White Papers
We currently have two white papers available for download. Registered users can view or download these and any other white papers that may be added to the site in future.
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Materials Analysis and Problem Solving with an Electron Microprobe
This paper describes how electron microprobe analysis has been used effectively in industrial materials problem solving. Three case studies are briefly presented to illustrate how the unique capabilities of the electron microprobe were used to solve each problem quickly and cost effectively. These examples illustrate how a methodical approach to problem solving, microchemical analyses, and collaboration in a cross-functional team have led to rapid identification of root cause, and successful recovery from difficult situations. Finally, guidelines are offered on some points to consider when facing problems with materials or processes.
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Detrimental Element Analysis of Non-Metallic Materials Used in Nuclear Reactors
Metals and anions that initiate or accelerate corrosion are of concern in evaluating the suitability of a non-metallic material for use in a nuclear reactor environment. This paper describes several analysis techniques for measuring concentrations of these detrimental elements. Chemical analysis for halogens, sulfur, and low-melting point metals by ASTM D129, E144 and D3761, using oxygen bomb or water leaching preparation with ion chromatography (IC) and inductively-coupled plasma (ICP) optical emission spectroscopy (OES or AES) is described. Some independent testing laboratories are approved for testing materials for use in nuclear safety-related applications. Guidelines are offered for selecting a suitable lab, whose quality and reporting standards must be in compliance with 10 CFR 50 Appendix B and 10 CFR Part 21 federal requirements.
