Effect of Field-evaporation Rate on Quantitative Atom-probe Analysis
نویسندگان
چکیده
The effects of field-evaporation rate on the quantitative chemical analysis of materials by atom-probe field-ion microscopy are considered. Examples of erroneously high measured values of the Ti concentration in Mo-1.0 at.% Ti and Mo-1.0 at.% Ti-0.08 at.% Zr (TZM) alloys are presented and the cause is shown to have been due to a high field-evaporation rate. The basic arguments used to explain these observations are applicable for the quantitation of all alloy systems studied by the atom-probe field-ion microscope technique.
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