Determination of Zr and Ti in 3- mu m-Thick ZrTiN Ceramic Coating Using Laser Ablation Inductively Coupled Plasma Atomic Emission Spectrometry

Authors: Kanicky, Viktor; Musil, Jan; Mermet, Jean-Michel

Source: Applied Spectroscopy, Volume 51, Issue 7, Pages 258A-281A and 921-1079 (July 1997) , pp. 1037-1041(5)

Publisher: Society for Applied Spectroscopy

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Analysis of 3- mu m-thick ZrN, TiN, and ZrTiN ceramic coatings on a high-speed steel substrate by laser ablation inductively coupled plasma atomic emission spectrometry (LA-ICP-AES) is described. A Nd:YAG laser was used in the Q-switched mode and operated at 355 nm and 5 mJ. Ablation patterns were obtained on the target surface by moving the ablation chamber with respect to the laser beam by means of an X-Y translator. Control of the depth of penetration was obtained by successively performing a limited number of cycles. Transient signals were obtained and their peak areas were used for the construction of calibration graphs based on the concentrations determined by energy-dispersive X-ray (EDX) analysis. An erosion rate of 0.1 mu m per cycle was observed. Crater shape and depth, temporal behavior, and reproducibility of the signals are described.
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