Improved analysis of atom probe tomography data

Abstract

The Half-Heusler alloy (TiCuyNiSn) could play a considerable role in future because its thermoelectric property could enable waste heat to be recycled but its efficiency still far from energy efficiency strategies. When the composition is optimized, the thermoelectric property could be improved. In this article, the Half-Heusler alloy (TiCuyNiSn) was investigated by atom probe tomography where two sets of data (voltage and laser pulse) were analyzed to find material composition and its quantities. Moreover, the Gaussian distribution which is the basic analysis to assign the solute and the Exponentially Modified Gaussian (EMG) were applied to the data. As result the data was successfully model and the composition was accurately found.