Beschichtungen ortsaufgelöst messen

Basler, Carl; Kappeler, Moritz; Brandenburg, Albrecht

doi:10.1007/s35144-021-1451-8

Cited by 2 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They used a Nd:YAG laser with 5 ns pulse duration to ablate a 5–15 μm coating of Be, O, C, H and D on a tungsten substrate. The resolution and precision of the ablation process can be improved by using an ultra-short laser pulse (pico- or femtosecond), as shown by [ 7 ] and in our group [ 8 , 9 ]. In all these fields, LIBS competes with the more common techniques like SIMS, ICP-OES/MS and REM-EDX.…”

Section: Introductionmentioning

confidence: 94%

Depth-Resolved Elemental Analysis on Moving Electrode Foils with Laser-Induced Breakdown Spectroscopy

Basler

Kappeler

Carl

2023

Sensors

Self Cite

View full text Add to dashboard Cite

In this study, a new method for the inline measurement of depth profiles on a continuously moving sample with laser-induced breakdown spectroscopy is presented. The ablation profile is generated by ablating the sample with a burst of laser pulses, where the emission spectrum of each laser-induced plasma is analyzed on a spectrometer. A Q-switched Nd:YAG laser at 1064 nm with 10 mJ pulse energy, 6 ns pulse duration and 100 Hz repetition rate was used. The focusing lens for the pulsed laser and a deflection mirror are mounted on a moving stage, which is precisely aligned in height and orientation to the movement of a conveyor belt transporting the sample. The stage speed is actively synchronized to the speed of the moving sample by a wheel encoder to assure that all laser pulses hit the same position at the sample. The feasibility for depth-resolved elemental analysis on moving samples is shown for coatings of electrode foils for lithium-ion batteries. The coating homogeneity was measured at a speed up to 17 m/min. For a 100 µm coating, 10 laser pulses were needed to measure a full depth profile.

show abstract

Section: Introductionmentioning

confidence: 94%