Question#2 A Research and Development (R&D) team, that you are part of, is taske

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Question#2 A Research and Development (R&D) team, that you are part of, is tasked of developing a new advanced metal alloy that should withstand harsh environment in term of (a) stability at high temperatures, (b) resistance to oxidation and (c) and resistance to H induced embrittlement. After careful considerations and evaluation of materials selection parameters, the R&D team chooses to evaluate a material compound consisting of Niobium, Titanium and Nitrogen. 1. Can XRF be used for the identification of Nb, Ti, N and H? Explain why? 2. Can you use XRF to determine the atomic composition ratio of Nb to Ti? 3. Draw an XRF graph Number of X-rays detected" VERSUS "X-ray energy") for the above sample and label all the K, L and M observable X-ray peaks with energies less than 20 KeV.

Explanation / Answer

a) Yes, XRF can be used for the identification of Nb, Ti and H. Since all these specified are chemical elements.

b) Yes. one can use XRF to determine the atomic composition ratio of Nb to Ti, by considering the elemental concentrations. also the position of these elements in the sample.

C) I have no idea about this point.

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