J 2024

Depth profiling of W–Ta based fusion-relevant samples using picosecond laser ablation

SONI, Shweta, Sahithya ATIKUKKE, Matej VEIS, Nima BOLOUKI, Pavol ĎURINA et. al.

Basic information

Original name

Depth profiling of W–Ta based fusion-relevant samples using picosecond laser ablation

Authors

SONI, Shweta, Sahithya ATIKUKKE, Matej VEIS, Nima BOLOUKI (364 Islamic Republic of Iran, belonging to the institution), Pavol ĎURINA, Pavel DVOŘÁK (203 Czech Republic, belonging to the institution), Martina MRKVIČKOVÁ (203 Czech Republic, belonging to the institution), Eduard GRIGORE and Pavel VEIS

Edition

Spectrochimica Acta Part B: Atomic Spectroscopy, Elsevier B.V. 2024, 0584-8547

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10305 Fluids and plasma physics

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.300 in 2022

Organization unit

Faculty of Science

UT WoS

001272010800001

Keywords in English

Ps-LIBS; CF-LIBS; Tungsten; WTa(D); GDOES; Confocal microscopy; Depth profile; Ablation rate

Tags

Tags

International impact, Reviewed
Změněno: 11/10/2024 14:16, Mgr. Marie Šípková, DiS.

Abstract

V originále

This study presents a detailed picosecond LIBS analysis of WTa coatings on Molybdenum substrate with varying layer thicknesses for fusion relevant applications. Ps-LIBS is performed on three WTa layers; two without deuterium (∼7 μm thickness) and one with deuterium (∼1 μm thickness). The LIBS measurements are conducted under argon gas flow at 5±0.2 mbar pressure with different laser pulse energies (1 mJ, 3 mJ) and 100 spectra are recorded consecutively at one spot on the sample for different set of gate delay/gate width (200/200 ns, 300/300 ns, 450/450 ns). The obtained LIBS and Glow-Discharge Optical Emission Spectroscopy (GDOES) depth profiles are compared with the confocal microscopic measurements showing good agreement. Additionally, the ablation rate and layer thickness are calculated for different experimental conditions. The Calibration-Free LIBS approach is used for elemental analysis and the results are compared with GDOES results. The capability of ps-LIBS to quantify Ta in WTa alloy is explored for 2 at.% of Ta. However, due to higher ablation rate of laser and thin coating in WTaD sample, the layer is irradiated in few laser pulse and therefore, CF-LIBS analysis is not performed for it.

Links

LM2018097, research and development project
Name: Centrum výzkumu a vývoje plazmatu a nanotechnologických povrchových úprav (Acronym: CEPLANT)
Investor: Ministry of Education, Youth and Sports of the CR