OUTGASSING OF HYDROGEN M. Leisch

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Institute of Solid State Physics Analysis of surface composition AES gives sign for slight enrichment of Ni and depletion of Cr but due to information depth of this technique composition of topmost layer almost uncertain. Atom probe provides true atomic layer composition. Quantitative analysis simply by counting of the field evaporated ions. Professor Manfred <strong>Leisch</strong> Horst Cerjak, 19.12.2005 63rd IUVSTA Workshop Avila September 17, 2010 43
Institute of Solid State Physics Atom probe depth profiling analysis Samples Samples were cut by low speed diamond saw from stainless steel samples (needles 0.3mm x 0.3mm), electropolished to fine tips (tip radius >10nm) and mounted on Mo heating loop. Thermal treatment: – vacuum firing in situ by resistive heating – Temperature control by micro pyrometer Professor Manfred <strong>Leisch</strong> Horst Cerjak, 19.12.2005 63rd IUVSTA Workshop Avila September 17, 2010 44
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OUTGASSING OF HYDROGEN M. Leisch

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