I have GIXRD data for Ion irradiated Ni sample. I want to calculate domain size and microstrain using Warren–Averbach method. I donot get the option for WA analysis in the calculation tab using MARQX software after reading the input file. Can someone suggest what could be the reason?
Please post your diffractograms. Excel format would be ideal!
- "Ion irradiated Ni sample" - Got micrographs of your sample? What is the typical "grain size"?
- Do you anticipate any residual "preferred orientation" from prior mechanical processing for your Ni sample.
- Beam size/shape w.r.t. diffractometer axis (rocking axis)?
- Beam conditioning? Filters, monochromators, slits, etc.
- Got any known standards? A fully annealed sample, for example :-)
- Learning to use "software" is feasible but understanding the XRD technique and the effect of various experimental conditions and sample morphologies is quintessential.
- Got dental film or a 2D detector in your XRD lab?
- Origin does have Fourier analyses (1D & 2D) but none related to XRD as such that I know of yet :-)
- What XRD instrumentation are you using? Panalytical, Bruker, ??
My instinct is that the irradiation would create defects in individual surface grains rather than move existing grain boundaries. It would certainly depend on the levels of radiation administered.
https://www.researchgate.net/post/How_can_X-ray_diffraction_be_used_to_determine_the_crystal_structure#569773357eddd38a5c8b45a9
- What format is your GIXRD data? When you learn to convert to other formats, you'll be able to take advantage of many other software tools available in the "open source" domain.
- What instrumentation did you employ?
- Are you planning to answer any of the other questions?
Go to YouTube and explore!
http://www-ssrl.slac.stanford.edu/conferences/workshops/srxas-2012/documents/rodrigonoriega-srxas2012.pdf
http://www.scielo.br/pdf/mr/v4n2/v4n2a04.pdf
http://www.kstreetstudio.com/science/experiments/files/XRD-CSize1.pdf
It is quite obvious that you are still using the ubiquitous conventional equatorial scan diffractogram at DAE, Mumbai, India. You are no less than a century behind at least just like the rest of the general XRD world. Fortunately, a state-of-the-art XRD real time 2D quantitative imaging system is available for live demo in Bengaluru, India. This will allow you to monitor the relative dislocation density and relative residual stress in individual grains in your polycrystalline irradiated Ni sample. Using this technique, Weissmann et al at Rutgers, NJ, USA, 1980's were able to track the initiation of fatigue failure to individual grains for aluminum alloys and Ni based alloys. Exciting stuff, to be able to implemented that in real time!
young people try to get quick answers for their problems with out putting much effort and they end up in social media with silly questions.
But the so called pseudo intellectual sales representative try to offer them a beautiful wife at the stake of ailing mother, rather than giving them what they require.
Dear RUMU try to spend some time with the software, you will figure out your self how to work with it or else there are plenty of other open source software's which are better than what you are using for the same analysis. The file format that the software required may not be the same as your data file, check for it.
Since you feel that way, let us elevate the conversation constructively. Instead of dwelling on the mundane, as you have suggested, let us see if you even know what is being "sold" here. With only 5 followers, it would be a tough sale!
BTW Use of ASCII format for data should allow most software to be able to read most XRD data.
Are you folks at BARC using real time 2D XRD or still evolving?
Are you performing W-A analyses in 2D yet at the premier institution of India? Or are you still using the linear diffractogram as this young XRD user? Who is the head honcho of XRD over there at BARC? Connect with me if interested in a demo at your facility. I'll be there in India Jan 25 through Feb 17th. [email protected]
Unless the "so called pseudo intellectual sales representative" uses a cattle prod to shovel this thought process, the placid XRD community will continue to exist in antiquity nearly a century after the Bragg Nobel Prize in 1915 :-)
Don't condescend yourself into intellectual blindness :-)
The profession of sales is not that contempt worthy! Imagine if Gandhi wasn't able to sell the Britts into leaving peacefully and imagine the persuasion techniques of Jesus or Buddha not being fruitful :-)
Do remember you need to sell yourself and your ideas on a daily basis to:
- Your boss.
- Your wife.
- Your family.
- Your kids.
- etc......
https://www.flickr.com/photos/85210325@N04/10221065324/in/album-72157645018820696/
https://www.flickr.com/photos/85210325@N04/11604959265/in/album-72157645018820696/
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