Optimization of material analysis conditions for laser-assisted atom probe tomography characterization
T14N1
O.A. Raznitsyn, A.A. Lukyanchuk, A.S. Shutov, S.V. Rogozhkin, A.A. Aleev
Atom-probe tomography (APT) analysis with a femtosecond laser is one of the most promising techniques to characterize local variation of chemical distribution in materials on a sub-nanometer spatial resolution. In this study, the influence of APT analysis conditions on the accuracy of data recovery for chromium steels and alloys was investigated. Dependences of the mass resolving power and the detected composition of chromium as a function of laser power, the specimen geometry and the evaporation rate are presented.
