scholarly journals Laser Defocusing Effects on Laser Ablation Inductively Coupled Plasma-Atomic Emission Spectrometry: Different Ablation Interactions between the Laser and Low-Alloy Steel, Fe Pellets, and a Pond Sediment Pellet

2004 ◽  
Vol 20 (4) ◽  
pp. 701-706 ◽  
Author(s):  
Masaki OHATA ◽  
Naoki FURUTA
1997 ◽  
Vol 51 (7) ◽  
pp. 1037-1041 ◽  
Author(s):  
Viktor Kanicky ◽  
Jan Musil ◽  
Jean-Michel Mermet

Analysis of 3-μm-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 μm per cycle was observed. Crater shape and depth, temporal behavior, and reproducibility of the signals are described.


Sign in / Sign up

Export Citation Format

Share Document