Feasibility of Fourier Transform Laser Microprobe Mass Spectrometry for the Analysis of Lubricating Emulsions on Rolled Aluminium

Additives from lubricating emulsions used in the rolling step of aluminium plate production, are suspected to adhere to the surface and change the surface properties of the metal. The present study aims at investigating the feasibility of a Fourier transform laser microprobe mass spectrometer with external ion source to characterize the organic components at the metal surface. Special attention is given to the possible interactions between the additives and the aluminium. The experiments primarily involve model systems, consisting of aluminium with a thin coating of the individual components or of laboratory-made mixtures