinement.
27 October 2016 5,292 6 View
I need to prepare multi-standards of different types of asbestos to make calibration curves for x-ray diffraction analysis. In the Annex 1 of DM 6/9/1994, the method for standard preparation is...
24 October 2016 970 0 View
I'm studying now the XRD profile analysis in order to get the dislocation densities by using the modified Warren-Averbach method. As shown in the figure, double peaks appear on the graph. The...
13 October 2016 4,919 3 View
I hv tried different concentrations of L-methionine but everytime the absorption peak is same as that of unmodified nanoparticles 420nm.
27 September 2016 2,244 3 View
Hi! Due to symmetry the piezo-optic tensor is represented as a 36 components matrix. Moreover and depending on the crystal structure most of this components are 0 or symmetric. In the case of the...
24 September 2016 4,615 1 View
I have XRD data but I don't know the bond lengths though they had given, unable to recognize which bond length is corresponds to which atoms, Please researchers help me out.
20 September 2016 6,718 5 View
If I got a Ge- Ge peak that is very smaller to the Ge reference peak almost no shifting, but a little wider and the FWHM values is very similar. Does this mean this sample has large grin size or...
16 September 2016 2,132 4 View
Model: DMA 8000 Brand: Perkin Elmer Analysis: Dynamic method, temp range -80 to 30degree, heating rate 3deg/min. Is there any specific explanation why I need to use lower strain for stiff sample...
30 August 2016 7,962 2 View
I have a sample (powder) and need to analyse its conductivity. I can easily measure the conductivity using Van-der-Paw four-probe system that is actually total conductivity that comes from both...
16 August 2016 2,502 2 View
Does anybody know what is the effect of solvent/water in MoS2/RGO nucleation and growth (particle size)? I synthesized MoS2/RGO using supercritical ethanol or water solvents system by mixing...
01 August 2016 4,404 3 View
I am using CIF files from ICSD database. In detailed view of the crystal structure file there are two options i.e. Published crystal structure data and Standardised crystal structure data. When...
30 July 2016 4,094 2 View
I have synthesized Y-zeolite with Si/Al ratio of 2.5 using a hydrothermal method and dried without any calcination step. After drying, I made NH4+ form of the zeolite via successive ion-exchange...
27 July 2016 777 2 View
I did the calculation using Scherrer's formula (D= Lambda/ Bita*cos(theta)). FWHM calculated from the XRD plot using Origin pro (multiple peak fit to deconvolute overlapped peaks and peak analyser...
23 July 2016 610 11 View
I know that it is possible to get the mean particle size (crystallites) of nanoparticle assemblies using Scherrer equation. However, for continuous this films, does the same formula work to obtain...
21 July 2016 5,072 3 View
I’m trying to calculate the penetration dept of the X-ray beam in my perovskite sample depending on the incidence angle. I found a tool...
19 July 2016 8,982 3 View
In case of my XRD characterization, the bulk density and X-ray density decreased while porosity increased after substitution of Manganese in Cr2O3. So, how can i justify these results?
18 July 2016 5,215 6 View
I would like to identify the crystal structure of Ti oxides in MAO coatings. However, the crystallinity is too small that is not possible to observe distinct peaks from the bulk sample. Therefore,...
15 July 2016 7,425 4 View
I have performed an FFT on the hydroxyapatite crystal taken by HR-TEM analysis and masked the reflections, subsequently done the inverse FFT to measure the spacings. The planes are 0.26 nm and...
15 July 2016 8,429 1 View
I would be grateful to you if somebody suggests me to solve my problem. I synthesized oleic acid coated iron oxide nanoparticles by thermal decomposition method. Now for XRD and VSM measurements,...
13 July 2016 1,984 2 View
I have prepared Manganese oxides insitu grown during the synthesis of silica nano spheres with fibrous morphology by one step hydrothermal process. MnOxides concentration shown by XPS is 0.24%...
11 July 2016 2,514 3 View
I am trying to do quantitative analysis using Bruker TOPAS, I followed the following steps: Loaded scan Loaded emission profile: CuKa5_Berger Background Parameters: chebyshev polynomial 4 degree,...
08 July 2016 2,435 17 View
I conducted XRD for two samples, let's say M1 and M2 ,Strength of M1> Strength of M2 In XRD, M1 shows less intense peak of CH and steeper peak for CSH while M2 shows steeper peak of CH. Does...
29 June 2016 6,571 3 View