Abstract

Laser-induced breakdown spectroscopy using a microchip laser and a miniature spectrometer has been applied to the determination of carbon in steel. The goal was to investigate the capability of an apparatus, made up of commercial components, that could form the basis of a handheld device. The typical precision obtained in the range of C/Fe weight ratios of 0.001 to 0.01 was 4.3%, and the limit of detection was a C/Fe ratio of 400 ppm. This is higher than values reported for conventional systems and is primarily determined by systematic variations in the spectra and not by signal intensity levels. These systematic variations are ascribed to two causes: the use of an ungated detector and the spatial variability of the emission plume.

Carbon analysis of steel using compact spectrometer and passively Q-switched laser for laser-induced breakdown spectroscopy

Volker Sturm, Benjamin Erben, Rüdiger Fleige, and Witalij Wirz
Opt. Express 27(25) 36855-36863 (2019)

Carbon determination in carbon-manganese steels under atmospheric conditions by Laser-Induced Breakdown Spectroscopy

Timur A. Labutin, Sergey M. Zaytsev, Andrey M. Popov, and Nikita B. Zorov
Opt. Express 22(19) 22382-22387 (2014)

Determinations of trace boron in superalloys and steels using laser-induced breakdown spectroscopy assisted with laser-induced fluorescence

Changmao Li, Zhongqi Hao, Zhimin Zou, Ran Zhou, Jiaming Li, Lianbo Guo, Xiangyou Li, Yongfeng Lu, and Xiaoyan Zeng
Opt. Express 24(8) 7850-7857 (2016)

Detection of trace phosphorus in steel using laser-induced breakdown spectroscopy combined with laser-induced fluorescence

X. K. Shen, H. Wang, Z. Q. Xie, Y. Gao, H. Ling, and Y. F. Lu
Appl. Opt. 48(13) 2551-2558 (2009)

Quantitative elemental analysis of steel using calibration-free laser-induced breakdown spectroscopy

M. L. Shah, A. K. Pulhani, G. P. Gupta, and B. M. Suri
Appl. Opt. 51(20) 4612-4621 (2012)