Dear Rietvelders One of our assumption is that a new phase is forming during an in-situ process(done during XRD scanning) on a powder (few micron size crystalytes) surface (the powder is not randomly oriented). However attempts to obtain new or shifted x-ray diffraction peaks have failed.
Is it possible that we failed in getting new peaks since this surface grow (new phase) is a slab small in its wight percentage (say <1%) compare to the original large crystalytes? Scanning done using Bragg Brentano geometry xrd** <https://www.google.co.il/search?q=bragg+brentano+geometry+xrd&biw=1920&bih=979&tbm=isch&tbo=u&source=univ&sa=X&ei=quEoVKaMPOXm7gbgvYHAAw&ved=0CCMQsAQ>. We have tried teta/2-teta and teta/teta with source at 5deg. The detector was multi-channel. Can you please recommend on XRD method capable of determine such case? Thank you from advance Shay -- _________________________________________________ Dr. Shay Tirosh Institute for Nanotechnology & Advanced Materials Bar Ilan University Ramat Gan, 52900 Israel Phone: +972-(0)30-531-7320 Mobile: +972-(0)54-8834533 Email: stiro...@gmail.com _________________________________________________
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